VOLTAGE DETECTING, SYSTEM RESETTING IC SERIES
GENERAL DESCRIPTION
The M62720GP 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
MITSUBISHI STD-LINEAR
M62720GP
PIN CONFIGURATION (TOP VIEW)
2
GND
3
M62720GP
Outline SOT-23
1
OUTPUT
SUPPLY
VOLTAGE
BLOCK DIAGRAM
R1
R2
M62720GP
SUPPLY VOLTAGE
1
-
+
1.25V
1
3
GND
OSC
COUNTER
2
OUTPUT
1
( / 4 )
1998-10-6
FUNCTION DIAGRAM
MITSUBISHI STD-LINEAR
M62720GP
VOLTAGE DETECTING, SYSTEM RESETTING IC SERIES
SUPPLY
VOLTAGE
3.70V
0.65V
OUTPUT
STATE
OUTPUT
UNDEFIND
H
L
"L" RESET TYPE
t
td td
t
td≈50msec
ABSOLUTE MAXINUM RATINGS (Ta=25°C Unless otherwise noted)
Symbol
Vcc
Isink
Vo
Pd
K
-
0
Topr
Tstg
Parameter
Supply Voltage
Output Sink Current
Output Voltage
Power Dissipation
Thermal Derating
Operating Temperature
Storage Temperature
Output with open collector
Test condition
3pin SOP(SOT-23)
Ta≥25°C
3pin SOP
Ratings Unit
8
6
8
200
2
-30 to +85
-40 to +125
mA
mW
mW/ °C
°C
°C
V
V
ELECTRICAL CHARACTERISTICS (Ta=25°C, Unless otherwise noted)
Symbol Parameter
VS
∆VS
VS/∆T
ICC
Vsat
VOPL
IOC
VOH
tPD
Detecting Voltage
Hysteresis Voltage
Detecting Voltage
Temperature Coefficient
Circuit Current
Output Saturation Voltage
Threshold
Operating Voltage
Output Load Current
Output HIGH Voltage
Propagation Delay Time
VCC=5.0V
VCC=3.5V,Isink=4mA
Minimum supply voltage
for IC operation
VCC=5V,VO=1/2VCC
Test condition
RL=2.2kΩ,Vsat≤0.4V
RL=100kΩ,Vsat≤0.4V
( / 4 )
2
MIN
3.56
50
-40
VCC-0.2 VCC-0.06
30
Limits
TYP MAX
3.70
80
0.01
400
0.2
0.7
0.6
-25
50
3.86
110
600
70
%/°C
0.4
0.8
0.7
-17
1998-10-6
Unit
V
mV
µA
V
V
µA
V
ms