AUIR3330S_15 Datasheet, PDF (1/30 Pages) International Rectifier – PROTECTED HIGH FREQUENCY HIGH SIDE SWITCH

Automotive Grade
AUIR3330S
PROTECTED HIGH FREQUENCY HIGH SIDE SWITCH
Features
Up to 30Khz PWM switching capability
Charge pump for DC operation
Active di/dt control to reduce EMI
Load current feedback
Short-circuit protection
Programmable over current shutdown
Over temperature shutdown
Diagnostic feedback
Under voltage shutdown
Gnd, IN and bootstrap pin loss protection
E.S.D protection
Low power mode
Lead-free, RoHS compliant
Applications
Fan engine cooling
Air conditioning blower
Pumps (oil, fuel, water…)
Compressor
Package
D2Pak - 7 leads
Description
The AUIR3330s is a 7 terminals high side switch for variable speed DC motor. It features simplify the design of
the DC motor drive with a microcontroller. The Mosfet switches the power load proportionally to the input signal
duty cycle at the same frequency and provides a current feedback on the Ifbk pin. The over-current shutdown is
programmable from 5A to 50A. Over-current, over-temperature latch OFF the power switch and provide a digital
diagnostic status on the input pin. In sleep mode, the device consumes typically less then 1uA.
Further integrated protections such as ESD and GND disconnect protection guarantee safe operation in harsh
conditions of the automotive environment.
Typical connection with reverse battery protection
1 www.irf.com © 2012 International Rectifier
May 29, 2014