Datasheet > G5461

G5461

更新时间： 2024-11-15 01:25:51

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描述
Power Distribution Switch

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数据手册

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G5461 数据手册

Global Mixed-mode Technology Inc.

G5461

Power Distribution Switch

Features

General Description

The G5461 is an integrated 53mΩ power switch for

self-powered and bus-powered Universal Serial Bus

(USB) applications.

53mΩ High-Side MOSFET

Available with 4 Versions of Current Limits with

Foldback

Operating Range:2.7V to 5.5V

400µS Typical Rise Time

Under voltage Lockout

90µA Quiescent Supply Current

1µA Maximum Shutdown Supply Current

Logic Level Enable Pin, Available with

Active-High or Active-Low Version

No Reverse Current when Power Off

Deglitched Open-Drain Over-Current Flag

Several Protection features include current limiting

with foldback, and thermal shutdown to prevent catas-

trophic switch failure caused by increasing power dis-

sipation when continuous heavy loads or short circuit

occurs. And a built-in charge pump is used to drive the

N-channel MOSFET that is free of parasitic body diode

to eliminate any reversed current flow across the

switch when it is powered off.

Output (OC )

SOP-8 , MSOP-8 and TDFN3X3-8 Packages

OC is open-drain output report over-current or

over-temperature event and has typical 9ms deglitch

timeout period.

Applications

High-Side Power Protection Switch

USB Power Management

USB Host and Self-Powered Bubs

USB Bus-Powered Hubs

Hot Plug-In Power Supplies

Battery-Charger Circuits

Pin Configuration

Typical Application Circuit

G5461

GND

OUT

G5461

Power Supply

2.7V to 5.5V

OUT

Load

EN (EN)

1µF

22µF

0.1µF

SOP-8/MSOP-8

G5461

EN(EN)

OFF

*: 1µF of input capacitor is enough in most application cases.

GND

OUT

Thermal

Pad

If the PCB trace of power rail to IN is long, larger input capacitor is necessary.

EN (EN)

TDFN3X3-8

Note: Recommend connecting the Thermal Pad to

the Ground for excellent power dissipation.

TEL: 886-3-5788833

http://www.gmt.com.tw

Ver 0.3

Apr 12, 2011

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