UNISONIC TECHNOLOGIES CO., LTD
81CXXX/81NXXX CMOS IC
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Copyright © 2008 Unisonic Technologies Co., Ltd QW-R502-039,L
VOLTAGE DETECTORS WITH
BUILT-IN DELAY TIME
DESCRIPTION
The UTC 81CXXX and 81NXXX series are good
performance voltage detector and manufactured by CMOS
technologies with highly accurate, low power consumption. A
delay circuit is built-in to each detector, therefore, peripherals
are unnecessary and high density mounting is possible. Detect
voltage is extremely accurate with minimal temperature drift.
Both CMOS and N-channel open drain output configurations are
available.
FEATURES
*Highly Accurate : Detect voltage ± 2%
*Built-In Delay time : 1ms ~ 50ms,
50ms ~ 200ms,
200ms ~ 400ms,
*Detect Voltage Temperature Characteristics:
TYP± 100ppm/℃
*Wide Operating Voltage Range : 0.7V ~ 10.0V
*Low Current Consumption : TYP 1.0 μA (VIN=2.0V)
TO-92
1
1
SOT-89
SOT-223
1
SOT-23
1
2
3
Lead-free: 81CXXXL/81NXXXL
Halogen-free: 81CXXXG/81NXXXG
ORDERING INFORMATION
CMOS:
Ordering Number ①:Delay Time Pin Assign.
Normal Lead Free Plating Halogen Free Duration Code Package 1 2 3 Packing
81Cxx-①-AA3-B-R 81CxxL-①-AA3-B-R 81CxxG-①-AA3-B-R SOT-223 O G I Tape Reel
81Cxx-①-AB3-E-R 81CxxL-①-AB3-E-R 81CxxG-①-AB3-E-R SOT-89 O I G Tape Reel
81Cxx-①-AE3-3-R 81CxxL-①-AE3-3-R 81CxxG-①-AE3-3-R SOT-23 O G I Tape Reel
81Cxx-①-AE3-5-R 81CxxL-①-AE3-5-R 81CxxG-①-AE3-5-R SOT-23 G O I Tape Reel
81Cxx-①-AE3-2-R 81CxxL-①-AE3-2-R 81CxxG-①-AE3-2-R SOT-23 I O G Tape Reel
81Cxx-①-T92-D-B 81CxxL-①-T92-D-B 81CxxG-①-T92-D-B TO-92 I G O Tape Box
81Cxx-①-T92-E-B 81CxxL-①-T92-E-B 81CxxG-①-T92-E-B TO-92 O I G Tape Box
81Cxx-①-T92-D-K 81CxxL-①-T92-D-K 81CxxG-①-T92-D-K TO-92 I G O Bulk
81Cxx-①-T92-E-K 81CxxL-①-T92-E-K 81CxxG-①-T92-E-K
1 ~ 50 ms
50 ~ 200 ms
200 ~ 400 ms
P
Q
R
TO-92 O I G Bulk
N-Channel:
Ordering Number ①:Delay Time Pin Assign.
Normal Lead Free Plating Halogen Free Duration Code Package 1 2 3 Packing
81Nxx-①-AA3-B-R 81NxxL-①-AA3-B-R 81NxxG-①-AA3-B-R SOT-223 O G I Tape Reel
81Nxx-①-AB3-E-R 81NxxL-①-AB3-E-R 81NxxG-①-AB3-E-R SOT-89 O I G Tape Reel
81Nxx-①-AE3-3-R 81NxxL-①-AE3-3-R 81NxxG-①-AE3-3-R SOT-23 O G I Tape Reel
81Nxx-①-AE3-5-R 81NxxL-①-AE3-5-R 81NxxG-①-AE3-5-R SOT-23 G O I Tape Reel
81Nxx-①-AE3-2-R 81NxxL-①-AE3-2-R 81NxxG-①-AE3-2-R SOT-23 I O G Tape Reel
81Nxx-①-T92-D-B 81NxxL-①-T92-D-B 81NxxG-①-T92-D-B TO-92 I G O Tape Box
81Nxx-①-T92-E-B 81NxxL-①-T92-E-B 81NxxG-①-T92-E-B TO-92 O I G Tape Box
81Nxx-①-T92-D-K 81NxxL-①-T92-D-K 81NxxG-①-T92-D-K TO-92 I G O Bulk
81Nxx-①-T92-E-K 81NxxL-①-T92-E-K 81NxxG-①-T92-E-K
1 ~ 50 ms
50 ~ 200 ms
200 ~ 400 ms
H
J
K
TO-92 O I G Bulk
Note: 1. Pin assignment: I:VIN O:VOUT G:V
SS
2. xx: Output Voltage, refer to Marking Information.
81CXXX/81NXXX CMOS IC
UNISONIC TECHNOLOGIES CO., LTD 2 of 15
www.unisonic.com.tw QW-R502-039,L
ORDERING INFORMATION(Cont.)
81CxxL- -AB3-x-R (1)Packing Type
(2)Pin Code
(5)Lead Plating
(4)Delay Time
(1) R: Tape Reel, B: Tape Box, K: Bulk
(2) refer to Pin Assignment
(4) :refer to Delay Time
(5) G: Halogen Free, L: Lead Free,
Blank: Pb/Sn
(6)Output Voltage Code
(7)Output Configuration
(6) xx: refer to Marking Information
(7) C: CMOS, N: N-Cannel
1
1
(3)Package Type (3) AA3: SOT-223, AB3: SOT-89, AE3: SOT-23,
T92: TO-92
MARKING INFORMATION
PACKAGE VOLTAGE CODE MARKING
SOT-223
SOT-89
TO-92
10:1.0V
11:1.1V
12:1.2V
13:1.3V
14:1.4V
15:1.5V
16:1.6V
17:1.7V
18:1.8V
19:1.9V
20:2.0V
21:2.1V
22:2.2V
23:2.3V
24:2.4V
25:2.5V
26:2.6V
27:2.7V
28:2.8V
29:2.9V
30:3.0V
31:3.1V
32:3.2V
33:3.3V
34:3.4V
35:3.5V
36:3.6V
37:3.7V
38:3.8V
39:3.9V
40:4.0V
41:4.1V
42:4.2V
43:4.3V
44:4.4V
45:4.5V
46:4.6V
47:4.7V
48:4.8V
49:4.9V
50:5.0V
* Represents the integer of the Detect Voltage
** Represents the decimal number of the Detect Voltage
EXAMPLE:
PACKAGE INTEGER* CODE DECIMAL** CODE MARKING
1. 1 .0 A
2. 2 .1 B
3. 3 .2 C
4. 4 .3 D
5. 5 .4 E
6. 6 .5 F
.6 G
.7 H
.8 J
SOT-23
.9 K
81CXXX/81NXXX CMOS IC
UNISONIC TECHNOLOGIES CO., LTD 3 of 15
www.unisonic.com.tw QW-R502-039,L
BLOCK DIAGRAM
VIN
VREF
VOUT
Vss
Delay
Circuit
CMOS Output
N-channel Open Drain Output
VIN
VREF
VOUT
Vss
Delay Circuit
81CXXX/81NXXX CMOS IC
UNISONIC TECHNOLOGIES CO., LTD 4 of 15
www.unisonic.com.tw QW-R502-039,L
ABSOLUTE MAXIMUM RATINGS (Ta=25℃)
PARAMETER SYMBOL RATINGS UNIT
Input Voltage VIN 12 V
Output Current IOUT 50 mA
CMOS VSS-0.3 ~ VIN+0.3
Output Voltage N-Ch open drain VOUT VSS-0.3 ~ 9 V
SOT-223 800
SOT-23 150
SOT-89 500
Power Dissipation
TO-92
PD
300
mW
Operating Temperature TOPR -30 ~ +80 ℃
Storage Temperature TSTG -40 ~ +125 ℃
Note Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
THERMAL DATA
PARAMETER SYMBOL RATINGS UNIT
SOT-223 15
SOT-23 200
SOT-89 100
Thermal Resistance Junction-Case
TO-92
θJC
45
℃/W
ELECTRICAL CHARACTERISTICS (Ta=25℃)
Detection voltage (1.0V ~ 1.9V)
PARAMETER SYMBOL CIRCUIT TEST CONDITIONS MIN TYP MAX UNIT
Detect Voltage VDF 1 V
DF (T)
X0.98 VDF (T) VDF (T)
X1.02 V
Hysteresis Range VHYS 1 V
DF
X0.02
VDF
X0.05
VDF
X0.08 V
Operating Voltage VIN 1 VDF=1.6V ~ 6.0V 0.7 10.0 V
VIN=1.5V 0.9 2.6 μA
Supply Current ISS 2
VIN=5.0 2.0 4.2 μA
3 N-ch
VDS=0.5V, VIN =1.0V
2.2
mA
Output Current IOUT
4
P-ch
VDS=2.1V, VIN=8.0V
(CMOS output)
-15.4 mA
VDF
Temperature Characteristics
ΔVDF
ΔTOPR×VDF ±100 ppm/℃
Transient Delay Time
(VDR ÆVOUT inversion) tDLY * 5 VIN changes from
0.6V ~ 10V 50 200 ms
81CXXX/81NXXX CMOS IC
UNISONIC TECHNOLOGIES CO., LTD 5 of 15
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ELECTRICAL CHARACTERISTICS(Cont.)
Detection voltage (2.0V ~ 2.9V)
PARAMETER SYMBOL CIRCUIT TEST CONDITIONS MIN TYP MAX UNIT
Detect Voltage VDF 1 V
DF (T)
X0.98 VDF (T) VDF (T)
X1.02 V
Hysteresis Range VHYS 1 V
DF
X0.02
VDF
X0.05
VDF
X0.08 V
Operating Voltage VIN 1 VDF=1.6V ~ 6.0V 0.7 10.0 V
VIN=2.0V 1.0 3.0 μA
Supply Current ISS 2
VIN=5.0V 2.0 4.2 μA
3 N-ch
VDS=0.5V, VIN =2.0V
7.9
mA
Output Current IOUT
4
P-ch
VDS=2.1V, VIN=8.0V
(CMOS output)
-15.4 mA
VDF
Temperature Characteristics
ΔVDF
ΔTOPR×VDF ±100 ppm/℃
Transient Delay Time
(VDR ÆVOUT inversion) tDLY * 5 VIN changes from
0.6V ~ 10V 50 200 ms
Detection voltage (3.0V ~ 3.9V)
PARAMETER SYMBOL CIRCUIT TEST CONDITIONS MIN TYP MAX UNIT
Detect Voltage VDF 1 V
DF (T)
X0.98 VDF (T) VDF (T)
X1.02 V
Hysteresis Range VHYS 1 V
DF
X0.02
VDF
X0.05
VDF
X0.08 V
Operating Voltage VIN 1 VDF=1.6V ~ 6.0V 0.7 10.0 V
VIN =3.0V 1.3 3.4 μA
Supply Current ISS 2
VIN =5.0V 2.0 4.2 μA
3 N-ch
VDS=0.5V, VIN =3.0V
10.1
mA
Output Current IOUT
4
P-ch
VDS=2.1V, VIN=8.0V
(CMOS output)
-15.4 mA
VDF
Temperature Characteristics
ΔVDF
ΔTOPR×VDF ±100 ppm/℃
Transient Delay Time
(VDR ÆVOUT inversion) tDLY * 5 VIN changes from
0.6V ~ 10V 50 200 ms
81CXXX/81NXXX CMOS IC
UNISONIC TECHNOLOGIES CO., LTD 6 of 15
www.unisonic.com.tw QW-R502-039,L
ELECTRICAL CHARACTERISTICS(Cont.)
Detection voltage (4.0V ~ 4.9V)
PARAMETER SYMBOL CIRCUIT TEST CONDITIONS MIN TYP MAX UNIT
Detect Voltage VDF 1 V
DF (T)
X0.98 VDF (T) VDF (T)
X1.02 V
Hysteresis Range VHYS 1 V
DF
X0.02
VDF
X0.05
VDF
X0.08 V
Operating Voltage VIN 1 VDF=1.6V ~ 6.0V 0.7 10.0 V
VIN=4.0V 1.5 3.8 μA
Supply Current ISS 2
VIN=5.0V 2.0 4.2 μA
3 N-ch
VDS=0.5V, VIN=4.0V
11.5
mA
Output Current IOUT
4
P-ch
VDS=2.1V, VIN=8.0V
(CMOS output)
-15.4 mA
VDF
Temperature Characteristics
ΔVDF
ΔTOPR×VDF ±100 ppm/℃
Transient Delay Time
(VDR ÆVOUT inversion) tDLY * 5 VIN changes from
0.6V ~ 10V 50 200 ms
Detection voltage (5.0V)
PARAMETER SYMBOL CIRCUIT TEST CONDITIONS MIN TYP MAX UNIT
Detect Voltage VDF 1 V
DF (T)
X0.98 VDF (T) VDF (T)
X1.02 V
Hysteresis Range VHYS 1 V
DF
X0.02
VDF
X0.05
VDF
X0.08 V
Operating Voltage VIN 1 VDF=1.6V ~ 6.0V 0.7 10.0 V
Supply Current ISS 2 VIN=5.0V 2.0 4.2 μA
3 N-ch VDS=0.5V, VIN =5.0V 13.0 mA
Output Current IOUT 4
P-ch
VDS=2.1V, VIN=8.0V
(CMOS output)
-15.4 mA
VDF
Temperature Characteristics
ΔVDF
ΔTOPR×VDF ±100 ppm/℃
Transient Delay Time
(VDR ÆVOUT inversion) tDLY * 5 VIN changes from
0.6V ~ 10V 50 200 ms
VDF (T): established detect voltage value
Release Voltage: VDR = VDF + VHYS
* Transient Delay Time: 1ms ~ 50ms & 200ms ~ 400ms versions are also available.
Note: The power consumption during power-start to output being stable (release operation) is 2 μA greater than it is
after that period (completion of release operation) because of delay circuit through current.
81CXXX/81NXXX CMOS IC
UNISONIC TECHNOLOGIES CO., LTD 7 of 15
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TEST CIRCUITS
81CXXX/81NXXX CMOS IC
UNISONIC TECHNOLOGIES CO., LTD 8 of 15
www.unisonic.com.tw QW-R502-039,L
TYPICAL PERFORMA NCE CHAR ACTERISTICS
(1) AMBIENT TEMPERATURE vs. TRANSIENT DELAY TIME
-30 10
150
81C30Q
tDLY (msec)
30-10 50
50
200
100
Ambient Temp., Ta ( ℃)
70 -30 10
320
81C30R
30-10 50
80
400
240
160
70
tDLY (msec)
Ambient Temp., Ta ( ℃)
-10 30
40
81C30P
50
10 70
0
50
30
20
10
-30
tDLY (msec)
Ambient Temp., Ta ( ℃)
81CXXX/81NXXX CMOS IC
UNISONIC TECHNOLOGIES CO., LTD 9 of 15
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TYPICAL PERFORMA NCE CHAR ACTERISTICS(Cont.)
(2) P-CHANNEL DRIVER OUTPUT CURRENT vs. INPUT VOLTAGE
(2) TRANSIENT DELAY TIME vs. INPUT VOLTAGE
81CXXX/81NXXX CMOS IC
UNISONIC TECHNOLOGIES CO., LTD 10 of 15
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TYPICAL PERFORMA NCE CHAR ACTERISTICS(Cont.)
(3) SUPPLY CURRENT vs. INPUT VOLTAGE
Supply Current, Iss ( A)
Input Voltage, V IN
04
3.0
81N27
62 8
0.0
4.0
2.0
1.0
10
Ta=80℃
25℃
Supply Current, Iss ( A)
Input Voltage, V IN (V)
04
3.0
81N28
62 8
0.0
4.0
2.0
1.0
10
Ta=80℃
25℃
04
3.0
81N30
62 8
0.0
4.0
2.0
Input Voltage, V IN
1.0
Ta=80℃
10
25℃
Supply Current, Iss ( A)
Supply Current, Iss ( A)
Input Voltage, V IN
04
3.0
81N29
62 8
0.0
4.0
2.0
1.0
10
Ta=80℃
25℃
μ
μ
(V)(V)
(V)
μ
μ
04
3.0
81N16
62 8
0.0
4.0
2.0
Input Voltage, V IN
1.0
10
Supply Current, Iss ( A)
Input Voltage, V IN
Ta=80℃
25℃
Supply Current, Iss ( A)
04
3.0
81N25
62 8
0.0
4.0
2.0
1.0
10
Ta=80℃
25℃
(V)
(V)
μ
μ
81CXXX/81NXXX CMOS IC
UNISONIC TECHNOLOGIES CO., LTD 11 of 15
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TYPICAL PERFORMA NCE CHAR ACTERISTICS(Cont.)
Supply Current, Iss (μA)
Supply Current, Iss (μA)
(4) OUTPUT VOLTAGE vs. INPUT VOLTAGE
Output Voltage, VOUT (V)
Output Voltage, VOUT (V)
Output Voltage, VOUT (V)
Output Voltage, VOUT (V)
81CXXX/81NXXX CMOS IC
UNISONIC TECHNOLOGIES CO., LTD 12 of 15
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TYPICAL PERFORMA NCE CHAR ACTERISTICS(Cont.)
0
3
81N29
2
134
0
4
2
1
Input Voltage, VIN (V)
VIN-VOUT:100kΩ
Ta=25℃
/ 80℃
13
4
81N30
4
25
0
5
3
2
1
0
Input Voltage, VIN (V)
VIN-VOUT:100kΩ
Ta=25℃
/ 80℃
Output Voltage, VOUT (V)
Output Voltage, VOUT (V)
(5) N-CHANNEL DRIVRE OUTPUT CURRENT vs. VDS
0.0
12
81N16
1.00.5 1.5 2.0
0
15
9
6
VDS (V)
Output Current, IOUT (mA)
3
Ta=25℃
VIN=1.5V
1.0V
0.2 0.6
1200
81N16
0.8
0.4 1.0
0
1400
1000
800
600
0
400
200
Output Current, IOUT (uA)
Ta=25℃
VIN=0.8V
0.7V
VDS (V)
81CXXX/81NXXX CMOS IC
UNISONIC TECHNOLOGIES CO., LTD 13 of 15
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TYPICAL PERFORMA NCE CHAR ACTERISTICS(Cont.)
81CXXX/81NXXX CMOS IC
UNISONIC TECHNOLOGIES CO., LTD 14 of 15
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TYPICAL PERFORMA NCE CHAR ACTERISTICS(Cont.)
0.5 1.5
25
81N29
2.0
1.0 2.5
0
30
20
15
0.0
10
5
Ta=25℃
VIN=2.0V
1.0V
Output Current, I OUT (mA)
VDS (V)
0.2 0.6
250
0.8
0.4 1.0
0
300
200
150
0.0
100
50
Ta=25℃
VIN=0.8V
0.7V
81N29
Output Current, I OUT (uA)
VDS (V)
0.5 1.5
50
2.0
1.0 2.5
0
60
40
30
0.0
20
10
Ta=25℃
3.0 3.5
1.0V
0.2 0.6
300
0.8
0.4 1.0
0
350
250
200
0.0
150
50
Ta=25℃
VIN=0.8V
0.7V
81N30 81N30
Output Current, I OUT (uA)
Output Current, I OUT (mA)
VDS (V)
VIN=2.0V
VDS (V)
100
81CXXX/81NXXX CMOS IC
UNISONIC TECHNOLOGIES CO., LTD 15 of 15
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TYPICAL PERFORMA NCE CHAR ACTERISTICS(Cont.)
0.5 1.5
50
2.0
1.0 2.5
0
60
40
30
0.0
20
10
Ta=25℃
3.0 3.5
2.0V
1.5V
0.2 0.6
1200
0.8
0.4 1.0
0
1400
1000
800
0.0
600
200
Ta=25℃VIN=0.8V
0.7V
81N35 81N35
Output Current, I OUT (uA)
Output Current, I OUT (mA)
VDS (V)
2.5V
VIN=3.0V
VDS (V)
400
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.