Datasheet > G692L438TAU

G692L438TAU

更新时间： 2023-07-15 00:00:00

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Power Management Circuit

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G692L438TAU 数据手册

Global Mixed-mode Technology Inc.

G692/G693

4-Pin µP Voltage Monitors with Manual Reset Input

Features

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 provide a de-

bounced manual reset input.

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)

140ms Min Power-On Reset Pulse Width

14µA Supply Current

Guaranteed Reset Valid to V_CC= +1V

Power Supply Transient Immunity

No External Components

These circuits perform a single function: they assert a

reset signal whenever the V_CCsupply voltage declines

below a preset threshold, keeping it asserted for at

least 140ms after V_CChas risen above the reset

threshold. Reset thresholds suitable for operation with

a variety of supply voltages are available.

Manual Reset Input

4-Pin SOT-143 and 5-Pin SC-70 Package

2% Threshold Accuracy

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.

Applications

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_CCdown to 1V.

Computers

Controllers

Intelligent Instruments

Critical µP and µC Power Monitoring

Portable / Battery-Powered Equipment

Automotive

Low supply current makes the G692/G693 ideal for use

in portable equipment. The G692/G693 are available in

a 4-pin SOT-143 and 5-Pin SC-70 packages.

Ordering Information

ORDER NUMBER

TEMP. RANGE

PACKAGE

(Pb free)

G692HxxxTCU

G692LxxxTCU

G692HxxxTCUf

G692LxxxTCUf

G693LxxxTCUf

G692HxxxTAUf

G692LxxxTAUf

G693LxxxTAUf

-40°C~+105°C

SOT-143

SC-70-5

G693LxxxTCU

G692HxxxTAU

G692LxxxTAU

G693LxxxTAU

xxx specifies the threshold

e.g. 263 denotes voltage the 2.64V threshold voltage.

Pin Configuration

Typical Application Circuit

G692/G693

V_CC

VCC

GND

VCC

GND

VCC

R_PULL-UP

µP

RESET

INPUT

G692/G693

RESET

(RESET)

VCC

RESET

GND

(RESET)

GND

SC-70-5

SOT-143

*G693 ONLY

()is for G692H

TEL: 886-3-5788833

http://www.gmt.com.tw

Ver: 1.7

May 19, 2006

12 3 4 5 6 7 8

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