February, 28th 2011

Automotive grade

INTELLIGENT POWER LOW SIDE SWITCH

Features



Over temperature shut own

www.irf.com

1

d



Over current shutdown



Active clamp



Low current & logic level input



ESD protection



Optimized Turn On/Off for EMI



Diagnostic on the input current

Description

The AUIPS1021(S)(R) is a three terminal Intelligent Power

Switch (IPS) that features a low side MOSFET with over-

current, over-temperature, ESD protection and drain to

source active clamp. This device offers protections and

the high reliability required in harsh environments. The

switch provides efficient protection by turning OFF the

power MOSFET when the temperature exceeds 165°C or

when the drain current reaches 45A. The device restarts

once the input is cycled. A serial resistance connected to

the input provides the diagnostic. The avalanche capability

is significantly enhanced by the active clamp and covers

most inductive load demagnetizations.

Product Summary

Rds(on)

Vclamp

39V

Ishutdown

45A (typ.)

Packages

TO-220

D²Pak

D-Pak

AUIPS1021

AUIPS1021S

AUIPS1021R

Typical Connection

+Bat

S

Load

Control

IN

Input R

D

Input Signal

2

3

V Diag