UNISONIC TECHNOLOGIES CO., LTD
81XX
POWER RESET IC
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.
LINEAR INTEGRATED CIRCUIT
FEATURES
*High Precision Voltage Detection. (V
SS
±3%
Max)
*Low Current Consumption.
(I
CCH
=15µA typ. I
CCL
=10µA Typ.)
*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.
ORDERING INFORMATION
Ordering Number
Normal
Lead Free
Halogen Free
81XX-AB3-D-R
81XXL-AB3-D-R
81XXG-AB3-D-R
81XX-AB3-E-R
81XXL-AB3-E-R
81XXG-AB3-E-R
81XX-AE3-2-R
81XXL-AE3-2-R
81XXG-AE3-2-R
81XX-AE3-3-R
81XXL-AE3-3-R
81XXG-AE3-3-R
81XX-AE3-5-R
81XXL-AE3-5-R
81XXG-AE3-5-R
81XX-AF5-A-R
81XXL-AF5-A-R
81XXG-AF5-A-R
81XX-AF5-B-R
81XXL-AF5-B-R
81XXG-AF5-B-R
81XX-T92-D-B
81XXL-T92-D-B
81XXG-T92-D-B
81XX-T92-D-K
81XXL-T92-D-K
81XXG-T92-D-K
81XX-T92-E-B
81XXL-T92-E-B
81XXG-T92-E-B
81XX-T92-E-K
81XXL-T92-E-K
81XXG-T92-E-K
Note: Pin Assignment:
I: V
IN
O: V
OUT
G: GND NC:N
XX: Detected Voltage Value
Package
SOT-89
SOT-89
SOT-23
SOT-23
SOT-23
SOT-25
SOT-25
TO-92
TO-92
TO-92
TO-92
Pin Assignment
1 2 3 4 5
I G O - -
O I G - -
I O G - -
O G I - -
G O I - -
N N G O I
O I G N N
I G O - -
I G O - -
O I G - -
O I G - -
Packing
Tape Reel
Tape Reel
Tape Reel
Tape Reel
Tape Reel
Tape Reel
Tape Reel
Tape Box
Bulk
Tape Box
Bulk
www.unisonic.com.tw
Copyright © 2009 Unisonic Technologies Co., Ltd
1 of 6
QW-R119-001,L
81XX
MARKING INFORMATION
PACKAGE
MARKING
3
Date Code
SOT-23
Voltage Code
2
1
LINEAR INTEGRATED CIRCUIT
L: Lead Free
G: Halogen Free
Pin Code
SOT-89
Date Code
Voltage Code
1
81XX
2
3
L: Lead Free
G: Halogen Free
SOT-25
TO-92
BLOCK DIAGRAM
V
CC
C
01
+
-
OP
1
OUT
The Pin2 this product is SUB, so connect the pin to Ground.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
+
-
GND
2 of 6
QW-R119-001,L
81XX
ABSOLUTE MAXIMUM RATINGS
LINEAR INTEGRATED CIRCUIT
PARAMETER
SYMBOL
RATINGS
UNIT
Power Supply Voltage
V
CC
-0.3~+10
V
Ambient Operating Temperature
T
OPR
-20~+75
°C
Storage Temperature
T
STG
-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
(T
A
=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
R
L
=470Ω
UTC 8133
V
CC
=H->L
Detection Voltage
V
SS
1
UTC 8132
V
OUT
=V
CC
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
R
L
=470Ω, V
CC
=L>H->L,
Hysteresis Voltage
ΔV
SS
1
V
OUT
=V
CC
R
L
=470Ω, T
A
=-20~+75°C
Detection Voltage Temperature
V
SS
/ΔT
1
Coefficient
V
OUT
=V
CC
V
CC
=V
SS
min.-0.05V,
Low Level Output Voltage
V
OL
1
R
L
=470Ω
Output Leakage Current
I
OH
2
V
CC
=10V , V
OUT
=V
CC
Circuit Current at ON Time
I
CCL
3
V
CC
=V
SS
min.-0.05V, R
L
=∞
Circuit Current at OFF Time
I
CCH
3
V
CC
=V
SS
typ./0.85, R
L
=∞
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
30
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
50
±0.01
0.2
3
3
0.4
±0.1
5
5
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
100
UNIT
V
mV
%/°C
V
µA
µA
µA
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
3 of 6
QW-R119-001,L
81XX
ELECTRICAL CHARACTERISTICS(Cont.)
PARAMETER
LINEAR INTEGRATED CIRCUIT
TEST CONDITIONS
SYMBOL
(Note 1)
TpLH
4
C
L
=100pF, R
L
=4.7kΩ
“H” Transmission Delay Time
(Note 2)
TpHL
4
C
L
=100pF, R
L
=4.7kΩ
“L” Transmission Delay Time
(Note 3)
Operating Threshold Voltage
V
OPL
1
R
L
=4.7kΩ, V
OL
≤0.4V
R
L
=0, V
CC
=Vs min.-0.05V,
Output current at ON Time 1
I
OL
1
2
V
OUT
=0.4V
T
A
=-20~+75°C
R
L
=0, V
CC
=V
SS
min.-0.15V
Output current at ON Time 2
I
OL
2
2
V
OUT
=0.4V
Note: 1. MEASUREMENT CIRCUIT
2.
TpLH: V
CC
=(V
SS
Typ. –0.4V) -> (V
SS
Typ. +0.4V)
3.
TpHL: V
CC
=(V
SS
Typ. +0.4V) -> (V
SS
Typ. -0.4V)
MIN
TYP
20
20
0.65
MAX
60
60
0.85
UNIT
µS
µS
V
mA
mA
5
3
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 6
QW-R119-001,L
81XX
MEASURING CIRCUITS
1）
R
L
LINEAR INTEGRATED CIRCUIT
V
CC
UTC 81XX
GND
V
OUT
V
CC
V1
+
10μF
/10V
V2
4)
R
L
= 4.7K
INPUT
PULSE
V
CC
0.2UF
UTC
V
OUT
81XX
GND
10μF
/10V
+
5.0V
C
L
CRT
NOTE:
1.) A: DC AMMETER
2.) INPUT PULSE
V: DC VOLTMETER
CRT: OSCILLOSCOPE
VsTyp. +0.4V
VsTyp. -0.4V
0V
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 6
QW-R119-001,L
Microchip MCU
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
