Datasheet > G525A

G525A

更新时间： 2022-11-24 21:54:30

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致新 - GMT		开关电源开关
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描述
USB High-Side Power Switch Advance Information

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G525A 数据手册

Global Mixed-mode Technology Inc.

G525A

USB High-Side Power Switch Advance Information

Features

General Description

The G525A is an integrated high-side power switch

optimized for self-powered and bus-powered Universal

Serial Bus (USB) applications.

^ꢀTypical 110mΩ, Low MOSFET on resistance, at

5.0V

^ꢀ1A minimum continuous load current

^ꢀ3.0V to 5.5V operating range

^ꢀ100 µA typical on-state supply current

^ꢀ1 µA typical standby supply current

^ꢀOutput can be forced higher than input when

operating in off state.

The G525A satisfies the USB standards. The switch's

low on-resistance meets USB voltage drop require-

ments. When the output load exceeds current-limit

threshold, G525A switches into constant mode and

limit the output current to a safe level, which is typically

1.4A, well below the UL 25VA safety requirements. An

open-drain flag output is also available to indicate fault

conditions to the local USB controller. Soft start elimi-

nates the momentary voltage drop on the upstream port

that may occur when the switch is enabled in

bus-powered applications.

^ꢀ1.4A Typical current limit

^ꢀThermal shutdown protection

^ꢀ2.4V typical under-voltage lockout (UVLO)

^ꢀOpen-drain fault flag pin

^ꢀSlow turn-on (soft-start) and fast turnoff

^ꢀLogic level enable pin, available with active-

high or active-low version

^ꢀUL Approved_#E232223

Besides, a thermal shutdown circuit is included to pre-

vent catastrophic switch failure caused by increasing

power dissipation when continuous heavy loads or

short circuit occurs. A under-voltage lockout (UVLO)

circuit ensures that the device remains off unless there

is a valid input voltage present, and an enable input

that is compatible with both 3.3V and 5V logic.

Applications

^ꢀHigh-side power protection switch

^ꢀUSB power management

^ꢀUSB host and self-powered hubs

^ꢀUSB Bus-powered hubs

^ꢀHot plug-in power supplies

^ꢀBattery-charger circuits

The G525A is a UL recognized component and is

available in active-high and active-low versions in 8-pin

SOP packages.

Ordering Information

PART

ENABLE

TEMP. RANGE

-40°C to ＋85°C

PACKAGE

8-Pin SOP

G525A1 Active High

G525A2 Active Low

Pin Configuration

G525A

6,8 (OUT)

7 (IN)

OUT

(EN)1

Gate

FLG

Control

(FLG)2

OUT

GND

3 (GND)

8 Pin Function Block

8 Pin SOP

UL Recognized Component

TEL: 886-3-5788833

http://www.gmt.com.tw

Ver: 1.2

Nov 11, 2002

12 3 4 5 6 7 8

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