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| IR3311 Datasheet, PDF (1/12 Pages) International Rectifier – PROGRAMMABLE CURRENT SENSING HIGH SIDE SWITCH | |||
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Data Sheet No.PD60210_C
IR3311(S)
PROGRAMMABLE CURRENT SENSING HIGH SIDE SWITCH
Features
⢠Load current feedback
⢠Programmable over current shutdown
⢠Active clamp
⢠E.S.D protection
⢠Input referenced to Vcc
⢠Over temperatue shutdown
⢠Reverse battery protection
Description
The IR 3311(S) is a Fully Protected 4 terminal high side switch.
The input signal is referenced to Vcc. When the input voltage
Vcc - Vin is higher than the specified Vih threshold, the output
power MOSFET is turned-on. When Vcc - Vin is lower than
the specified Vil threshold, the output MOSFET is turned-off.
A sense current proportional to the current in the power Mosfet
is sourced to the Ifb pin. Over-current shutdown occurs when
Vifb - Vin > 4.5 V. The current shutdown threshold is adjusted
by selecting the proper RIfb. Either over-current and over-tem-
perature latches off the switch. The device is reset by pulling
the input pin high. Other integrated protections ( ESD, reverse
battery, active clamp ) make the IR3311(S) very rugged and
suitable for the automotive environment.
Product Summary
Rds(on)
Vcc.op.
Current ratio
12mâ¦
6 to 28V
5300
Ishutdown
6A to 58A
Active clamp 35V
Load Dump
40V
Package
5 Lead TO220
IR3311
5 Lead
D2Pak (SMD220)
IR3311S
Typical Connection
VCC
on
off
IN IR 3311
Battery
Ifb
10 k
RIfb
System
Ground
OUT
LOAD
Power
Ground
www.irf.com
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