1441791 Datasheet, PDF (1/16 Pages) International Rectifier – PROGRAMMABLE CURRENT SENSE HIGH SIDE SWITCH

November, 14th 2010
Automotive grade
AUIR3314(S)
PROGRAMMABLE CURRENT SENSE HIGH SIDE SWITCH
Features
 Load current feedback
 Programmable over current shutdown
 Active clamp
 ESD protection
 Input referenced to Vcc
 Over temperature shutdown
 Reverse battery protection
 Lead-Free
Description
The AUIR3314(S) 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 Vifb-Vin > 4.7V. 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.
Typical Connection
Product Summary
Rds(on)
12 m max.
Vcc op.
6 to 32V
Current Ratio
5300
Prog. Ishutdown 6 to 58A
Vclamp
40V
Packages
TO-220
AUIR3314
D²Pak
Pin 4 and 5 fused
AUIR3314S
Current feeback
Input
On
Off
Vcc
IN ^AUIR3314
Ifb
Out
10k
Battery
Rifb
Logic
Ground
Power
Ground
Load
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