AAT4282AIPS-3-T1(2007) 데이터 시트보기 (PDF) - Advanced Analogic Technologies

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AAT4282AIPS-3-T1
(Rev.:2007)

Dual Slew Rate Controlled Load Switch

Advanced Analogic Technologies 

Functional Block Diagram

INA

ON/OFF A

AAT4282A

Dual Slew Rate Controlled Load Switch

Level

Shift

Turn-On Slew

Rate Control

*

OUTA

FAST /

SLOW

INB

ON/OFF B

Level

Shift

Turn-On Slew

Rate Control

*

OUTB

* AAT4282A-3 version only

GND

Functional Description

The AAT4282A is a family of flexible dual P-chan-

nel MOSFET power switches designed for high-

side load switching applications. There are three

versions of the AAT4282A with different turn-on

and turn-off characteristics to choose from,

depending upon the specific requirements of an

application. The first version, the AAT4282A-1,

has a moderate turn-on slew rate feature, which

reduces in-rush current when the MOSFET is

turned on. This function allows the load switch to

be implemented with either a small input capacitor

or no input capacitor at all. During turn-on slew-

ing, the current ramps linearly until it reaches the

level required for the output load condition. The

8

4282A.2007.09.1.1

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