MITSUBISHI M62781GP

MITSUBISHI Dig./Ana.INTERFACE
M62781GP
VOLTAGE DETECTING, SYSTEM RESETTING IC SERIES
This product is on during the development, and there
is a case rescheduling it future technical standard.
GENERAL DESCRIPTION
The M62781GP is a voltage threshold detector designed for
detection of a supply voltage and generation of a system
reset pulse for almost all logic circuits such as
microprocessor.
It also has extensive applications including battery checking,
level detecting and waveform shaping circuits.
FEATURES
• Few external parts
• Low threshold operating voltage (Supply voltage to keep
low-state at low supply voltage) …0.65V(TYP.) at RL=22kΩ
• Wide supply voltage range ………… 1.5to 7.0V
• Sudden change in power supply has minimal effect on the ICs
• Wide application range
• Extra small 3-pin package (3-pin SOP)
• Built-in long delay time
APPLICATION
• Reset pulse generation for almost all logic circuits
• Battery checking, level detecting, waveform shaping circuits
• Delayed waveform generator
• Switching circuit to a back-up power supply
• DC/DC converter
• Over voltage protection circuit
RECOMMENDED OPERATING CONDITION
• Supply voltage range ………… 1.5to 7.0V
GND
M62781GP
PIN CONFIGURATION (TOP VIEW)
3
2
OUTPUT
1
SUPPLY
VOLTAGE
Outline SOT-23
BLOCK DIAGRAM
M62781GP
SUPPLY VOLTAGE
1
R1
OSC
R2
2
OUTPUT
COUNTER
+
1.25V
31
GND
( 1 / 4 )
1998-8-25
MITSUBISHI Dig./Ana.INTERFACE
M62781GP
VOLTAGE DETECTING, SYSTEM RESETTING IC SERIES
FUNCTION DIAGRAM
SUPPLY
VOLTAGE
4.00V
"L" RESET TYPE
0.65V
OUTPUT
STATE
t
H
td
L
td
t
td≈400msec
OUTPUT
UNDEFIND
ABSOLUTE MAXINUM RATINGS (Ta=25°C Unless otherwise noted)
Parameter
Symbol
Vcc
Isink
Vo
Supply Voltage
Output Sink Current
Output Voltage
Pd
Power Dissipation
K0
-
Thermal Derating
Topr
Tstg
Test condition
Output with open collector
8
6
8
Unit
V
mA
V
3pin SOP(SOT-23)
200
mW
2
mW/ °C
Ta≥25°C
Ratings
3pin SOP
Operating Temperature
Storage Temperature
-30 to +85
-40 to +125
°C
°C
ELECTRICAL CHARACTERISTICS (Ta=25°C, Unless otherwise noted)
Symbol
VS
∆VS
VS/∆T
ICC
Vsat
VOPL
IOH
tPD
Parameter
Test condition
Detecting Voltage
Hysterisis Voltage
Detecting Voltage
Temperature Coefficient
Circut Current
VCC=5V
Output Saturation Voltage VCC=3.5V,Isink=4mA
Threshold
Minimum supply voltage RL=2.2kΩ,Vsat≤0.4V
for IC operation
RL=100kΩ,Vsat≤0.4V
Operating Voltage
Output Leak Current
MIN
Limits
TYP
MAX
3.84
50
4.00
80
4.16
110
0.01
400
0.2
0.7
0.6
Ta= - 30 to + 85 °C
200
Deray Time
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400
Unit
V
mV
%/ °C
600
0.4
0.8
0.7
30
1
800
µA
V
V
nA
µA
ms
1998-8-25
MITSUBISHI Dig./Ana.INTERFACE
M62781GP
VOLTAGE DETECTING, SYSTEM RESETTING IC SERIES
Example of application circuit
Reset Circuit of M627XX Series
VCC
SUPPLY
VOLTAGE
SUPPLY
VOLTAGE
RL
OUTPUT
RESET(RESET)
M62781GP
LOGIC CIRCUIT
GND
GND
Note 1.
The logic circuit preferably should not
have a pull-down resistor,but if one is present,add load resistor RL to overcome the pulldown resistor.
!
Mitsubishi Electric Corporation puts the maximum effort into making semiconductor products better and more reliable,
but there is always the possibility that trouble may occur with them. Trouble with semiconductors may lead to personal
injury,fire or property damage.Remember to give due consideration to safety when making your circuit design,in order
to prevent fires from spreading,redundancy,malfunction or other mishap.
( 3 / 4 )
1998-8-25
MITSUBISHI Dig./Ana.INTERFACE
M62781GP
VOLTAGE DETECTING, SYSTEM RESETTING IC SERIES
PACKCAGE OUTLINE
SOT-23
Dimension : mm
2.5
+0.25
-0.15
1.5
0.5
+0.25
-0.15
0.4 -0.05
0.8
0.95
0.95
1.90
0 ~ 0.1
0.8
0.16 -0.06
+0.10
0.95 0.95
1.90
+0.2
1.1 -0.1
2.9±0.2
+0.10
0.5
+0.5
-0.3
1.0
2.4
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1998-8-25