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LM4041-N
,
LM4041-N-Q1
SNOS641G OCTOBER 1999REVISED JANUARY 2016
LM4041-N-xx Precision Micropower Shunt Voltage Reference
1 Features 3 Description
Ideal for space-critical applications, the LM4041-N
1 Qualified for Automotive Applications precision voltage reference is available in the sub-
SEC-Q100 Qualified With the Following Results: miniature SC70 and SOT-23 surface-mount
Device Temperature Grade 1: –40°C to packages. The advanced design of the LM4041-N
+125°C Ambient Temperature Range eliminates the need for an external stabilizing
capacitor while ensuring stability with any capacitive
Device Temperature Grade 3: –40°C to +85°C load, thus making the LM4041-N easy to use. Further
Ambient Temperature Range (For SOT-23 reducing design effort is the availability of a fixed
Only) (1.225 V) and adjustable reverse breakdown voltage.
Available in Standard, AEC Q-100 Grade 1 The minimum operating current is 60 μA for the
(Extended Temperature Range), and Grade 3 LM4041-N 1.2 and the LM4041-N ADJ. Both versions
(Industrial Temperature Range) Qualified Versions have a maximum operating current of 12 mA.
(SOT-23 Only) The LM4041-N uses fuse and Zener-zap reverse
Small Packages: SOT-23, TO-92, and SC70 breakdown or reference voltage trim during wafer sort
to ensure that the prime parts have an accuracy of
No Output Capacitor Required better than ±0.1% (A grade) at 25°C. Bandgap
Tolerates Capacitive Loads reference temperature drift curvature correction and
Reverse Breakdown Voltage Options of 1.225 V low dynamic impedance ensure stable reverse
and Adjustable breakdown voltage accuracy over a wide range of
operating temperatures and currents.
Output Voltage Tolerance (A grade, 25°C) =
±0.1%(Maximum) Device Information(1)
Low Output Noise (10 Hz to 10kHz) = 20 μVrms PART NUMBER PACKAGE BODY SIZE (NOM)
Wide Operating Current Range of 60 μA to 12 mA SC70 (5) 1.25 mm × 2.00 mm
Industrial Temperature Range (LM4041A/B-N, LM4041-N SOT-23 (3) 1.30 mm × 2.92 mm
LM4041-N-Q1A/Q1B) of 40°C to +85°C TO-92 (3) 4.30 mm × 4.30 mm
Extended Temperature Range (LM4041C/D/E-N, LM4041-N-Q1 SOT-23 (3) 1.30 mm × 2.92 mm
LM4041-N-Q1C/Q1D/Q1E) of 40°C to +125°C (1) For all available packages, see the orderable addendum at
Low Temperature Coefficient of 100 ppm/°C the end of the data sheet.
(Maximum) Block Diagram
2 Applications
Portable, Battery-Powered Equipment
Data Acquisition Systems
Instrumentation
Process Control
Energy Management
Automotive
Precision Audio Components
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
LM4041-N
,
LM4041-N-Q1
SNOS641G OCTOBER 1999REVISED JANUARY 2016
www.ti.com
Table of Contents
1 Features.................................................................. 17 Parameter Measurement Information ................ 17
2 Applications ........................................................... 18 Detailed Description............................................ 17
8.1 Overview................................................................. 17
3 Description............................................................. 18.2 Functional Block Diagram....................................... 17
4 Revision History..................................................... 28.3 Feature Description................................................. 17
5 Pin Configuration and Functions......................... 38.4 Device Functional Modes........................................ 18
6 Specifications......................................................... 49 Application and Implementation ........................ 19
6.1 Absolute Maximum Ratings ...................................... 49.1 Application Information............................................ 19
6.2 ESD Ratings.............................................................. 59.2 Typical Applications ................................................ 20
6.3 Recommended Operating Conditions....................... 510 Power Supply Recommendations ..................... 27
6.4 Thermal Information.................................................. 511 Layout................................................................... 27
6.5 LM4041-N-xx 1.2 Electrical Characteristics (Industrial
Temperature Range).................................................. 611.1 Layout Guidelines ................................................. 27
6.6 LM4041-N-xx 1.2 Electrical Characteristics (Industrial 11.2 Layout Example .................................................... 27
Temperature Range).................................................. 712 Device and Documentation Support................. 28
6.7 LM4041-N-xx 1.2 Electrical Characteristics (Extended 12.1 Related Links ........................................................ 28
Temperature Range).................................................. 912.2 Community Resources.......................................... 28
6.8 LM4041-N-xx ADJ (Adjustable) Electrical 12.3 Trademarks........................................................... 28
Characteristics (Industrial Temperature Range)...... 11 12.4 Electrostatic Discharge Caution............................ 28
6.9 LM4041-N-xx ADJ (Adjustable) Electrical 12.5 Glossary................................................................ 28
Characteristics (Extended Temperature Range) ..... 13
6.10 Typical Characteristics.......................................... 14 13 Mechanical, Packaging, and Orderable
Information........................................................... 28
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision F (July 2013) to Revision G Page
Added ESD Ratings table, Feature Description section, Device Functional Modes,Application and Implementation
section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and
Mechanical, Packaging, and Orderable Information section ................................................................................................. 1
Changes from Revision D (April 2013) to Revision E Page
Changed layout of National Data Sheet to TI format ........................................................................................................... 24
2Submit Documentation Feedback Copyright © 1999–2016, Texas Instruments Incorporated
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1.2 V
1
2
+3*
1
2
3
N/C*
t
+
5
N/C
4
N/C
LM4041-N
,
LM4041-N-Q1
www.ti.com
SNOS641G OCTOBER 1999REVISED JANUARY 2016
5 Pin Configuration and Functions
DBZ Package DCK Package
3-Pin SOT-23 5-Pin SC70
Top View Top View
LP Package
3-Pin TO-92
Top View
Pin Functions
PIN I/O DESCRIPTION
NAME SOT-23 SC70 TO-92
Anode 2 1 1 O Anode pin, normally grounded
Cathode 1 3 2 I/O Shunt current and output voltage
FB I Feedback pin for adjustable output voltage
NC** 3 2 **Must float or connect to anode
NC 4, 5 3 No connect
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1
2
3
t
+
5
FB
4
N/C
ADJ
N/C
ADJ
1
2
+
3
FB
LM4041-N
,
LM4041-N-Q1
SNOS641G OCTOBER 1999REVISED JANUARY 2016
www.ti.com
DBZ Package
3-Pin SOT-23 DCK Package
Top View 5-Pin SC70
Top View
LP Pakage
3-Pin TO-92
Bottom View
Pin Functions: ADJ Pinouts
PIN I/O DESCRIPTION
NAME SOT-23 SC70 TO-92
Anode 3 2 1 O Anode pin, normally grounded
Cathode 2 3 2 I/O Shunt current and output voltage
FB 1 5 3 I Feedback pin for adjustable output voltage
NC** **Must float or connect to anode
NC 1, 4 No connect
6 Specifications
6.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)(1)(2)
MIN MAX UNIT
Reverse current 20 mA
Forward current 10 mA
Maximum output voltage (LM4041-N ADJ, LM4041-N-Q1 ADJ) 15 V
DBZ package 306 mW
Power dissipation (TA= 25°C)(3) LP package 550 mW
DCK package 241 mW
Vapor phase (60 seconds) 215 °C
DBZ packages
Lead temperature Infrared (15 seconds) 220 °C
LP package Soldering (10 seconds) 260 °C
Storage temperature, Tstg –65 150 °C
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended
Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) If Military/Aerospace specified devices are required, please contact the TI Sales Office/ Distributors for availability and specifications.
(3) The maximum power dissipation must be derated at elevated temperatures and is dictated by TJmax (maximum junction temperature),
θJA (junction to ambient thermal resistance), and TA(ambient temperature). The maximum allowable power dissipation at any
temperature is PDmax = (TJmax TA)/RθJA or the number given in the Absolute Maximum Ratings, whichever is lower. For the LM4041-N,
TJmax = 125°C, and the typical thermal resistance (RθJA), when board mounted, is 326°C/W for the SOT-23 package, 415°C/W for the
SC70 package and 180°C/W with 0.4-in lead length and 170°C/W with 0.125-in lead length for the TO-92 package.
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6.2 ESD Ratings VALUE UNIT
Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1)(2) ±2000
Electrostatic
V(ESD) Charged-device model (CDM), per JEDEC specification JESD22-C101(3) ±200 V
discharge Machine model (MM) ±200
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
(2) The human-body model is a 100-pF capacitor discharged through a 1.5-kΩresistor into each pin. The machine model is a 200-pF
capacitor discharged directly into each pin. All pins are rated at 2 kV for human-body model, but the feedback pin which is rated at
1 kV.
(3) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process. Manufacturing with
less than 250-V CDM is possible with the necessary precautions.
6.3 Recommended Operating Conditions
See (1)
MIN NOM MAX UNIT
Temperature Tmin TATmax °C
Industrial temperature –40 TA85 °C
Extended temperature –40 TA125 °C
LM4041-N 1.2, LM4041-N-Q1 1.2 60 1200 μA
Reverse current LM4041-N ADJ, LM4041-N-Q1 ADJ 60 1200 μA
Output voltage LM4041-N ADJ, LM4041-N-Q1 ADJ 1.24 10 V
(1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Recommended Operating Conditions indicate
conditions for which the device is functional, but do not ensure specific performance limits. For ensured specifications and test
conditions, see the Electrical Characteristics. The ensured specifications apply only for the test conditions listed. Some performance
characteristics may degrade when the device is not operated under the listed test conditions.
6.4 Thermal Information LM4041-N,
LM4041-N LM4041-N-Q1
THERMAL METRIC(1) UNIT
SC70 TO-92 SOT-23
5 PINS 3 PINS 3 PINS
RθJA Junction-to-ambient thermal resistance 265.3 161.5 291.9 °C/W
RθJC(top) Junction-to-case (top) thermal resistance 93.1 84.5 114.3 °C/W
RθJB Junction-to-board thermal resistance 46.7 62.3 °C/W
ψJT Junction-to-top characterization parameter 2.2 28.4 7.4 °C/W
ψJB Junction-to-board characterization parameter 45.9 140.6 61 °C/W
RθJC(bot) Junction-to-case (bottom) thermal resistance °C/W
(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report, SPRA953.
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6.5 LM4041-N-xx 1.2 Electrical Characteristics (Industrial Temperature Range)
All limits TA= TJ= 25°C for the LM4041xAIM3, LM4041xBIM3, LM4041AIZ, LM4041BIZ and LM4041BIM7 devices, unless
otherwise specified. The grades A and B designate initial reverse breakdown voltage tolerances of ±0.1% and ±0.2%,
respectively.
PARAMETER TEST CONDITIONS MIN(1) TYP(2) MAX(1) UNIT
Reverse breakdown IR= 100 μA 1.225 V
voltage
LM4041AIM3, LM4041QAIM3 ±1.2
LM4041AIM3, LM4041AIZ
IR= 100 μALM4041BIM3, LM4041QBIM3
VR±2.4
LM4041BIZ, LM4041BIM7
Reverse breakdown mV
voltage tolerance(3) LM4041AIM3, LM4041QAIM3 ±9.2
LM4041AIM3, LM4041AIZ
TA= TJ= TMIN to TMAX LM4041BIM3, LM4041QBIM3 ±10.4
LM4041BIZ, LM4041BIM7
TA= TJ= 25°C 45 60
Minimum operating
IRMIN μA
current TA= TJ= TMIN to TMAX 65
IR= 10 mA ±20
Average reverse TA= TJ= 25°C ±15
breakdown
ΔVR/ΔT IR= 1 mA ppm/°C
voltage temperature TA= TJ= TMIN to TMAX ±100
Coefficient(3) IR= 100 μA ±15
TA= TJ= 25°C 0.7 1.5
IRMIN IR1 mA
Reverse breakdown TA= TJ= TMIN to TMAX 2
voltage change with
ΔVR/ΔIRmV
operating TA= TJ= 25°C 4 6
current change(4) 1 mA IR12 mA TA= TJ= TMIN to TMAX 8
Reverse dynamic IR= 1 mA, f = 120 Hz,
ZR0.5 1.5 Ω
impedance IAC= 0.1 IR
IR= 100 μA
eNWideband noise 20 μVrms
10 Hz f10 kHz
Reverse breakdown t = 1000 hrs
ΔVRvoltage long-term T = 25°C ±0.1°C 120 ppm
stability IR= 100 μA
VHYST Thermal hysteresis(5) ΔT = 40°C to +125°C 0.08%
(1) Limits are 100% production tested at 25°C. Limits over temperature are ensured through correlation using Statistical Quality Control
(SQC) methods. The limits are used to calculate AOQL.
(2) Typicals are at TJ= 25°C and represent most likely parametric norm.
(3) The overtemperature limit for Reverse Breakdown Voltage Tolerance is defined as the room temperature Reverse Breakdown Voltage
Tolerance ±[(ΔVRΔT)(max ΔT)(VR)]. Where, ΔVR/ΔT is the VRtemperature coefficient, maxΔT is the maximum difference in
temperature from the reference point of 25 °C to T MAX or TMIN, and VRis the reverse breakdown voltage. The total over-temperature
tolerance for the different grades in the industrial temperature range where maxΔT = 65°C is shown below:
A-grade: ±0.75% = ±0.1% ±100 ppm/°C × 65°C
B-grade: ±0.85% = ±0.2% ±100 ppm/°C × 65°C
C-grade: ±1.15% = ±0.5% ±100 ppm/°C × 65°C
D-grade: ±1.98% = ±1.0% ±150 ppm/°C × 65°C
E-grade: ±2.98% = ±2.0% ±150 ppm/°C × 65°C
The total over-temperature tolerance for the different grades in the extended temperature range where max ΔT = 100 °C is shown
below:
B-grade: ±1.2% = ±0.2% ±100 ppm/°C × 100°C
C-grade: ±1.5% = ±0.5% ±100 ppm/°C × 100°C
D-grade: ±2.5% = ±1.0% ±150 ppm/°C × 100°C
E-grade: ±4.5% = ±2.0% ±150 ppm/°C × 100°C
Therefore, as an example, the A-grade LM4041-N 1.2 has an over-temperature Reverse Breakdown Voltage tolerance of ±1.2 V ×
0.75% = ±9.2 mV.
(4) Load regulation is measured on pulse basis from no load to the specified load current. Output changes due to die temperature change
must be taken into account separately.
(5) Thermal hysteresis is defined as the difference in voltage measured at +25°C after cycling to temperature –40°C and the +25°C
measurement after cycling to temperature +125°C.
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6.6 LM4041-N-xx 1.2 Electrical Characteristics (Industrial Temperature Range)
All limits TA= TJ= 25°C. unless otherwise specified. The grades C, D, and E designate initial reverse breakdown voltage
tolerances of ±0.5%, ±1.0%, and ±2.0%, respectively.
PARAMETER TEST CONDITIONS MIN(1) TYP(2) MAX(1) UNIT
Reverse
Breakdown IR= 100 μA 1.225 V
Voltage
LM4041CIM3, LM4041QCIM3, ±6
LM4041CIZ, LM4041CIM7
LM4041DIM3, LM4041QDIM3,
TA= TJ= 25°C ±12
LM4041DIZ, LM4041DIM7
VRLM4041EIM3, LM4041QEIM3,
Reverse ±25
LM4041EIZ, LM4041EIM7
breakdown IR= 100 μA mV
voltage LM4041CIM3, LM4041QCIM3, ±14
tolerance(3) LM4041CIZ, LM4041CIM7
LM4041DIM3, LM4041QDIM3,
TA= TJ= TMIN to TMAX ±24
LM4041DIZ, LM4041DIM7
LM4041EIM3, LM4041QEIM3, ±36
LM4041EIZ, LM4041EIM7
LM4041CIM3, LM4041QCIM3, 45 60
LM4041CIZ, LM4041CIM7
LM4041DIM3, LM4041QDIM3,
TA= TJ= 25°C LM4041DIZ, LM4041DIM7 65
LM4041EIM3, LM4041QEIM3,
LM4041EIZ, LM4041EIM7
Minimum
IRMIN μA
operating current LM4041CIM3, LM4041QCIM3, 65
LM4041CIZ, LM4041CIM7
LM4041DIM3, LM4041QDIM3,
TA= TJ= TMIN to TMAX LM4041DIZ, LM4041DIM7 70
LM4041EIM3, LM4041QEIM3,
LM4041EIZ, LM4041EIM7
IR= 10 mA ±20
TA= TJ= 25°C ±15
LM4041CIM3, LM4041QCIM3, ±100
LM4041CIZ, LM4041CIM7
VRTemperature
ΔVR/ΔT IR= 1 mA ppm/°C
coefficient(3) LM4041DIM3, LM4041QDIM3,
TA= TJ= TMIN to TMAX LM4041DIZ, LM4041DIM7 ±150
LM4041EIM3, LM4041QEIM3,
LM4041EIZ, LM4041EIM7
IR= 100 μA ±15
(1) Limits are 100% production tested at 25°C. Limits over temperature are ensured through correlation using Statistical Quality Control
(SQC) methods. The limits are used to calculate AOQL.
(2) Typicals are at TJ= 25°C and represent most likely parametric norm.
(3) The overtemperature limit for reverse breakdown voltage tolerance is defined as the room temperature reverse breakdown voltage
tolerance ±[(ΔVRΔT)(max ΔT)(VR)]. Where, ΔVR/ΔT is the VRtemperature coefficient, maxΔT is the maximum difference in
temperature from the reference point of 25 °C to T MAX or TMIN, and VRis the reverse breakdown voltage. The total over-temperature
tolerance for the different grades in the industrial temperature range where maxΔT = 65°C is shown below:
A-grade: ±0.75% = ±0.1% ±100 ppm/°C × 65°C
B-grade: ±0.85% = ±0.2% ±100 ppm/°C × 65°C
C-grade: ±1.15% = ±0.5% ±100 ppm/°C × 65°C
D-grade: ±1.98% = ±1.0% ±150 ppm/°C × 65°C
E-grade: ±2.98% = ±2.0% ±150 ppm/°C × 65°C
The total over-temperature tolerance for the different grades in the extended temperature range where max ΔT = 100 °C is shown
below:
B-grade: ±1.2% = ±0.2% ±100 ppm/°C × 100°C
C-grade: ±1.5% = ±0.5% ±100 ppm/°C × 100°C
D-grade: ±2.5% = ±1.0% ±150 ppm/°C × 100°C
E-grade: ±4.5% = ±2.0% ±150 ppm/°C × 100°C
Therefore, as an example, the A-grade LM4041-N 1.2 has an over-temperature reverse breakdown voltage tolerance of ±1.2 V × 0.75%
= ±9.2 mV.
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LM4041-N-xx 1.2 Electrical Characteristics (Industrial Temperature Range) (continued)
All limits TA= TJ= 25°C. unless otherwise specified. The grades C, D, and E designate initial reverse breakdown voltage
tolerances of ±0.5%, ±1.0%, and ±2.0%, respectively.
PARAMETER TEST CONDITIONS MIN(1) TYP(2) MAX(1) UNIT
LM4041CIM3, LM4041QCIM3, 0.7 1.5
LM4041CIZ, LM4041CIM7
LM4041DIM3, LM4041QDIM3,
TA= TJ= 25°C LM4041DIZ, LM4041DIM7 2
(LM4041EIM3, LM4041QEIM3,
LM4041EIZ, LM4041EIM7
IRMIN IR1 mA mV
LM4041CIM3, LM4041QCIM3, 2
LM4041CIZ, LM4041CIM7
LM4041DIM3, LM4041QDIM3,
TA= TJ= TMIN to TMAX LM4041DIZ, LM4041DIM7 2.5
Reverse LM4041EIM3, LM4041QEIM3,
breakdown LM4041EIZ, LM4041EIM7)
ΔVR/ΔIRvoltage change LM4041CIM3, LM4041QCIM3,
with operating 2.5 6
LM4041CIZ, LM4041CIM7
current change(4)
LM4041DIM3, LM4041QDIM3,
TA= TJ= 25°C LM4041DIZ, LM4041DIM7 8
LM4041EIM3, LM4041QEIM3,
LM4041EIZ, LM4041EIM7
1 mA IR12 mA mV
LM4041CIM3, LM4041QCIM3, 8
LM4041CIZ, LM4041CIM7
LM4041DIM3, LM4041QDIM3,
TA= TJ= TMIN to TMAX LM4041DIZ, LM4041DIM7 10
LM4041EIM3, LM4041QEIM3,
LM4041EIZ, LM4041EIM7
LM4041CIM3, LM4041QCIM3, 0.5 1.5
LM4041CIZ, LM4041CIM7
Reverse dynamic IR= 1 mA, f = 120 Hz LM4041DIM3, LM4041QDIM3,
ZRΩ
impedance IAC = 0.1 IRLM4041DIZ, LM4041DIM7 2
LM4041EIM3, LM4041QEIM3,
LM4041EIZ, LM4041EIM7
IR= 100 μA
eNWideband noise 20 μVrms
10 Hz f10 kHz
Reverse t = 1000 hrs
breakdown
ΔVRT = 25°C ±0.1°C 120 ppm
voltage long-term IR= 100 μA
stability
Thermal
VHYST ΔT = 40°C to +125°C 0.08%
hysteresis(5)
(4) Load regulation is measured on pulse basis from no load to the specified load current. Ouput changes due to die temperature change
must be taken into account separately.
(5) Thermal hysteresis is defined as the difference in voltage measured at +25°C after cycling to temperature –40°C and the +25°C
measurement after cycling to temperature +125°C.
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6.7 LM4041-N-xx 1.2 Electrical Characteristics (Extended Temperature Range)
All limits TA= TJ= 25°C, unless otherwise specified. The grades C, D, and E designate initial reverse breakdown voltage
tolerance of ±0.5%, ±1.0%, and ±2.0% respectively.
PARAMETER TEST CONDITIONS MIN(1) TYP(2) MAX(1) UNIT
Reverse
breakdown IR= 100 μA 1.225 V
voltage
LM4041CEM3, ±6
LM4041QCEM3
LM4041DEM3,
TA= TJ= 25°C ±12
LM4041QDEM3
VRLM4041EEM3,
Reverse ±25
LM4041QEEM3
breakdown IR= 100 μA mV
voltage LM4041CEM3, ±18.4
error(3) LM4041QCEM3
LM4041DEM3,
TA= TJ= TMIN to TMAX ±31
LM4041QDEM3
LM4041EEM3, ±43
LM4041QEEM3
LM4041CEM3, 45 60
LM4041QCEM3
LM4041DEM3,
TA= TJ= 25°C LM4041QDEM3 65
LM4041EEM3,
Minimum LM4041QEEM3
IRMIN operating μA
LM4041CEM3,
current 68
LM4041QCEM3
LM4041EEM3, LM4041DEM3,
LM4041QEEM3 LM4041QDEM3 73
LM4041EEM3,
LM4041QEEM3
LM4041EEM3, ±20
LM4041QEEM3
TA= TJ= 25°C ±15
LM4041CEM3, ±100
VR LM4041QCEM3
ΔVR/ΔT temperature IR= 1 mA ppm/°C
LM4041DEM3,
TA= TJ= TMIN to TMAX
coefficient(3) LM4041QDEM3 ±150
LM4041EEM3,
LM4041QEEM3
LM4041EEM3, ±15
LM4041QEEM3
(1) Limits are 100% production tested at 25°C. Limits over temperature are ensured through correlation using Statistical Quality Control
(SQC) methods. The limits are used to calculate AOQL.
(2) Typicals are at TJ= 25°C and represent most likely parametric norm.
(3) The overtemperature limit for reverse breakdown voltage tolerance is defined as the room temperature reverse breakdown voltage
tolerance ±[(ΔVRΔT)(max ΔT)(VR)]. Where, ΔVR/ΔT is the VRtemperature coefficient, maxΔT is the maximum difference in
temperature from the reference point of 25 °C to T MAX or TMIN, and VRis the reverse breakdown voltage. The total over-temperature
tolerance for the different grades in the industrial temperature range where maxΔT = 65°C is shown below:
A-grade: ±0.75% = ±0.1% ±100 ppm/°C × 65°C
B-grade: ±0.85% = ±0.2% ±100 ppm/°C × 65°C
C-grade: ±1.15% = ±0.5% ±100 ppm/°C × 65°C
D-grade: ±1.98% = ±1.0% ±150 ppm/°C × 65°C
E-grade: ±2.98% = ±2.0% ±150 ppm/°C × 65°C
The total over-temperature tolerance for the different grades in the extended temperature range where max ΔT = 100 °C is shown
below:
B-grade: ±1.2% = ±0.2% ±100 ppm/°C × 100°C
C-grade: ±1.5% = ±0.5% ±100 ppm/°C × 100°C
D-grade: ±2.5% = ±1.0% ±150 ppm/°C × 100°C
E-grade: ±4.5% = ±2.0% ±150 ppm/°C × 100°C
Therefore, as an example, the A-grade LM4041-N 1.2 has an over-temperature reverse breakdown voltage tolerance of ±1.2 V × 0.75%
= ±9.2 mV.
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LM4041-N-xx 1.2 Electrical Characteristics (Extended Temperature Range) (continued)
All limits TA= TJ= 25°C, unless otherwise specified. The grades C, D, and E designate initial reverse breakdown voltage
tolerance of ±0.5%, ±1.0%, and ±2.0% respectively.
PARAMETER TEST CONDITIONS MIN(1) TYP(2) MAX(1) UNIT
LM4041CEM3, 0.7 1.5
LM4041QCEM3
LM4041DEM3,
TA= TJ= 25°C LM4041QDEM3 2
LM4041EEM3,
LM4041QEEM3
IRMIN IR1.0 mA mV
LM4041CEM3, 2
LM4041QCEM3
LM4041EEM3, LM4041DEM3,
LM4041QEEM3 LM4041QDEM3 2.5
M4041EEM3,
Reverse LM4041QEEM3
breakdown
ΔVR/ΔIRchange with LM4041CEM3, 2.5 6
current(4) LM4041QCEM3
LM4041EEM3, LM4041DEM3,
LM4041QEEM3 LM4041QDEM3 8
LM4041EEM3,
LM4041QEEM3
1 mA IR12 mA mV
LM4041CEM3, 8
LM4041QCEM3
LM4041EEM3, LM4041DEM3,
LM4041QEEM3 LM4041QDEM3 10
LM4041EEM3,
LM4041QEEM3
TA= TJ= 25°C 0.5
LM4041CEM3, 1.5
Reverse LM4041QCEM3
IR= 1 mA, f = 120 Hz,
ZRdynamic Ω
IAC= 0.1 IRLM4041DEM3,
TA= TJ= TMIN to TMAX
impedance LM4041QDEM3 2
LM4041EEM3,
LM4041QEEM3
IR= 100 μA
eNNoise voltage 20 μVrms
10 Hz f10 kHz
Long-term t = 1000 hrs
stability
ΔVRT = 25°C ±0.1°C 120 ppm
(non- IR= 100 μA
cumulative)
Thermal
VHYST ΔT = 40°C to +125°C 0.08%
hysteresis(5)
(4) Load regulation is measured on pulse basis from no load to the specified load current. Ouput changes due to die temperature change
must be taken into account separately.
(5) Thermal hysteresis is defined as the difference in voltage measured at +25°C after cycling to temperature –40°C and the +25°C
measurement after cycling to temperature +125°C.
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6.8 LM4041-N-xx ADJ (Adjustable) Electrical Characteristics (Industrial Temperature Range)
All limits TJ= 25°C, unless otherwise specified (SOT-23, see(1)),
IRMIN IR12 mA, VREF VOUT 10 V. The grades C and D designate initial Reference Voltage Tolerances of ±0.5% and
±1%, respectively for VOUT = 5 V.
PARAMETER TEST CONDITIONS MIN(2) TYP(3) MAX(2) UNIT
Reference IR= 100 μA, VOUT = 5 V 1.233 V
voltage
LM4041CIM3, LM4041QCIM3, ±6.2
LM4041CIZ, LM4041CIM7
TJ= 25°C LM4041DIM3, LM4041QDIM3,
VREF ±12
Reference LM4041DIZ, LM4041DIM7
voltage IR= 100 μA, VOUT = 5 V mV
LM4041CIM3, LM4041QCIM3,
tolerance(4) ±14
LM4041CIZ, LM4041CIM7
TA= TJ= TMIN to TMAX LM4041DIM3, LM4041QDIM3, ±24
LM4041DIZ, LM4041DIM7
LM4041CIM3, LM4041QCIM3, 45 60
LM4041CIZ, LM4041CIM7
TJ= 25°C LM4041DIM3, LM4041QDIM3, 65
Minimum LM4041DIZ, LM4041DIM7
IRMIN operating μA
LM4041CIM3, LM4041QCIM3,
current 65
LM4041CIZ, LM4041CIM7
TA= TJ= TMIN to TMAX LM4041DIM3, LM4041QDIM3, 70
LM4041DIZ, LM4041DIM7
LM4041CIM3, LM4041QCIM3, 0.7 1.5
LM4041CIZ, LM4041CIM7
TJ= 25°C LM4041DIM3, LM4041QDIM3, 2
LM4041DIZ, LM4041DIM7
IRMIN IR1 mA mV
SOT-23: VOUT 1.6 V(1) LM4041CIM3, LM4041QCIM3, 2
LM4041CIZ, LM4041CIM7
TA= TJ= TMIN to TMAX
Reference LM4041DIM3, LM4041QDIM3,
voltage 2.5
LM4041DIZ, LM4041DIM7
change with
ΔVREF/ΔIRoperating LM4041CIM3, LM4041QCIM3, 2 4
current LM4041CIZ, LM4041CIM7
change(5) TJ= 25°C LM4041DIM3, LM4041QDIM3, 6
LM4041DIZ, LM4041DIM7
1 mA IR12 mA mV
SOT-23: VOUT 1.6 V(1) LM4041CIM3, LM4041QCIM3, 6
LM4041CIZ, LM4041CIM7
TA= TJ= TMIN to TMAX LM4041DIM3, LM4041QDIM3, 8
LM4041DIZ, LM4041DIM7
LM4041CIM3, LM4041QCIM3, –1.55 –2
LM4041CIZ, LM4041CIM7
TJ= 25°C
Reference LM4041DIM3, LM4041QDIM3,
voltage –2.5
LM4041DIZ, LM4041DIM7
change with
ΔVREF/ΔVOIR= 1 mA mV/V
output LM4041CIM3, LM4041QCIM3, –2.5
voltage LM4041CIZ, LM4041CIM7
change TA= TJ= TMIN to TMAX LM4041DIM3, LM4041QDIM3, –3
LM4041DIZ, LM4041DIM7
LM4041CIM3, LM4041QCIM3, 60 100
LM4041CIZ, LM4041CIM7
TJ= 25°C
Feedback
IFB LM4041DIM3, LM4041QDIM3, nA
current 150
LM4041DIZ, LM4041DIM7
TA= TJ= TMIN to TMAX 120
(1) When VOUT 1.6 V, the LM4041-N ADJ in the SOT-23 package must operate at reduced IR. This is caused by the series resistance of
the die attach between the die (–) output and the package (–) output pin. See the Output Saturation (SOT-23 only) curve in the Typical
Characteristics section.
(2) Limits are 100% production tested at 25°C. Limits over temperature are ensured through correlation using Statistical Quality Control
(SQC) methods. The limits are used to calculate AOQL.
(3) Typicals are at TJ= 25°C and represent most likely parametric norm.
(4) Reference voltage and temperature coefficient will change with output voltage. See Typical Characteristics curves.
(5) Load regulation is measured on pulse basis from no load to the specified load current. Ouput changes due to die temperature change
must be taken into account separately.
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LM4041-N-xx ADJ (Adjustable) Electrical Characteristics (Industrial Temperature
Range) (continued)
All limits TJ= 25°C, unless otherwise specified (SOT-23, see(1)),
IRMIN IR12 mA, VREF VOUT 10 V. The grades C and D designate initial Reference Voltage Tolerances of ±0.5% and
±1%, respectively for VOUT = 5 V.
PARAMETER TEST CONDITIONS MIN(2) TYP(3) MAX(2) UNIT
IR= 10 mA 20
TJ= 25°C 15
LM4041CIM3,
Average LM4041QCIM3, ±100
reference LM4041CIZ,
TA= TJ=
ΔVREF/ΔT voltage VOUT = 5 V IR= 1 mA LM4041CIM7 ppm/°C
TMIN to
temperature LM4041DIM3,
TMAX
coefficient(4) LM4041QDIM3, ±150
LM4041DIZ,
LM4041DIM7
IR= 100 μA 15
Dynamic IR= 1 mA, f = 120 Hz, IAC = 0.1 IR0.3
ZOUT output Ω
VOUT = VREF VOUT = 10 V 2
impedance
Wideband
eNVOUT = VREF IR= 100 μA 10 Hz f10 kHz 20 μVrms
noise
Reference
voltage t = 1000 hrs, IR= 100 μA,
ΔVREF 120 ppm
long-term T = 25°C ±0.1°C
stability
Thermal
VHYST ΔT = 40°C to +125°C 0.08%
hysteresis(6)
(6) Thermal hysteresis is defined as the difference in voltage measured at +25°C after cycling to temperature –40°C and the +25°C
measurement after cycling to temperature +125°C.
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6.9 LM4041-N-xx ADJ (Adjustable) Electrical Characteristics (Extended Temperature Range)
All limits TJ= 25°C, unless otherwise specified (SOT-23, see(1)), IRMIN IR12 mA, VREF VOUT 10 V. The grades C and D
designate initial Reference Voltage Tolerances of ±0.5% and ±1%, respectively for VOUT = 5 V.
PARAMETER TEST CONDITIONS MIN(2) TYP(3) MAX(2) UNIT
Reference voltage IR= 100 μA, VOUT = 5 V 1.233 V
LM4041CEM3, LM4041QCEM3 ±6.2
TJ= 25°C
VREF LM4041DEM3, LM4041QDEM3 ±12
Reference voltage IR= 100 μA, VOUT =mV
tolerance(4) 5 V LM4041CEM3, LM4041QCEM3 ±18
TA= TJ= TMIN to TMAX LM4041DEM3, LM4041QDEM3 ±30
LM4041CEM3, LM4041QCEM3 45 60
TJ= 25°C LM4041DEM3, LM4041QDEM3 65
Minimum
IRMIN μA
operating current LM4041CEM3, LM4041QCEM3 68
TA= TJ= TMIN to TMAX LM4041DEM3, LM4041QDEM3 73
LM4041CEM3, LM4041QCEM3 0.7 1.5
TJ= 25°C
IRMIN IR1 mA LM4041DEM3, LM4041QDEM3 2
SOT-23: VOUT 1.6 mV
LM4041CEM3, LM4041QCEM3 2
V(1) TA= TJ= TMIN to TMAX
Reference voltage LM4041DEM3, LM4041QDEM3 2.5
change with
ΔVREF/ΔIRoperating LM4041CEM3, LM4041QCEM3 2 8
current change(5) TJ= 25°C
1 mA IR12 mA LM4041DEM3, LM4041QDEM3 10
SOT-23: VOUT 1.6 mV
LM4041CEM3, LM4041QCEM3 6
V(1) TA= TJ= TMIN to TMAX LM4041DEM3, LM4041QDEM3 8
LM4041CEM3, LM4041QCEM3 –1.55 –2
TJ= 25°C
Reference voltage LM4041DEM3, LM4041QDEM3 –2.5
change with
ΔVREF/ΔVOIR= 1 mA mV/V
output voltage LM4041CEM3, LM4041QCEM3 –3
change TA= TJ= TMIN to TMAX LM4041DEM3, LM4041QDEM3 –4
LM4041CEM3, LM4041QCEM3 60 100
TJ= 25°C LM4041DEM3, LM4041QDEM3 150
IFB Feedback current nA
LM4041CEM3, LM4041QCEM3 120
TA= TJ= TMIN to TMAX LM4041DEM3, LM4041QDEM3 200
IR= 10 mA 20
TJ= 25°C 15
Average
reference LM4041CEM3, ±100
ΔVREF/ΔT voltage VOUT = 5 V, IR= 1 mA LM4041QCEM3 ppm/°C
TA= TJ= TMIN to TMAX
temperature LM4041DEM3,
coefficient(4) ±150
LM4041QDEM3
IR= 100 μA 15
IR= 1 mA, f = 120 Hz,
IAC = 0.1 IR0.3
Dynamic output
ZOUT Ω
impedance VOUT = VREF
VOUT = 10 V 2
IR= 100 μA, VOUT = VREF
eNWideband noise 20 μVrms
10 Hz f10 kHz
Reference voltage t = 1000 hrs, IR= 100 μA,
ΔVREF 120 ppm
long-term stability T = 25°C ±0.1°C
Thermal
VHYST ΔT = 40°C to +125°C 0.08%
hysteresis(6)
(1) When VOUT 1.6 V, the LM4041-N ADJ in the SOT-23 package must operate at reduced IR. This is caused by the series resistance of
the die attach between the die (–) output and the package (–) output pin. See the Output Saturation (SOT-23 only) curve in the Typical
Characteristics section.
(2) Limits are 100% production tested at 25°C. Limits over temperature are ensured through correlation using Statistical Quality Control
(SQC) methods. The limits are used to calculate AOQL.
(3) Typicals are at TJ= 25°C and represent most likely parametric norm.
(4) Reference voltage and temperature coefficient will change with output voltage. See Typical Characteristics curves.
(5) Load regulation is measured on pulse basis from no load to the specified load current. Ouput changes due to die temperature change
must be taken into account separately.
(6) Thermal hysteresis is defined as the difference in voltage measured at +25°C after cycling to temperature –40°C and the +25°C
measurement after cycling to temperature +125°C.
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6.10 Typical Characteristics
Figure 2. Output Impedance vs Frequency
Figure 1. Temperature Drift for Different
Average Temperature Coefficient
Figure 3. Noise Voltage Figure 4. Reverse Characteristics
and Minimum Operating Current
Figure 5. Start-Up Characteristics Figure 6. Reference Voltage
vs Output Voltage and Temperature
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Typical Characteristics (continued)
Figure 7. Reference Voltage Figure 8. Feedback Current
vs Temperature and Output Voltage vs Output Voltage and Temperature
Figure 10. Output Impedance vs Frequency
Figure 9. Output Saturation (SOT-23 Only)
Figure 11. Output Impedance vs Frequency Figure 12. Reverse Characteristics
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Typical Characteristics (continued)
Figure 13. Large Signal Response
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7 Parameter Measurement Information
Figure 14. Adjustable Output Test Circuit Figure 15. Line Transient Test Circuit
Figure 16. Start-Up and Shutdown Test Circuit
8 Detailed Description
8.1 Overview
The LM4041 is a precision micro-power shunt voltage reference available in both a fixed and output voltage and
adjustable output voltage options. The part has three different packages available to meet small footprint
requirements. It is also available in five different tolerance grades.
8.2 Functional Block Diagram
*LM4041-N ADJ only
**LM4041-N 1.2 only
8.3 Feature Description
The LM4041 is effectively a precision Zener diode. The part requires a small quiescent current for regulation, and
regulates the output voltage by shunting more or less current to ground, depending on input voltage and load.
The only external component requirement is a resistor between the cathode and the input voltage to set the input
current. An external capacitor can be used on the input or output, but is not required.
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8.4 Device Functional Modes
The LM4041 has fixed output voltage options as well as adjustable output voltage options. The fixed output parts
can only be used in closed-loop operation, as the feedback is internal. The adjustable option parts are most
commonly operated in closed-loop mode, where the feedback node is tied to the output voltage through a
resistor divider. The output voltage will remain as long as lRis between lRMIN and lRMAX; see LM4041-N-xx 1.2
Electrical Characteristics (Industrial Temperature Range). This part can also be used in open-loop mode to act
as a comparator, driving the feedback node from another voltage source.
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9 Application and Implementation
NOTE
Information in the following applications sections is not part of the TI component
specification, and TI does not warrant its accuracy or completeness. TI’s customers are
responsible for determining suitability of components for their purposes. Customers should
validate and test their design implementation to confirm system functionality.
9.1 Application Information
The LM4041-N is a precision micro-power curvature-corrected bandgap shunt voltage reference. For space-
critical applications, the LM4041-N is available in the sub-miniature SOT-23 and SC70 surface-mount package.
The LM4041-N has been designed for stable operation without the need of an external capacitor connected
between the + pin and the pin. If, however, a bypass capacitor is used, the LM4041-N remains stable. Design
effort is further reduced with the choice of either a fixed 1.2 V or an adjustable reverse breakdown voltage. The
minimum operating current is 60 μA for the LM4041-N 1.2 V and the LM4041-N ADJ. Both versions have a
maximum operating current of 12 mA.
LM4041-Ns using the SOT-23 package have pin 3 connected as the (–) output through the die attach interface of
the package. Therefore, pin 3 of the LM4041-N 1.2 must be left floating or connected to pin 2 and pin 3 of the
LM4041-N ADJ pinout.
The LM4041-N devices using the SC70 package have pin 2 connected as the (–) output through the die attach
interface of the package. Therefore, the LM4041-N pin 2 of the LM4041-N 1.2 must be left floating or connected
to pin 1, and the pin 2 of the LM4041-N ADJ is the (–) output.
The typical thermal hysteresis specification is defined as the change in 25°C voltage measured after thermal
cycling. The device is thermal cycled to temperature –40°C and then measured at +25°C. Next the device is
thermal cycled to temperature 125°C and again measured at 25°C. The resulting VOUT delta shift between the
25°C measurements is thermal hysteresis. Thermal hysteresis is common in precision references and is induced
by thermal-mechanical package stress. Changes in environmental storage temperature, operating temperature
and board mounting temperature are all factors that can contribute to thermal hysteresis.
In a conventional shunt regulator application (Figure 17), an external series resistor (RS) is connected between
the supply voltage and the LM4041-N. RSdetermines the current that flows through the load (IL) and the
LM4041-N (IQ). Because load current and supply voltage may vary, RSmust be small enough to supply at least
the minimum acceptable IQto the LM4041-N even when the supply voltage is at its minimum and the load
current is at its maximum value. When the supply voltage is at its maximum and ILis at its minimum, RSmust be
large enough so that the current flowing through the LM4041-N is less than 12 mA.
RSmust be selected based on the supply voltage, (VS), the desired load and operating current, (ILand IQ), and
the reverse breakdown voltage of the LM4041-N, VR.
(1)
The output voltage of the LM4041-N SDJ can be adjusted to any value in the range of 1.24 V through 10 V. It is
a function of the internal reference voltage (VREF) and the ratio of the external feedback resistors as shown in
Figure 19 . The output voltage is found using Equation 2.
VO= VREF[(R2/R1) + 1]
where
VOis the output voltage. (2)
The actual value of the internal VREF is a function of VO. The corrected VREF is determined by Equation 3.
VREF =ΔVO(ΔVREF/ΔVO)+VY
where
VY= 1.240 V
and ΔVO= (VOVY) (3)
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IN _ MAX OUT
S _ MIN
LOAD _ MIN R _ MAX
V V
RI I
-
=
+
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Application Information (continued)
ΔVREF/ΔVOis found in the electrical characteristics tables in the Specifications and is typically 1.55 mV/V. You
can get a more accurate indication of the output voltage by replacing the value of VREF in Equation 2 with the
value found using Equation 3.
NOTE
The actual output voltage can deviate from that predicted using the typical value of
ΔVREF /ΔVOin Equation 3. For C-grade parts, the worst-case ΔVREF /ΔVOis 2.5 mV/V.
For D-grade parts, the worst-case ΔVREF /ΔVOis 3.0 mV/V.
9.2 Typical Applications
9.2.1 Shunt Regulator
Figure 17. Shunt Regulator
9.2.1.1 Design Requirements
VIN > VOUT
Select RSwith Equation 4.
lRMIN < lR< lRMAX = 15 mA (4)
See the electrical characteristics tables in the Specifications for minimum operating current for each voltage
option and grade.
9.2.1.2 Detailed Design Procedure
The resistor RSmust be selected such that current lRremains in the operational region of the part for the entire
VIN range and load current range. At its maximum, the RSmust be small enough for lRto remain above lRMN. The
other extreme is when VIN at its maximum and the load at its minimum; the RSmust be large enough to maintain
lR< lRMAX. If unsure, try using 0.1 mA lR1 mA as starting point. Just remember the value of lRvaries with
input and voltage load.
Use equations Equation 5 and Equation 6 to set RSbetween RS_MIN and RS_MAX.
(5)
(6)
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Typical Applications (continued)
9.2.1.3 Application Curve
Figure 18. Reverse Characteristics and Minimum Operating Current
9.2.2 Adjustable Shunt Regulator
VO= VREF[(R2/R1) + 1]
Figure 19. Adjustable Shunt Regulator
9.2.2.1 Design Requirements
VIN > VOUT
VOUT = 2.5 V
Select RSwith Equation 7.
lRMIN < LR< lRMAX
where
lRMAX = 15 mA (7)
See the electrical characteristics tables in the Specifications for minimum operating current for each voltage
option and grade.
9.2.2.2 Detail Design Procedure
Select a value of RSbased on the same method shown in Detailed Design Procedure.
Set feedback resistors R1and R2for a resistor divider on the equation shown in Application Information that is
reproduced here as Equation 8.
VOUT + VREF × ((R2/R1)+1) (8)
So, for a 2.5-V reference, of VREF is 1.24 V, then R2/R1= 1.01. Select R2= 1.01 kΩand R1= 1.0 kΩ.
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Typical Applications (continued)
9.2.3 Bounded Amplifier
Bounded amplifier reduces saturation-induced delays and can prevent succeeding stage damage. Nominal clamping
voltage is ±VO(the reverse breakdown voltage of the LM4041-N) +2 diode VF.
Figure 20. Bounded Amplifier
9.2.3.1 Design Requirements
Design an amplifier with output clamped at ±11.5 V.
9.2.3.2 Detail Design Procedure
With amplifier rails of ±15 V, the output can be bound to ±11.5 V with the LM4041 adjustable set for 10 V and
two nominal diode voltage drops of 0.7 V.
VOUTBOUND = 2 × VFWD + VZ(9)
VOUTBOUND = 1.4 V + 10 V (10)
Select RS= 15 kΩto keep LRlow. Calculate LRto confirm RSselection.
Use Equation 11, but in this case, take the negative supply into account.
lR= (VIN VOUT) /R (11)
lR= (VIN+ VIN VOUT) / R = (30 V 10 V) / (RS1 + RS2) = 20 V / 30 kΩ= 0.667 mA (12)
This is an acceptable value for lRthat does not draw excessive current, but prevents the part from being starved
for current.
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Typical Applications (continued)
9.2.3.3 Application Curve
Figure 21. Reverse Characteristics
9.2.4 Voltage Level Detector
Figure 22. Voltage Level Detector Figure 23. Voltage Level Detector
9.2.4.1 Design Procedure
Turn on an LED when voltage is above or below –12 V.
9.2.4.2 Detail Design Procedure
Use the LM4041 in an open-loop configuration, where the feedback node is tied to a voltage divider driven by the
input signal. The voltage divider is set such that when the input signal is at –12 V, the feedback node is –1.24 V.
The high gain of the LM4041 will enable it to act like a comparator.
9.2.5 Precision Current Sink and Source
Figure 25. Precision 1-μA to 1-mA Current
Figure 24. Precision 1-μA to 1-mA Current Sink Sources
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9.2.5.1 Design Requirements
Create precision 1-mA current sink and 1-mA current source.
9.2.5.2 Detailed Design Procedure
Set R1 such that the current through the shunt reference, lR, is greater than lRMIN.
lOUT = VOUT / R2
where
VOUT is the voltage drop across the shunt reference (13)
In this case, lOUT = 1.2 / R2.
9.2.6 100-mA Current Source
*D1 can be any LED, VF= 1.5 V to 2.2 V at 3 mA. D1 may act as an indicator. D1 will be on if ITHRESHOLD falls below
the threshold current, except with I = 0.
Figure 26. Current Source
9.2.6.1 Design Requirements
Create 100-mA current source.
9.2.6.2 Detailed Design Procedure
lOUT = VOUT / R1
where
VOUT is the voltage drop across the shunt reference. (14)
In this case, lOUT = 1.24 / R1.
24 Submit Documentation Feedback Copyright © 1999–2016, Texas Instruments Incorporated
Product Folder Links: LM4041-N LM4041-N-Q1
LM4041-N
,
LM4041-N-Q1
www.ti.com
SNOS641G OCTOBER 1999REVISED JANUARY 2016
9.2.7 LM4041 in Clamp Circuits
Figure 27. Fast Positive Clamp 2.4 V + VD1 Figure 28. Bidirectional Clamp ±2.4 V
Figure 29. Bidirectional Adjustable Clamp ±18 V to Figure 30. Bidirectional Adjustable Clamp ±2.4 V to
±2.4 V ±6 V
9.2.7.1 Design Requirements
Create adjustable clamping circuits using the LM4041.
9.2.7.2 Detailed Design Procedure
Use the LM4041 in open-loop, as a 1.24-V diode that can be on or off based on the voltage at the feedback. See
Figure 27 through Figure 30 for examples.
Copyright © 1999–2016, Texas Instruments Incorporated Submit Documentation Feedback 25
Product Folder Links: LM4041-N LM4041-N-Q1
LM4041-N
,
LM4041-N-Q1
SNOS641G OCTOBER 1999REVISED JANUARY 2016
www.ti.com
9.2.8 Floating Current Detector
Figure 31. Simple Floating Current Detector
Figure 32. Precision Floating Current Detector
9.2.8.1 Design Requirement
Create a floating current detector using the LM4041.
9.2.8.2 Detailed Design Procedure
Use the LM4041 as a voltage dependent diode, which turns on and off based on the voltage drop across R1.
See Figure 31 and Figure 32 for examples.
26 Submit Documentation Feedback Copyright © 1999–2016, Texas Instruments Incorporated
Product Folder Links: LM4041-N LM4041-N-Q1
LM4041-N
,
LM4041-N-Q1
www.ti.com
SNOS641G OCTOBER 1999REVISED JANUARY 2016
10 Power Supply Recommendations
While a bypass capacitor is not required on the input voltage line, TI recommends reducing noise on the input
which could affect the output. A 0.1-µF ceramic capacitor or larger is recommended.
11 Layout
11.1 Layout Guidelines
Place external components as close to the device as possible. Place RSclose the cathode, as well as the input
bypass capacitor, if used. Keep feedback resistor close the device whenever possible.
11.2 Layout Example
Figure 33. Recommended Layout
Copyright © 1999–2016, Texas Instruments Incorporated Submit Documentation Feedback 27
Product Folder Links: LM4041-N LM4041-N-Q1
LM4041-N
,
LM4041-N-Q1
SNOS641G OCTOBER 1999REVISED JANUARY 2016
www.ti.com
12 Device and Documentation Support
12.1 Related Links
The table below lists quick access links. Categories include technical documents, support and community
resources, tools and software, and quick access to sample or buy.
Table 1. Related Links
TECHNICAL TOOLS & SUPPORT &
PARTS PRODUCT FOLDER SAMPLE & BUY DOCUMENTS SOFTWARE COMMUNITY
LM4041-N Click here Click here Click here Click here Click here
LM4041-N-Q1 Click here Click here Click here Click here Click here
12.2 Community Resources
The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective
contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of
Use.
TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration
among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help
solve problems with fellow engineers.
Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and
contact information for technical support.
12.3 Trademarks
E2E is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
12.4 Electrostatic Discharge Caution
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
12.5 Glossary
SLYZ022 TI Glossary.
This glossary lists and explains terms, acronyms, and definitions.
13 Mechanical, Packaging, and Orderable Information
The following pages include mechanical, packaging, and orderable information. This information is the most
current data available for the designated devices. This data is subject to change without notice and revision of
this document. For browser-based versions of this data sheet, refer to the left-hand navigation.
28 Submit Documentation Feedback Copyright © 1999–2016, Texas Instruments Incorporated
Product Folder Links: LM4041-N LM4041-N-Q1
PACKAGE OPTION ADDENDUM
www.ti.com 9-Mar-2018
Addendum-Page 1
PACKAGING INFORMATION
Orderable Device Status
(1)
Package Type Package
Drawing Pins Package
Qty Eco Plan
(2)
Lead/Ball Finish
(6)
MSL Peak Temp
(3)
Op Temp (°C) Device Marking
(4/5)
Samples
LM4041AIM3-1.2 NRND SOT-23 DBZ 3 1000 TBD Call TI Call TI -40 to 85 R1A
LM4041AIM3-1.2/NOPB ACTIVE SOT-23 DBZ 3 1000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 85 R1A
LM4041AIM3X-1.2/NOPB ACTIVE SOT-23 DBZ 3 3000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 85 R1A
LM4041AIZ-1.2/NOPB ACTIVE TO-92 LP 3 1800 Green (RoHS
& no Sb/Br) CU SN N / A for Pkg Type -40 to 85 4041A
IZ1.2
LM4041BIM3-1.2 NRND SOT-23 DBZ 3 1000 TBD Call TI Call TI -40 to 85 R1B
LM4041BIM3-1.2/NOPB ACTIVE SOT-23 DBZ 3 1000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 85 R1B
LM4041BIM3X-1.2/NOPB ACTIVE SOT-23 DBZ 3 3000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 85 R1B
LM4041BIM7-1.2 NRND SC70 DCK 5 1000 TBD Call TI Call TI -40 to 85 R1B
LM4041BIM7-1.2/NOPB ACTIVE SC70 DCK 5 1000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 85 R1B
LM4041BIM7X-1.2/NOPB ACTIVE SC70 DCK 5 3000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 85 R1B
LM4041BIZ-1.2/NOPB ACTIVE TO-92 LP 3 1800 Green (RoHS
& no Sb/Br) CU SN N / A for Pkg Type -40 to 85 4041B
IZ1.2
LM4041CEM3-1.2 NRND SOT-23 DBZ 3 1000 TBD Call TI Call TI -40 to 125 R1C
LM4041CEM3-1.2/NOPB ACTIVE SOT-23 DBZ 3 1000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 R1C
LM4041CEM3-ADJ NRND SOT-23 DBZ 3 1000 TBD Call TI Call TI -40 to 125 RAC
LM4041CEM3-ADJ/NOPB ACTIVE SOT-23 DBZ 3 1000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 RAC
LM4041CEM3X-1.2/NOPB ACTIVE SOT-23 DBZ 3 3000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 R1C
LM4041CEM3X-ADJ NRND SOT-23 DBZ 3 3000 TBD Call TI Call TI -40 to 125 RAC
LM4041CEM3X-ADJ/NOPB ACTIVE SOT-23 DBZ 3 3000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 RAC
LM4041CIM3-1.2 NRND SOT-23 DBZ 3 1000 TBD Call TI Call TI -40 to 85 R1C
LM4041CIM3-1.2/NOPB ACTIVE SOT-23 DBZ 3 1000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 85 R1C
PACKAGE OPTION ADDENDUM
www.ti.com 9-Mar-2018
Addendum-Page 2
Orderable Device Status
(1)
Package Type Package
Drawing Pins Package
Qty Eco Plan
(2)
Lead/Ball Finish
(6)
MSL Peak Temp
(3)
Op Temp (°C) Device Marking
(4/5)
Samples
LM4041CIM3-ADJ NRND SOT-23 DBZ 3 1000 TBD Call TI Call TI -40 to 85 RAC
LM4041CIM3-ADJ/NOPB ACTIVE SOT-23 DBZ 3 1000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 85 RAC
LM4041CIM3X-1.2 NRND SOT-23 DBZ 3 3000 TBD Call TI Call TI -40 to 85 R1C
LM4041CIM3X-1.2/NOPB ACTIVE SOT-23 DBZ 3 3000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 85 R1C
LM4041CIM3X-ADJ/NOPB ACTIVE SOT-23 DBZ 3 3000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 85 RAC
LM4041CIM7-1.2/NOPB ACTIVE SC70 DCK 5 1000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 85 R1C
LM4041CIM7-ADJ NRND SC70 DCK 5 1000 TBD Call TI Call TI -40 to 85 RAC
LM4041CIM7-ADJ/NOPB ACTIVE SC70 DCK 5 1000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 85 RAC
LM4041CIM7X-1.2/NOPB ACTIVE SC70 DCK 5 3000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 85 R1C
LM4041CIM7X-ADJ/NOPB ACTIVE SC70 DCK 5 3000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 85 RAC
LM4041CIZ-1.2/NOPB ACTIVE TO-92 LP 3 1800 Green (RoHS
& no Sb/Br) CU SN N / A for Pkg Type -40 to 85 4041C
IZ1.2
LM4041CIZ-ADJ/NOPB ACTIVE TO-92 LP 3 1800 Green (RoHS
& no Sb/Br) CU SN N / A for Pkg Type -40 to 85 4041C
IZADJ
LM4041DEM3-1.2/NOPB ACTIVE SOT-23 DBZ 3 1000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 R1D
LM4041DEM3-ADJ NRND SOT-23 DBZ 3 1000 TBD Call TI Call TI -40 to 125 RAD
LM4041DEM3-ADJ/NOPB ACTIVE SOT-23 DBZ 3 1000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 RAD
LM4041DEM3X-1.2/NOPB ACTIVE SOT-23 DBZ 3 3000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 R1D
LM4041DEM3X-ADJ/NOPB ACTIVE SOT-23 DBZ 3 3000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 RAD
LM4041DIM3-1.2 NRND SOT-23 DBZ 3 1000 TBD Call TI Call TI -40 to 85 R1D
LM4041DIM3-1.2/NOPB ACTIVE SOT-23 DBZ 3 1000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 85 R1D
LM4041DIM3-ADJ NRND SOT-23 DBZ 3 1000 TBD Call TI Call TI -40 to 85 RAD
PACKAGE OPTION ADDENDUM
www.ti.com 9-Mar-2018
Addendum-Page 3
Orderable Device Status
(1)
Package Type Package
Drawing Pins Package
Qty Eco Plan
(2)
Lead/Ball Finish
(6)
MSL Peak Temp
(3)
Op Temp (°C) Device Marking
(4/5)
Samples
LM4041DIM3-ADJ/NOPB ACTIVE SOT-23 DBZ 3 1000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 85 RAD
LM4041DIM3X-1.2/NOPB ACTIVE SOT-23 DBZ 3 3000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 85 R1D
LM4041DIM3X-ADJ NRND SOT-23 DBZ 3 3000 TBD Call TI Call TI -40 to 85 RAD
LM4041DIM3X-ADJ/NOPB ACTIVE SOT-23 DBZ 3 3000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 85 RAD
LM4041DIM7-1.2/NOPB ACTIVE SC70 DCK 5 1000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 85 R1D
LM4041DIM7-ADJ/NOPB ACTIVE SC70 DCK 5 1000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 85 RAD
LM4041DIM7X-1.2/NOPB ACTIVE SC70 DCK 5 3000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 85 R1D
LM4041DIM7X-ADJ/NOPB ACTIVE SC70 DCK 5 3000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 85 RAD
LM4041DIZ-1.2/NOPB ACTIVE TO-92 LP 3 1800 Green (RoHS
& no Sb/Br) CU SN N / A for Pkg Type -40 to 85 4041D
IZ1.2
LM4041DIZ-ADJ/LFT1 ACTIVE TO-92 LP 3 2000 Green (RoHS
& no Sb/Br) CU SN N / A for Pkg Type 4041D
IZADJ
LM4041DIZ-ADJ/NOPB ACTIVE TO-92 LP 3 1800 Green (RoHS
& no Sb/Br) CU SN N / A for Pkg Type -40 to 85 4041D
IZADJ
LM4041EEM3-1.2 NRND SOT-23 DBZ 3 1000 TBD Call TI Call TI -40 to 125 R1E
LM4041EEM3-1.2/NOPB ACTIVE SOT-23 DBZ 3 1000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 R1E
LM4041EEM3X-1.2 NRND SOT-23 DBZ 3 3000 TBD Call TI Call TI -40 to 125 R1E
LM4041EEM3X-1.2/NOPB ACTIVE SOT-23 DBZ 3 3000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 R1E
LM4041EIM3-1.2 NRND SOT-23 DBZ 3 1000 TBD Call TI Call TI -40 to 85 R1E
LM4041EIM3-1.2/NOPB ACTIVE SOT-23 DBZ 3 1000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 85 R1E
LM4041EIM3X-1.2/NOPB ACTIVE SOT-23 DBZ 3 3000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 85 R1E
LM4041EIM7-1.2/NOPB ACTIVE SC70 DCK 5 1000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 85 R1E
LM4041EIM7X-1.2/NOPB ACTIVE SC70 DCK 5 3000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 85 R1E
PACKAGE OPTION ADDENDUM
www.ti.com 9-Mar-2018
Addendum-Page 4
Orderable Device Status
(1)
Package Type Package
Drawing Pins Package
Qty Eco Plan
(2)
Lead/Ball Finish
(6)
MSL Peak Temp
(3)
Op Temp (°C) Device Marking
(4/5)
Samples
LM4041QAIM3-1.2/NO ACTIVE SOT-23 DBZ 3 1000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 85 RQA
LM4041QBIM3-1.2/NO ACTIVE SOT-23 DBZ 3 1000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 85 RQB
LM4041QCEM3-1.2NO ACTIVE SOT-23 DBZ 3 1000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 RQC
LM4041QCEM3-ADJ/NO ACTIVE SOT-23 DBZ 3 1000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 RZC
LM4041QCEM3X-1.2NO ACTIVE SOT-23 DBZ 3 3000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 RQC
LM4041QCIM3-1.2/NO ACTIVE SOT-23 DBZ 3 1000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 RQC
LM4041QCIM3-ADJ/NO ACTIVE SOT-23 DBZ 3 1000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 RZC
LM4041QDEM3-1.2/NO ACTIVE SOT-23 DBZ 3 1000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 RQD
LM4041QDEM3-ADJ/NO ACTIVE SOT-23 DBZ 3 1000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 RZD
LM4041QDIM3-1.2/NO ACTIVE SOT-23 DBZ 3 1000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 RQD
LM4041QDIM3-ADJ/NO ACTIVE SOT-23 DBZ 3 1000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 RZD
LM4041QEEM3-1.2/NO ACTIVE SOT-23 DBZ 3 1000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 RQE
LM4041QEEM3X-1.2NO ACTIVE SOT-23 DBZ 3 3000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 RQE
LM4041QEIM3-1.2/NO ACTIVE SOT-23 DBZ 3 1000 Green (RoHS
& no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 RQE
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
PACKAGE OPTION ADDENDUM
www.ti.com 9-Mar-2018
Addendum-Page 5
(2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of <=1000ppm threshold. Antimony trioxide based
flame retardants must also meet the <=1000ppm threshold requirement.
(3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
(4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.
(5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation
of the previous line and the two combined represent the entire Device Marking for that device.
(6) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish
value exceeds the maximum column width.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
OTHER QUALIFIED VERSIONS OF LM4041-N, LM4041-N-Q1 :
Catalog: LM4041-N
Automotive: LM4041-N-Q1
NOTE: Qualified Version Definitions:
Catalog - TI's standard catalog product
Automotive - Q100 devices qualified for high-reliability automotive applications targeting zero defects
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device Package
Type Package
Drawing Pins SPQ Reel
Diameter
(mm)
Reel
Width
W1 (mm)
A0
(mm) B0
(mm) K0
(mm) P1
(mm) W
(mm) Pin1
Quadrant
LM4041AIM3-1.2 SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041AIM3-1.2/NOPB SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041AIM3X-1.2/NOPB SOT-23 DBZ 3 3000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041BIM3-1.2 SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041BIM3-1.2/NOPB SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041BIM3X-1.2/NOPB SOT-23 DBZ 3 3000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041BIM7-1.2 SC70 DCK 5 1000 178.0 8.4 2.25 2.45 1.2 4.0 8.0 Q3
LM4041BIM7-1.2/NOPB SC70 DCK 5 1000 178.0 8.4 2.25 2.45 1.2 4.0 8.0 Q3
LM4041BIM7X-1.2/NOPB SC70 DCK 5 3000 178.0 8.4 2.25 2.45 1.2 4.0 8.0 Q3
LM4041CEM3-1.2 SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041CEM3-1.2/NOPB SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041CEM3-ADJ SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041CEM3-ADJ/NOPB SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041CEM3X-1.2/NOPB SOT-23 DBZ 3 3000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041CEM3X-ADJ SOT-23 DBZ 3 3000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041CEM3X-ADJ/NOP
BSOT-23 DBZ 3 3000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041CIM3-1.2 SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
PACKAGE MATERIALS INFORMATION
www.ti.com 27-Sep-2017
Pack Materials-Page 1
Device Package
Type Package
Drawing Pins SPQ Reel
Diameter
(mm)
Reel
Width
W1 (mm)
A0
(mm) B0
(mm) K0
(mm) P1
(mm) W
(mm) Pin1
Quadrant
LM4041CIM3-1.2/NOPB SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041CIM3-ADJ SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041CIM3-ADJ/NOPB SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041CIM3X-1.2 SOT-23 DBZ 3 3000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041CIM3X-1.2/NOPB SOT-23 DBZ 3 3000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041CIM3X-ADJ/NOP
BSOT-23 DBZ 3 3000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041CIM7-1.2/NOPB SC70 DCK 5 1000 178.0 8.4 2.25 2.45 1.2 4.0 8.0 Q3
LM4041CIM7-ADJ SC70 DCK 5 1000 178.0 8.4 2.25 2.45 1.2 4.0 8.0 Q3
LM4041CIM7-ADJ/NOPB SC70 DCK 5 1000 178.0 8.4 2.25 2.45 1.2 4.0 8.0 Q3
LM4041CIM7X-1.2/NOPB SC70 DCK 5 3000 178.0 8.4 2.25 2.45 1.2 4.0 8.0 Q3
LM4041CIM7X-ADJ/NOP
BSC70 DCK 5 3000 178.0 8.4 2.25 2.45 1.2 4.0 8.0 Q3
LM4041DEM3-1.2/NOPB SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041DEM3-ADJ SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041DEM3-ADJ/NOPB SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041DEM3X-1.2/NOPB SOT-23 DBZ 3 3000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041DEM3X-ADJ/NOP
BSOT-23 DBZ 3 3000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041DIM3-1.2 SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041DIM3-1.2/NOPB SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041DIM3-ADJ SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041DIM3-ADJ/NOPB SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041DIM3X-1.2/NOPB SOT-23 DBZ 3 3000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041DIM3X-ADJ SOT-23 DBZ 3 3000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041DIM3X-ADJ/NOP
BSOT-23 DBZ 3 3000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041DIM7-1.2/NOPB SC70 DCK 5 1000 178.0 8.4 2.25 2.45 1.2 4.0 8.0 Q3
LM4041DIM7-ADJ/NOPB SC70 DCK 5 1000 178.0 8.4 2.25 2.45 1.2 4.0 8.0 Q3
LM4041DIM7X-1.2/NOPB SC70 DCK 5 3000 178.0 8.4 2.25 2.45 1.2 4.0 8.0 Q3
LM4041DIM7X-ADJ/NOP
BSC70 DCK 5 3000 178.0 8.4 2.25 2.45 1.2 4.0 8.0 Q3
LM4041EEM3-1.2 SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041EEM3-1.2/NOPB SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041EEM3X-1.2 SOT-23 DBZ 3 3000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041EEM3X-1.2/NOPB SOT-23 DBZ 3 3000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041EIM3-1.2 SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041EIM3-1.2/NOPB SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041EIM3X-1.2/NOPB SOT-23 DBZ 3 3000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041EIM7-1.2/NOPB SC70 DCK 5 1000 178.0 8.4 2.25 2.45 1.2 4.0 8.0 Q3
LM4041EIM7X-1.2/NOPB SC70 DCK 5 3000 178.0 8.4 2.25 2.45 1.2 4.0 8.0 Q3
LM4041QAIM3-1.2/NO SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041QBIM3-1.2/NO SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041QCEM3-1.2NO SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
PACKAGE MATERIALS INFORMATION
www.ti.com 27-Sep-2017
Pack Materials-Page 2
Device Package
Type Package
Drawing Pins SPQ Reel
Diameter
(mm)
Reel
Width
W1 (mm)
A0
(mm) B0
(mm) K0
(mm) P1
(mm) W
(mm) Pin1
Quadrant
LM4041QCEM3-ADJ/NO SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041QCEM3X-1.2NO SOT-23 DBZ 3 3000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041QCIM3-1.2/NO SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041QCIM3-ADJ/NO SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041QDEM3-1.2/NO SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041QDEM3-ADJ/NO SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041QDIM3-1.2/NO SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041QDIM3-ADJ/NO SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041QEEM3-1.2/NO SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041QEEM3X-1.2NO SOT-23 DBZ 3 3000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
LM4041QEIM3-1.2/NO SOT-23 DBZ 3 1000 178.0 8.4 3.3 2.9 1.22 4.0 8.0 Q3
*All dimensions are nominal
Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm)
LM4041AIM3-1.2 SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041AIM3-1.2/NOPB SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041AIM3X-1.2/NOPB SOT-23 DBZ 3 3000 210.0 185.0 35.0
LM4041BIM3-1.2 SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041BIM3-1.2/NOPB SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041BIM3X-1.2/NOPB SOT-23 DBZ 3 3000 210.0 185.0 35.0
PACKAGE MATERIALS INFORMATION
www.ti.com 27-Sep-2017
Pack Materials-Page 3
Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm)
LM4041BIM7-1.2 SC70 DCK 5 1000 210.0 185.0 35.0
LM4041BIM7-1.2/NOPB SC70 DCK 5 1000 210.0 185.0 35.0
LM4041BIM7X-1.2/NOPB SC70 DCK 5 3000 210.0 185.0 35.0
LM4041CEM3-1.2 SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041CEM3-1.2/NOPB SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041CEM3-ADJ SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041CEM3-ADJ/NOPB SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041CEM3X-1.2/NOPB SOT-23 DBZ 3 3000 210.0 185.0 35.0
LM4041CEM3X-ADJ SOT-23 DBZ 3 3000 210.0 185.0 35.0
LM4041CEM3X-ADJ/NOP
BSOT-23 DBZ 3 3000 210.0 185.0 35.0
LM4041CIM3-1.2 SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041CIM3-1.2/NOPB SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041CIM3-ADJ SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041CIM3-ADJ/NOPB SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041CIM3X-1.2 SOT-23 DBZ 3 3000 210.0 185.0 35.0
LM4041CIM3X-1.2/NOPB SOT-23 DBZ 3 3000 210.0 185.0 35.0
LM4041CIM3X-ADJ/NOPB SOT-23 DBZ 3 3000 210.0 185.0 35.0
LM4041CIM7-1.2/NOPB SC70 DCK 5 1000 210.0 185.0 35.0
LM4041CIM7-ADJ SC70 DCK 5 1000 210.0 185.0 35.0
LM4041CIM7-ADJ/NOPB SC70 DCK 5 1000 210.0 185.0 35.0
LM4041CIM7X-1.2/NOPB SC70 DCK 5 3000 210.0 185.0 35.0
LM4041CIM7X-ADJ/NOPB SC70 DCK 5 3000 210.0 185.0 35.0
LM4041DEM3-1.2/NOPB SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041DEM3-ADJ SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041DEM3-ADJ/NOPB SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041DEM3X-1.2/NOPB SOT-23 DBZ 3 3000 210.0 185.0 35.0
LM4041DEM3X-ADJ/NOP
BSOT-23 DBZ 3 3000 210.0 185.0 35.0
LM4041DIM3-1.2 SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041DIM3-1.2/NOPB SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041DIM3-ADJ SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041DIM3-ADJ/NOPB SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041DIM3X-1.2/NOPB SOT-23 DBZ 3 3000 210.0 185.0 35.0
LM4041DIM3X-ADJ SOT-23 DBZ 3 3000 210.0 185.0 35.0
LM4041DIM3X-ADJ/NOPB SOT-23 DBZ 3 3000 210.0 185.0 35.0
LM4041DIM7-1.2/NOPB SC70 DCK 5 1000 210.0 185.0 35.0
LM4041DIM7-ADJ/NOPB SC70 DCK 5 1000 210.0 185.0 35.0
LM4041DIM7X-1.2/NOPB SC70 DCK 5 3000 210.0 185.0 35.0
LM4041DIM7X-ADJ/NOPB SC70 DCK 5 3000 210.0 185.0 35.0
LM4041EEM3-1.2 SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041EEM3-1.2/NOPB SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041EEM3X-1.2 SOT-23 DBZ 3 3000 210.0 185.0 35.0
LM4041EEM3X-1.2/NOPB SOT-23 DBZ 3 3000 210.0 185.0 35.0
PACKAGE MATERIALS INFORMATION
www.ti.com 27-Sep-2017
Pack Materials-Page 4
Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm)
LM4041EIM3-1.2 SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041EIM3-1.2/NOPB SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041EIM3X-1.2/NOPB SOT-23 DBZ 3 3000 210.0 185.0 35.0
LM4041EIM7-1.2/NOPB SC70 DCK 5 1000 210.0 185.0 35.0
LM4041EIM7X-1.2/NOPB SC70 DCK 5 3000 210.0 185.0 35.0
LM4041QAIM3-1.2/NO SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041QBIM3-1.2/NO SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041QCEM3-1.2NO SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041QCEM3-ADJ/NO SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041QCEM3X-1.2NO SOT-23 DBZ 3 3000 210.0 185.0 35.0
LM4041QCIM3-1.2/NO SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041QCIM3-ADJ/NO SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041QDEM3-1.2/NO SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041QDEM3-ADJ/NO SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041QDIM3-1.2/NO SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041QDIM3-ADJ/NO SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041QEEM3-1.2/NO SOT-23 DBZ 3 1000 210.0 185.0 35.0
LM4041QEEM3X-1.2NO SOT-23 DBZ 3 3000 210.0 185.0 35.0
LM4041QEIM3-1.2/NO SOT-23 DBZ 3 1000 210.0 185.0 35.0
PACKAGE MATERIALS INFORMATION
www.ti.com 27-Sep-2017
Pack Materials-Page 5
www.ti.com
PACKAGE OUTLINE
3X 2.67
2.03
5.21
4.44
5.34
4.32
3X
12.7 MIN
2X 1.27 0.13
3X 0.55
0.38
4.19
3.17
3.43 MIN
3X 0.43
0.35
(2.54)
NOTE 3
2X
2.6 0.2
2X
4 MAX
SEATING
PLANE
6X
0.076 MAX
(0.51) TYP
(1.5) TYP
TO-92 - 5.34 mm max heightLP0003A
TO-92
4215214/B 04/2017
NOTES:
1. All linear dimensions are in millimeters. Any dimensions in parenthesis are for reference only. Dimensioning and tolerancing
per ASME Y14.5M.
2. This drawing is subject to change without notice.
3. Lead dimensions are not controlled within this area.
4. Reference JEDEC TO-226, variation AA.
5. Shipping method:
a. Straight lead option available in bulk pack only.
b. Formed lead option available in tape and reel or ammo pack.
c. Specific products can be offered in limited combinations of shipping medium and lead options.
d. Consult product folder for more information on available options.
EJECTOR PIN
OPTIONAL
PLANE
SEATING
STRAIGHT LEAD OPTION
321
SCALE 1.200
FORMED LEAD OPTION
OTHER DIMENSIONS IDENTICAL
TO STRAIGHT LEAD OPTION
SCALE 1.200
www.ti.com
EXAMPLE BOARD LAYOUT
0.05 MAX
ALL AROUND
TYP
(1.07)
(1.5) 2X (1.5)
2X (1.07)
(1.27)
(2.54)
FULL R
TYP
( 1.4)0.05 MAX
ALL AROUND
TYP
(2.6)
(5.2)
(R0.05) TYP
3X ( 0.9) HOLE
2X ( 1.4)
METAL
3X ( 0.85) HOLE
(R0.05) TYP
4215214/B 04/2017
TO-92 - 5.34 mm max heightLP0003A
TO-92
LAND PATTERN EXAMPLE
FORMED LEAD OPTION
NON-SOLDER MASK DEFINED
SCALE:15X
SOLDER MASK
OPENING
METAL
2X
SOLDER MASK
OPENING
123
LAND PATTERN EXAMPLE
STRAIGHT LEAD OPTION
NON-SOLDER MASK DEFINED
SCALE:15X
METAL
TYP
SOLDER MASK
OPENING
2X
SOLDER MASK
OPENING
2X
METAL
12 3
www.ti.com
TAPE SPECIFICATIONS
19.0
17.5
13.7
11.7
11.0
8.5
0.5 MIN
TYP-4.33.7
9.75
8.50
TYP
2.9
2.4 6.75
5.95
13.0
12.4
(2.5) TYP
16.5
15.5
32
23
4215214/B 04/2017
TO-92 - 5.34 mm max heightLP0003A
TO-92
FOR FORMED LEAD OPTION PACKAGE
4203227/C
www.ti.com
PACKAGE OUTLINE
C
TYP
0.20
0.08
0.25
2.64
2.10 1.12 MAX
TYP
0.10
0.01
3X 0.5
0.3
TYP
0.6
0.2
1.9
0.95
TYP-80
A
3.04
2.80
B
1.4
1.2
(0.95)
SOT-23 - 1.12 mm max heightDBZ0003A
SMALL OUTLINE TRANSISTOR
4214838/C 04/2017
NOTES:
1. All linear dimensions are in millimeters. Any dimensions in parenthesis are for reference only. Dimensioning and tolerancing
per ASME Y14.5M.
2. This drawing is subject to change without notice.
3. Reference JEDEC registration TO-236, except minimum foot length.
0.2 C A B
1
3
2
INDEX AREA
PIN 1
GAGE PLANE
SEATING PLANE
0.1 C
SCALE 4.000
www.ti.com
EXAMPLE BOARD LAYOUT
0.07 MAX
ALL AROUND 0.07 MIN
ALL AROUND
3X (1.3)
3X (0.6)
(2.1)
2X (0.95)
(R0.05) TYP
4214838/C 04/2017
SOT-23 - 1.12 mm max heightDBZ0003A
SMALL OUTLINE TRANSISTOR
NOTES: (continued)
4. Publication IPC-7351 may have alternate designs.
5. Solder mask tolerances between and around signal pads can vary based on board fabrication site.
SYMM
LAND PATTERN EXAMPLE
SCALE:15X
PKG
1
3
2
SOLDER MASK
OPENING
METAL UNDER
SOLDER MASK
SOLDER MASK
DEFINED
METAL
SOLDER MASK
OPENING
NON SOLDER MASK
DEFINED
(PREFERRED)
SOLDER MASK DETAILS
www.ti.com
EXAMPLE STENCIL DESIGN
(2.1)
2X(0.95)
3X (1.3)
3X (0.6)
(R0.05) TYP
SOT-23 - 1.12 mm max heightDBZ0003A
SMALL OUTLINE TRANSISTOR
4214838/C 04/2017
NOTES: (continued)
6. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. IPC-7525 may have alternate
design recommendations.
7. Board assembly site may have different recommendations for stencil design.
SOLDER PASTE EXAMPLE
BASED ON 0.125 THICK STENCIL
SCALE:15X
SYMM
PKG
1
3
2
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Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Texas Instruments:
LM4041AIM3-1.2 LM4041AIM3-1.2/NOPB LM4041AIM3X-1.2/NOPB LM4041BIM3-1.2 LM4041BIM3-1.2/NOPB
LM4041BIM3X-1.2/NOPB LM4041BIM7-1.2 LM4041BIM7-1.2/NOPB LM4041BIM7X-1.2 LM4041BIM7X-1.2/NOPB
LM4041CEM3-1.2 LM4041CEM3-1.2/NOPB LM4041CEM3-ADJ LM4041CEM3-ADJ/NOPB LM4041CEM3X-
1.2/NOPB LM4041CEM3X-ADJ LM4041CEM3X-ADJ/NOPB LM4041CIM3-1.2 LM4041CIM3-1.2/NOPB
LM4041CIM3-ADJ LM4041CIM3-ADJ/NOPB LM4041CIM3X-1.2 LM4041CIM3X-1.2/NOPB LM4041CIM3X-ADJ
LM4041CIM3X-ADJ/NOPB LM4041CIM7-1.2/NOPB LM4041CIM7-ADJ LM4041CIM7-ADJ/NOPB LM4041CIM7X-
1.2/NOPB LM4041CIM7X-ADJ LM4041CIM7X-ADJ/NOPB LM4041CIZ-1.2/NOPB LM4041DEM3-1.2/NOPB
LM4041DEM3-ADJ LM4041DEM3-ADJ/NOPB LM4041DEM3X-1.2/NOPB LM4041DEM3X-ADJ/NOPB LM4041DIM3-
1.2 LM4041DIM3-1.2/NOPB LM4041DIM3-ADJ LM4041DIM3-ADJ/NOPB LM4041DIM3X-1.2 LM4041DIM3X-
1.2/NOPB LM4041DIM3X-ADJ LM4041DIM3X-ADJ/NOPB LM4041DIM7-1.2/NOPB LM4041DIM7-ADJ/NOPB
LM4041DIM7X-1.2/NOPB LM4041DIM7X-ADJ/NOPB LM4041DIZ-ADJ/LFT1 LM4041DIZ-ADJ/NOPB LM4041EEM3-
1.2 LM4041EEM3-1.2/NOPB LM4041EEM3X-1.2 LM4041EEM3X-1.2/NOPB LM4041EIM3-1.2 LM4041EIM3-
1.2/NOPB LM4041EIM3X-1.2 LM4041EIM3X-1.2/NOPB LM4041EIM7-1.2 LM4041EIM7-1.2/NOPB LM4041EIM7X-
1.2/NOPB LM4041BIZ-1.2/NOPB LM4041CIZ-ADJ/NOPB LM4041AIZ-1.2/NOPB LM4041DIZ-1.2/NOPB