UNISONIC TECHNOLOGIES CO.,
81CXXX/81NXXX
VOLTAGE DETECTORS
WITH BUILT-IN DELAY
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.
SOT-89
1
CMOS IC
1
TO-92
1
2
3
FEATURES
*Highly Accurate : Detect voltage ± 2%
*Built-In Delay time : 1ms ~ 50ms,
50ms ~ 200ms,
200ms ~ 400ms,
80ms ~ 400ms
*Detect Voltage Temperature Characteristics:
TYP± 100ppm/℃
*Wide Operating Voltage Range : 0.7V ~ 10.0V
*Low Current Consumption : TYP 1.0 µA (V
IN
=2.0V)
SOT-23
*Pb-free plating product number: 81CXXXL/81NXXXL
ORDERING INFORMATION
CMOS:
Order Number
①:Delay
Time
Pin Assign.
Package
Normal
Lead free
Duration Code
1 2 3
81Cxx
①
-AB3-E-R 81Cxx
①L
-AB3-E-R
SOT-89 O I
G
81Cxx
①
-AE3-5-R 81Cxx
①L
-AE3-5-R
SOT-23 G O
I
P
1 ~ 50 ms
81Cxx
①
-T92-D-B 81Cxx
①L
-T92-D-B
50 ~ 100 ms
TO-92
I G O
Q
81Cxx
①
-T92-E-B 81Cxx
①L
-T92-E-B
100 ~ 250 ms
R
TO-92
O I
G
81Cxx
①
-T92-D-K 81Cxx
①L
-T92-D-K
250 ~ 400 ms
S
TO-92
I G O
TO-92
O I
G
81Cxx
①
-T92-E-K 81Cxx
①L
-T92-E-K
N-Channel:
Order Number
①:Delay
Time
Pin Assign.
Package
Normal
Lead free
Duration Code
1 2 3
81Nxx
①
-AB3-E-R 81Nxx
①L
-AB3-E-R
SOT-89 O I
G
81Nxx
①
-AE3-5-R 81Nxx
①L
-AE3-5-R
SOT-23 G O
I
H
1 ~ 50 ms
J
81Nxx
①
-T92-D-B 81Nxx
①L
-T92-D-B
50 ~ 100 ms
TO-92
I G O
81Nxx
①
-T92-E-B 81Nxx
①L
-T92-E-B
100 ~ 250 ms
K
TO-92
O I
G
81Nxx
①
-T92-D-K 81Nxx
①L
-T92-D-K
250 ~ 400 ms
N
TO-92
I G O
TO-92
O I
G
81Nxx
①
-T92-E-K 81Nxx
①L
-T92-E-K
Note: 1. Pin assignment: I:Vin O:Vout G:Vss
2.xx: Output Voltage, refer to Marking Information.
Packing
Tape Reel
Tape Reel
Tape Box
Tape Box
Bulk
Bulk
Packing
Tape Reel
Tape Reel
Tape Box
Tape Box
Bulk
Bulk
www.unisonic.com.tw
Copyright © 2005 Unisonic Technologies Co.,
1
QW-R502-039,C
81CXXX/81NXXX
MARKING INFORMATION
PACKAGE
VOLTAGE CODE
35:3.5V
18:1.8V
36:3.6V
19:1.9V
37:3.7V
20:2.0V
38:3.8V
21:2.1V
39:3.9V
22:2.2V
40:4.0V
23:2.3V
41:4.1V
24:2.4V
42:4.2V
25:2.5V
43:4.3V
26:2.6V
44:4.4V
27:2.7V
45:4.5V
28:2.8V
46:4.6V
29:2.9V
47:4.7V
30:3.0V
48:4.8V
31:3.1V
49:4.9V
32:3.2V
50:5.0V
33:3.3V
34:3.4V
MARKING
CMOS IC
Delay Time
Date Code
C:CMOS
N:N-Channel
SOT-89
81XXXX
1
2
3
Space:Pb/Sn
L:Pb-free
Voltage Code
C:CMOS
N:N-Channel
Delay Time
Pin Code
TO-92
UTC
81XXXX
Space:Pb/Sn
L:Pb-free
Voltage Code
Date Code
1
2
MARKING
3
INTEGER* CODE DECIMAL** CODE
1.
1
.0
A
2.
2
.1
B
3.
3
.2
C
4.
4
.3
D
5.
5
.4
E
SOT-23
6.
6
.5
F
.6
G
.7
H
.8
J
.9
K
* Represents the integer of the Detect Voltage
** Represents the decimal number of the Detect Voltage
3
Delay Time
Voltage Code
Space :Pb/Sn
L:Pb-free
2
1
EXAMPLE:
81C27P
3
2HPL
2
1
Delay Time
L:Pb-free
Voltage Code
81N27H
3
2HHL
2
1
Delay Time
L:Pb-free
Voltage Code
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2
QW-R502-039,C
81CXXX/81NXXX
ABSOLUTE MAXIMUM RATINGS
(Ta=25℃)
PARAMETER
Input Voltage
Output Current
Output Voltage
Power Dissipation
Operating Temperature
Storage Temperature
CMOS
N-Ch open drain
SOT-23
SOT-89
TO-92
SYMBOL
V
IN
I
OUT
V
OUT
P
D
T
OPR
T
STG
RATINGS
12
50
V
SS
-0.3 ~ V
IN
+0.3
V
SS
-0.3 ~ 9
150
500
300
-20 ~ +85
-40 ~ +150
CMOS IC
UNIT
V
mA
V
mW
℃
℃
ELECTRICAL CHARACTERISTICS
(Ta=25℃)
PARAMETER
Detect Voltage
Hysteresis Range
Operating Voltage
SYMBOL CIRCUIT
V
DF
V
HYS
V
IN
1
1
1
V
DF
=1.6V ~ 6.0V
V
IN
=1.5V
=2.0V
=3.0V
=4.0V
=5.0V
N-ch V
DS
=0.5V, V
IN
=1.0V
=2.0V
=3.0V
=4.0V
=5.0V
P-ch V
DS
=2.1V
V
IN
=8.0V
(CMOS output)
TEST CONDITIONS
MIN
V
DF
(T)
X0.98
V
DF
X0.02
0.7
MAX UNIT
V
DF
(T)
V
DF
(T)
V
X1.02
V
DF
V
DF
V
X0.05 X0.08
10.0
V
2.6
0.9
3.0
1.0
µA
3.4
1.3
3.8
1.5
4.2
2.0
2.2
7.9
10.1
11.5
mA
13.0
-15.4
±100
50
200
ppm/℃
ms
TYP
Supply Current
I
SS
2
3
Output Current
I
OUT
4
V
DF
∆V
DF
Temperature Characteristics
∆Topr×V
DF
V
IN
changes from
Transient Delay Time
5
t
DLY
*
(V
DR
V
OUT
inversion)
0.6V ~ 10V
V
DF
(T): established detect voltage value
Release Voltage: V
DR
= V
DF
+ V
HYS
* Transient Delay Time : 1ms ~ 50ms & 80ms ~ 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.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4
QW-R502-039,C
81CXXX/81NXXX
TEST CIRCUITS
1-1
100kΩ
CMOS IC
1-2
V
IN
V
IN
+
-
V
V
OUT
V
SS
V
IN
V
+
-
V
V
IN
V
OUT
V
SS
V
Cmos Output
N-channel Open Drain Output
2
A
V
IN
+
-
V
IN
V
OUT
V
SS
3
V
IN
V
IN
+
-
V
OUT
Vss
A
+
-
V
DS
4
+ V
DS
V
IN
V
IN
+
-
V
OUT
Vss
A
-
5-1
V
IN
V
IN
V
OUT
Vss
Measurement
waveform
Cmos Output
5-2
100kΩ
V
IN
V
IN
V
OUT
Vss
Measurement
waveform
N-channel Open Drain Output
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5
QW-R502-039,C
stm32/stm8
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