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Data Sheet No. PD60288_D
IR3313(S)PbF
PROGRAMMABLE CURRENT SENSE HIGH SIDE SWITCH
Features
Load current feedback
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1
Programmable over current shutdown
Active clamp
ESD protection
Input referenced to Vcc
Over temperature shutdown
Reverse battery protection
Description
The IR3313(S)PbF is a fully protected 4 terminals high
side 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 max.
Vcc op. 6 to 32V
Current Ratio 8800
Prog. Ishutdown 10 to 90A
Vclamp 40V
Packages
TO-220 D²Pak
IR3313 Pin 4 and 5 fused
IR3313S
Typical Connection
Out
IR3313
IN
Rifb
Vcc
Load
Battery
Input
Power
Ground
Ifb
Logic
Ground
Current feeback 10k
On
Off
