G692 Datasheet, PDF (1/1 Pages) List of Unclassifed Manufacturers – 4-Pin UP Voltage Monitors with Manual Reset Input

Global Mixed-mode Technology
G692/G693
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
„ Available in Three Output Configurations
Push-Pull RESET Output (G692L)
Push-Pull RESET Output (G692H)
Open-Drain RESET Output (G693L)
„ 230ms Min Power-On Reset Pulse Width
„ 14µA Supply Current
„ Guaranteed Reset Valid to V_CC = +1V
„ Power Supply Transient Immunity
„ No External Components
„ Manual Reset Input
„ SOT-143, SC-70-5(SOT-353) and SOT-23-5 Pack-
age
„ 2% Threshold Accuracy
Applications
„ Computers
„ Controllers
„ Intelligent Instruments
„ Critical µP and µC Power Monitoring
„ Portable / Battery-Powered Equipment
„ Automotive
General Description
The G692/G693 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
adjustments when used with +5V, +3.3V, +3.0V- pow-
ered circuits. The G692/G693 also provides a de-
bounced 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 230ms after V_CC has risen above the reset
threshold. Reset thresholds suitable for operation with
a variety of supply voltages are available.
The G693L has an open-drain output stage, while the
G692 have push-pull outputs. The G693L’s open-drain
RESET output requires a pull-up resistor that can be
connected to a voltage higher than V_CC.
The G692L have an active-low RESET output, while
the G692H has an active-high RESET output. The re-
set comparator is designed to ignore fast transients on
V_CC, and the outputs are guaranteed to be in the cor-
rect logic state for V_CC down to 1V.
Low supply current makes the G692/G693 ideal for use
in portable equipment. The G692/G693 are available in
a SOT-143, SC-70-5(SOT-353), SOT-23-5 packages.
Pin Configuration
Typical Application Circuit
GND 1
G692/G693
5 MR
GND 2
G692/G693
GND ₁
RESET 3
(RESET)
4 VCC
4 VCC
SC-70-5 (SOT-353)
RESET 2
(RESET)
SOT-143
3 MR
GND 1
G692/G693
5 VCC
NC 2
()is for G692H
RESET 3
(RESET)
SOT-23-5
4 MR
V_CC
VCC
G692/G693
MR
RESET
(RESET)
GND
VCC
* RPULL-UP
µP
RESET
INPUT
GND
*G693 ONLY
ICC may increased at high TA, Therefore, can not connect
Resistors to VCC to prevent Icc abnormal behavior at high TA.
Ver: 2.5
Apr 10, 2012
TEL: [phone]
http://www.gmt.com.tw
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