Datasheet > G547H2P81U

G547H2P81U

更新时间： 2024-11-15 02:48:55

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描述
Power Distribution Switch

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数据手册

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G547H2P81U 数据手册

G547E/F/G/H/M

Global Mixed-mode Technology

Power Distribution Switch

Features

General Description

The G547 is an integrated power switch for

self-powered and bus-powered Universal Serial Bus

(USB) applications. G547E, G547F, G547G,G547H

ꢀ

90mΩ High-Side MOSFET

(G547E,G547F,G547G,G547H, G547M)

Available with 5 Versions of Current Limits with

Foldback

ꢀ

and G547M are 90mΩ R_DS(ON)

ꢀ

Operating Range:2.7V to 5.5V

1mS Typical Rise Time

Fast Overcurrent Response -3ꢀs (TYPICAL)

Under voltage Lockout

100ꢀA Quiescent Supply Current

1ꢀA Maximum Shutdown Supply Current

Several Protection features include current limiting with

foldback, and thermal shutdown to prevent catastrophic

switch failure caused by increasing power dissipation

when continuous heavy loads or short circuit occurs. A

built-in charge pump is used to drive the N-channel

MOSFET that is free of parasitic body diode to elimi-

nate any reversed current flow across the switch when

it is powered off.

ꢀ Logic Level Enable Pin, Available with

Active-High or Active-Low Version

No Reverse Current when Power Off

ꢀ

ꢀ Deglitched Open-Drain Over-Current Flag

OC is open-drain output report over-current or

over-temperature event and has typical 9ms deglitch

timeout period.

Output (OC )

ꢀ

With Output Shutdown Pull-low Resister

SOT-23-6, SOP-8, MSOP-8 and TDFN3X3-8 Pack-

ages

Applications

ꢀ

UL Approved_#E232223

ꢀ

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

ꢀ Nemko IEC 60950-1 CB/CCA_scheme Certifica-

tion Report #67291

Pin Configuration

Typical Application Circuit

G547

OUT

OUT*

GND

EN (EN)

GND

OUT

G547

Power Supply

2.7V to 5.5V

OUT

Load

EN (EN)

1ꢀF

22ꢀF

0.1ꢀF

SOT-23-6

SOP-8/MSOP-8

G547

EN(EN)

OFF

OUT

OUT*

GND

Thermal

Pad

EN (EN)

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

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

TDFN3X3-8

Note: Recommend connecting the Thermal Pad

to the GND for excellent power dissipation.

*Pin#6 should be considered as OUT when circuit design and PCB layout, but it is NC pin actually.

UL Recognized Component

Ver:1.5

Sep 08, 2011

12 3 4 5 6 7...15

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