Datasheet

UNISONIC TECHNOLOGIES CO., LTD
82XX
Preliminary
LINEAR INTEGRATED CIRCUIT
MONOLITHIC IC 82XX SERIES

DESCRIPTION
The normal operation of the UTC 82XX is that while the power is
turned on or interrupted, detect power supply voltage and then reset
the system accurately.
The internal circuits of the UTC 82XX include a built-in fixed
delay time generating circuit. With a counter timer using an
analog/digital hybrid circuit, the UTC 82XX as new low reset type
system reset ICs expands the delay time series.
These ICs can be used in a variety of CPU systems and other
logic systems.

FEATURES
* Internal Fixed Delay Time Setting by Counter Timer
* Grate Delay Time Temperature Characteristics:±800ppm/°C
* Operating Limit Voltage as 0.65V(Typ.)
* Hysteresis Voltage Provided: 50mV(Typ.)
* Circuit Current While On ICCL=300µA(Typ.)
* Circuit Current While Off ICCH=200µA(Typ.)

ORDERING INFORMATION
Ordering Number
Package
82XXG-x-AF5-R
SOT-25
Notes: xx: Output Voltage, refer to Marking Information.
x : Delay Time, refer to Electrical Characteristics of "H" Transport Delay Time
Packing
Tape Reel
82XX G-x-AF5-R
(1) Packing Type
(1) R: Tape Reel
(2) Package Type
(2) AF5: SOT-25
(3) Delay Time
(4) Green Package
(5) Output Voltage Code
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(3) x: Refer to Electrical Charactreistics of "H" Transport
(3) Delay Time
(4) G: Halogen Free and Lead Free
(5) xx: Refer to Marking Information
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MARKING INFORMATION
PACKAGE
VOLTAGE CODE
SOT-25
25:2.5V
27:2.7V
2K:2.93V

PIN CONFIGURATION

PIN DESCRIPTION
PIN NO.
1
2
3
4
5
PIN NAME
VOUT
NC
RESET
VCC
GND
MARKING
DESCRIPTION
Output pin
Connected nothing
Reset control pin
Supply voltage
Ground
BLOCK DIAGRAM
47K

LINEAR INTEGRATED CIRCUIT
47K

Preliminary
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
Preliminary
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATING (TA=25°C, Unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
UNIT
Power Supply Voltage
VCC
-0.3~+10
V
Manual Reset Input Voltage
VRESET
-0.3~+10
V
Power Dissipation
PD
400
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, Unless otherwise specified)
VS=2.5V~2.93V
PARAMETER
SYMBOL
Detection Voltage
VS
Low-Level Output Voltage
VOL
Operating Power Supply Voltage
VOPL
Hysteresis Voltage
∆VS
Detection Voltage Temperature
Coefficient
Output Leakage Current
On
Circuit Current
(See Test Circuit 1)
Off
VS
∆T
IOH
ICCL
ICCH
"H" Transport Delay Time
tPLH
"L" Transport Delay Time
tPHL
Output Current While on 1
IOL1
Output Current While on 2
IOL2
TEST CONDITIONS
VOL≤0.4V, VCC=H→L, RL=470Ω
(See Test Circuit 1)
VCC=VS(min)-0.05V, RL=470Ω
(See Test Circuit 1)
RL=4.7kΩ, VOL≤0.4V
VCC=L→H→L , RL=470Ω
(See Test Circuit 1)
RL=470Ω, TA=-20°C~+75°C
(See Test Circuit 1)
VCC=10V (See Test Circuit 1)
VCC= VS(MIN)-0.05V, RL=∞
VCC=VS(TYP)/0.85V, RL=∞
P
Q
RL=4.7KΩ, CL=100PF (Note 1)
R
(See Test Circuit 2)
S
T
RL=4.7kΩ, CL=100PF (Note 1)
(See Test Circuit 2)
VCC=VS min.-0.05V, RL=0Ω
(See Test Circuit 1)
TA=-20°C ~+75°C, RL=0Ω(Note 2)
(See Test Circuit 1)
Input High Voltage
VRESH
Manual Reset
Input High Current
IRESH
VRESET=2V
Pin
Input Low Voltage
VRESL
Notes: 1. tPLH: VCC= (VS(TYP)-0.4V)(VS(TYP)+0.4V)
tPHL: VCC= (VS(TYP)+0.4V)(VS(TYP)-0.4V)
2. VCC=VS(MIN)-0.15V
3. VOUT pin is low when manual reset pin is high.
VOUT pin is high when manual reset pin is low.
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MIN
VS
-0.15V
30
TYP
VS
MAX UNIT
VS
V
+0.15V
0.1
0.4
V
0.65
0.85
V
50
100
mV
±0.01
30
60
120
240
480
300
200
50
100
200
400
800
%/°C
±0.1
600
350
75
150
300
600
1200
10
µA
µA
µA
mS
mS
mS
mS
mS
µS
8
mA
6
mA
2.0
80
0.8
V
µA
V
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
Preliminary
LINEAR INTEGRATED CIRCUIT
TEST CIRCUITS
A1
A2
VCC
VCC
V1
10µF/10V
MANUAL
RESET
RL
VOUT
V2
GND
Test Circuit 1
A: DC ammeter
V: DC voltmeter
CRT: Oscilloscope
VCC
0.2µF/10V
INPUT
PULSE
RL=4.7K
MANUAL
RESET
VOUT
10µF/10V
GND
CL=100pF
5.0V
CRT
(2)INPUT PULSE
0.8V
4.9
VS
4.1
0V
Note Input model is an example for 82XX
Test Circuit 2
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82XX
LINEAR INTEGRATED CIRCUIT
TIMING CHART
VCC/VOUT (V)

Preliminary
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
Preliminary
LINEAR INTEGRATED CIRCUIT
TYPICAL APPLICATION CIRCUITS
1. Normal hard reset
To VCC
VCC
RL
MANUAL
RESET
VOUT
To CPU Reset Pin
GND
Note: Connect a capacitor between IC VCC and GND
pins if VCC line impedance is high.
2. Manual reset
To VCC
MANUAL
SW
VCC
MANUAL
RESET
RL
VOUT
To CPU Reset Pin
GND
VOUT pin low for manual switch ON.
VOUT pin high for manual switch OFF.
Note: Connect a capacitor between IC VCC and GND
pins if VCC line impedance is high.
3. Mute circuit
To VCC
VCC
RL
MANUAL
RESET
VOUT
To Mute Circuit
GND
Note: Connect a capacitor between IC VCC and GND
pins if VCC line impedance is high.
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Preliminary
LINEAR INTEGRATED CIRCUIT
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.
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