August, 27th 2009

Automotive grade

AUIPS7121R

www.irf.com

Subject to change without notice

1

CURRENT SENSE HIGH SIDE SWITCH

Features

•

Suitable for 24V systems

Over current shutdown

•

•

Over temperature shutdown

n/Off for EMI

sfet on)

lly protected five terminal high

•

Current sensing

•

Active clamp

•

Optimized Turn O

•

Reverse battery protection (Mo

Applications

amp

•

75W Filament l

•

Solenoid

•

24V loads for trucks

Description

is a fu

The AUIPS7121R

side switch specifically designed for driving lamp. It

features current sensing, over-current, over-temperature,

ESD protection and drain to source active clamp. When

the input voltage Vcc - Vin is higher than the specified

threshold, the output power Mosfet is turned on. When the

Vcc - Vin is lower than the specified Vil threshold, the

output Mosfet is turned off. The Ifb pin is used for current

sensing. The over-current shutdown is higher than inrush

current of the lamp.

Product Summary

Rds(on)

Vclamp

65V

Current shutdown

50A min.

Packages

DPak

Typical Connection

Out

AUIPS7121R

IN

Rifb

Vcc

Load

Battery

Input

Power

Ground

Ifb

Logic

Ground

Current feeback

10k

On

Off