UNISONIC TECHNOLOGIES CO., LTD 81XX

UNISONIC TECHNOLOGIES CO., LTD
81XX
LINEAR INTEGRATED CIRCUIT
POWER RESET IC
3
3

DESCRIPTION
The function of UTC 81XX is to accurately reset system after
detecting the supply voltage at the time of switching power on and
instantaneous power off in various CPU and other logic systems.
Further, this IC, with its super low consumption current and high
precision voltage detection capacity, UTC 81XX is the most suited
as a voltage check circuit for a number of products which use
batteries.

FEATURES
*High precision voltage detection. (VSS3% max)
*low current consumption.
(ICCH=5µA max. ICCL=5µA max.)
*Low operating threshold voltage (0.65V typ.)
*Hysteresis voltage is provided as a detect voltage.
(50mV typ.)
*Large output current at the time ON (15mA typ.)
*The detect voltage can be selected at your discretion at 0.1V step
within the range of 1.9V to 4.6V by the following stipulation
method.
www.unisonic.com.tw
Copyright © 2014 Unisonic Technologies Co., Ltd
2
1
2
SOT-23-3
1
SOT-23
(JEDEC TO-236)
(EIAJ SC-59)
3
21
4
1
5
SOT-25
SOT-89
1
TO-92
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QW-R119-001.T
81XX

LINEAR INTEGRATED CIRCUIT
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
81XXG-AB3-D-R
81XXG-AB3-E-R
81XXG-AE3-2-R
81XXG-AE3-3-R
81XXG-AE3-5-R
81XXG-AE2-2-R
81XXG-AE2-3-R
81XXG-AE2-5-R
81XXG-AF5-A-R
81XXG-AF5-B-R
81XXL-T92-D-B
81XXG-T92-D-B
81XXL-T92-D-K
81XXG-T92-D-K
81XXL-T92-E-B
81XXG-T92-E-B
81XXL-T92-E-K
81XXG-T92-E-K
Note: Pin Assignment:
I: VIN O: VOUT G: GND
XX: Detected Voltage Value
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
Package
SOT-89
SOT-89
SOT-23
SOT-23
SOT-23
SOT-23-3
SOT-23-3
SOT-23-3
SOT-25
SOT-25
TO-92
TO-92
TO-92
TO-92
N: NC
1
I
O
I
O
G
I
O
G
N
O
I
I
O
O
Pin Assignment
2 3 4 5
G O I G O G G I
O I
O G G I
O I
N G O I
I G N N
G O G O I G I G -
Packing
Tape Reel
Tape Reel
Tape Reel
Tape Reel
Tape Reel
Tape Reel
Tape Reel
Tape Reel
Tape Reel
Tape Reel
Tape Box
Bulk
Tape Box
Bulk
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QW-R119-001.T
81XX

LINEAR INTEGRATED CIRCUIT
MARKING INFORMATION
SOT-23 / SOT-23-3
SOT-89
3
Date Code
G
Voltage Code
2
Pin Code
Date Code
Voltage Code
1
1
SOT-25

81XXG
2
3
TO-92
BLOCK DIAGRAM
VCC
+
-
C01
+
-
OP1
OUT
GND
The Pin2 this product is SUB, so connect the pin to Ground.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R119-001.T
81XX

LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATINGS
UNIT
Power Supply Voltage
VCC
-0.3~+10
V
TO-92
400
mW
SOT-89
500
mW
Power Dissipation
PD
SOT-23/SOT-23-3
300
mW
SOT-25
350
mW
Operating Temperature
TOPR
-20~+75
C
Storage Temperature
TSTG
-40~+125
C
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.

ELECTRICAL CHARACTERISTICS
(TA=25C, The unit of resistance is Ω unless otherwise indicated.)
PARAMETER
SYMBOL (Note 1)
TEST CONDITIONS
UTC 8150
UTC 8146
UTC 8145
UTC 8144
UTC 8143
UTC 8142
UTC 8141
UTC 8140
UTC 8139
UTC 8138
UTC 8137
UTC 8136
UTC 8135
UTC 8134
RL=470Ω
UTC 8133
VCC=H->L
Detection Voltage
VSS
1
UTC 8132
VOUT=VCC
UTC 8131
UTC 8130
UTC 8129
UTC 8128
UTC 8127
UTC 8126
UTC 8125
UTC 8124
UTC 8123
UTC 8122
UTC 8121
UTC 8120
UTC 8119
UTC 8118
RL=470Ω, VCC=L>H->L,
Hysteresis Voltage
VSS
1
VOUT=VCC
RL=470Ω, TA=-20~+75C
Detection Voltage Temperature
VSS/T
1
Coefficient
VOUT=VCC
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
MIN
4.850
4.462
4.365
4.268
4.171
4.074
3.977
3.880
3.783
3.686
3.589
3.492
3.395
3.298
3.201
3.104
3.007
2.910
2.813
2.716
2.619
2.522
2.425
2.328
2.231
2.134
2.037
1.940
1.843
1.746
TYP
5.000
4.600
4.500
4.400
4.300
4.200
4.100
4.000
3.900
3.800
3.700
3.600
3.500
3.400
3.300
3.200
3.100
3.000
2.900
2.800
2.700
2.600
2.500
2.400
2.300
2.200
2.100
2.000
1.900
1.800
MAX
5.150
4.738
4.635
4.532
4.429
4.326
4.223
4.120
4.017
3.914
3.811
3.708
3.605
3.502
3.399
3.296
3.193
3.090
2.987
2.884
2.781
2.678
2.575
2.472
2.369
2.266
2.163
2.060
1.957
1.854
UNIT
30
50
100
mV
0.01
V
%/C
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QW-R119-001.T
81XX

LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS(Cont.)
PARAMETER
SYMBOL (Note 1)
VOL
1
2
3
3
4
CL=100pF, RL=4.7kΩ
20
60
µS
4
CL=100pF, RL=4.7kΩ
20
60
µS
Operating Threshold Voltage
IOH
ICCL
ICCH
TPLH
(Note 2)
TPHL
(Note 3)
VOPL
TEST CONDITIONS
VCC=VSS MIN -0.05V,
RL=470Ω
VCC=10V , VOUT=VCC
VCC=VSS MIN -0.05V, RL=
VCC=VSS TYP/0.85, RL=
1
0.65
0.85
V
Output current at ON Time 1
IOL1
2
Output current at ON Time 2
IOL2
2
RL=4.7kΩ, VOL≤0.4V
RL=0, VCC=Vs MIN -0.05V,
VOUT=0.4V
TA=-20~+75C
RL=0, VCC=VSS MIN -0.15V
VOUT=0.4V
Low Level Output Voltage
Output Leakage Current
Circuit Current at ON Time
Circuit Current at OFF Time
“H” Transmission Delay Time
“L” Transmission Delay Time
MIN
TYP
MAX
UNIT
0.2
0.4
V
3
3
0.1
5
5
µA
µA
µA
5
mA
3
mA
Notes: 1. MEASUREMENT CIRCUIT
2. TPLH: VCC=(VSS Typ. -0.4V) -> (VSS Typ. +0.4V)
3. TPHL: VCC=(VSS Typ. +0.4V) -> (VSS Typ. -0.4V)
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R119-001.T
81XX

LINEAR INTEGRATED CIRCUIT
MEASURING CIRCUITS
1
RL
2
UTC 81XX
UTC 81XX
VCC
VCC
V1
+10µF
VCC
VOUT
VCC
GND
V1
V2
/10V
+10µF
/10V
A
VOUT
GND
VOUT
V2
3
A
VCC
+10µF
V
Note:
1.) A: DC AMMETER
2.) INPUT PULSE
V: DC VOLTMETER
UTC
VCC 81XX VOUT
GND
/10V
CRT: OSCILLOSCOPE
VsTyp. +0.4V
VsTyp. -0.4V
0V
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R119-001.T
81XX

LINEAR INTEGRATED CIRCUIT
TYPICAL CHARACTERISTICS
Transmission Delay Time(8145)
Max Input Voltage Characteristics
1200
6
1000
5
800
4
600
3
CH1
CH1:VCC=4.1~4.9V
CH2:VOUT
2
400
1
200
CH2
0
0
0
10
20
30
40
50
Power Supply Voltage, VCC (V)
60
Time (20µs/div)
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.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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