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, is most suited as a voltage
check circuit for a number of products which use batteries.
LINEAR INTEGRATED CIRCUIT
3
1
2
1
SOT-23
TO-92
1
3
2
1
5
4
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.)
*Hystresis 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.
SOT-25
SOT-89
*Pb-free plating product number: 81XX L
ORDERING INFORMATION
Order Number
Package
Normal
Lead Free Plating
81XX-AB3-D-R
81XXL-AB3-D-R
SOT-89
81XX-AE3-2-R
81XXL-AE3-2-R
SOT-23
81XX-AE3-3-R
81XXL-AE3-3-R
SOT-23
81XX-AE3-5-R
81XXL-AE3-5-R
SOT-23
81XX-AF5-A-R
81XXL-AF5-A-R
SOT-25
81XX-AF5-B-R
81XXL-AF5-B-R
SOT-25
81XX-T92-D-B
81XXL-T92-D-B
TO-92
81XX-T92-D-K
81XXL-T92-D-K
TO-92
81XX-T92-E-B
81XXL-T92-E-B
TO-92
81XX-T92-E-K
81XXL-T92-E-K
TO-92
Note: Pin Assignment:
I: V
CC
O: V
OUT
G: GND
XX: detected voltage value
81XXL-AB3-D-R
(1)Packing Type
(2)Pin Assignment
(3)Package Type
(4)Lead Plating
(1) B: Tape Box, K: Bulk, R: Tape Reel
(2) refer to Pin Assignment
(3) AB3: SOT-89, AF5: SOT-25, AE3: SOT-23,
T 92: TO-92
(4) L: Lead Free Plating, Blank: Pb/Sn
Pin Assignment
1
2
3
4
5
I
G
O
-
-
I
O
G
-
-
O
G
I
-
-
G
O
I
-
-
NC NC G
O
I
O
I
G
NC NC
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 Box
Bulk
Tape Box
Bulk
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Copyright © 2005 Unisonic Technologies Co., Ltd
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QW-R119-001,J
81XX
MARKING INFORMATION
PACKAGE
MARKING
3
LINEAR INTEGRATED CIRCUIT
PACKAGE
MARKING
SOT-23
VOLTAGE
CODE
DATE
CODE
PIN CODE
SOT-89
DATE
CODE
81XX
1 2 3
VOLTAGE
CODE
2
3
2
1
1
DATE
CODE
PIN CODE
SOT-25
VOLTAGE
CODE
TO-92
UTC
81XX
PIN CODE
DATE
CODE
4
5
1
2
3
BLOCK DIAGRAM
V
CC
C01
+
-
OP1
+
-
OUT
GND
The Pin2 this product is SUB, so connect the pin to Ground.
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www.unisonic.com.tw
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QW-R119-001,J
81XX
ABSOLUTE MAXIMUM RATINGS
PARAMETER
LINEAR INTEGRATED CIRCUIT
SYMBOL
RATINGS
UNIT
Power supply voltage
V
CC
-0.3~+10
V
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
(Ta=25°C, The unit of resistance is
Ω
unless otherwise indicated.)
PARAMETER
SYMBOL
(*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
∆V
SS
1
V
OUT
=V
CC
R
L
=470Ω, Ta=-20~+75°C
Detection Voltage Temperature
V
SS
/∆T
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
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QW-R119-001,J
81XX
ELECTRICAL CHARACTERISTICS(Cont.)
PARAMETER
“H” Transmission Delay Time
“L” Transmission Delay Time
Operating Threshold Voltage
Output current at ON Time 1
Output current at ON Time 2
SYMBOL
TpLH (*2)
TpHL (*3)
V
OPL
I
OL
1
I
OL
2
(*1)
4
4
1
2
2
LINEAR INTEGRATED CIRCUIT
TEST CONDITIONS
C
L
=100pF, R
L
=4.7KΩ
C
L
=100pF, R
L
=4.7kΩ
R
L
=4.7kΩ, V
OL
≦0.4V
R
L
=0, V
CC
=Vs min.-0.05V,
V
OUT
=0.4V
Ta=-20~+75°C
R
L
=0, V
CC
=V
SS
min.-0.15V
V
OUT
=0.4V
MIN
TYP
20
20
0.65
MAX
60
60
0.85
UNIT
µS
µS
V
mA
mA
5
3
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)
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QW-R119-001,J
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