G632 Datasheet, PDF (1/1 Pages) Global Mixed-mode Technology Inc – 4-Pin P Voltage Monitors with Manual Reset Input

Global Mixed-mode Technology
G632
4-Pin µP Voltage Monitors with Manual Reset Input
Features
„ Precision Monitoring of +3V, +3.3V, and +5V
Power-Supply Voltages
„ Fully Specified Over Temperature
„ Push-Pull Active-low RESET Output
„ 220ms Min Power-On Reset Pulse Width
„ 10µA Supply Current
„ Guaranteed Reset Valid to V_CC = +1V
„ Power Supply Transient Immunity
„ No External Components
„ Manual Reset Input
„ SOT-143 Package
„ 2% Threshold Accuracy
Applications
„ Computers
„ Controllers
„ Intelligent Instruments
„ Critical µP and µC Power Monitoring
„ Portable / Battery-Powered Equipment
„ Automotive
General Description
The G632 are microprocessor (µP) supervisory circuits
used to monitor the power supplies in µP and digital
systems. They provide excellent circuit reliability and
low cost by eliminating external components and ad-
justments when used with +5V, +3.3V, +3.0V- powered
circuits. The G632 also provides a debounced manual
reset input.
These circuits perform a single function: they assert a
reset signal whenever the V_CC supply voltage declines
below a preset threshold, keeping it asserted for at
least 220ms after V_CC has risen above the reset
threshold. Reset thresholds suitable for operation with
a variety of supply voltages are available.
The G632 have a push-pull and active-low RESET
output. The reset comparator is designed to ignore fast
transients on V_CC, and the outputs are guaranteed to
be in the correct logic state for V_CC down to 1V.
Low supply current makes the G632 ideal for use in
portable equipment. The G632 are available in a
SOT-143 packages.
Ordering Information
ORDER
NUMBER
MARKING
G632L293TC1U
Note: TC: SOT-143
1: Bonding Code
U: Tape & Reel
632Ax
Pin Configuration
RESET
THRESHOLD(V)
2.93
TEMP.
RANGE
-40°C ~ +105°C
OUTPUT TYPE
Push-Pull
Typical Application Circuit
PACKAGE
(Green)
SOT-143
GND 1
G632
4 VCC
RESET ²
3 _MR
SOT-143
V_CC
VCC
G632
MR RESET
VCC
R_PULL-UP
µP
RESET
INPUT
GND
GND
ICC may increased at high TA, Therefore, can not connect
Resistors to VCC to prevent Icc abnormal behavior at high TA.
Ver: 0.1
Mar 07, 2013
TEL: [phone]
http://www.gmt.com.tw
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