Data Sheet No. PD60288 revB

IR3313SPbF

PROGRAMMABLE CURRENT SENSE HIGH SIDE SWITCH

Features

•

Load current feedback

•

Programmable over current shutdown

n

to Vcc

wn

is a fully protected 4 terminals high side

•

Active clamp

•

ESD protectio

•

Input referenced

•

Over temperature shutdo

•

Reverse battery protection

Description

The IR3313SPbF

switch. The input signal is referenced to Vcc. 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. A current proportional to the

power Mosfet current is sourced to the Ifb pin. Over

current shutdown occurs when Vst-Vin > 4.5V. The current

shutdown threshold is adjusted by selecting the proper

RIfb. Either over current and over temperature latches off

the switch. The device is reset by pulling the input pin

high. Other integrated protections (ESD, reverse battery,

active clamp) make the switch very rugged in automotive

environment.

Product Summary

Rds(on)

7 m

Ω max.

Vcc op.

6 to 32V

Current Ratio

8800

Prog. Ishutdown

10 to 90A

Vclamp

40V

Packages

D²Pak

Pin 4 and 5 fused

IR3313SPbF

Typical Connection

Out

IR3313

IN

Rifb

Vcc

Load

Battery

Input

Power

Ground

Ifb

Logic

Ground

Current feeback

10k

On

Off

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