AUIR33401S Datasheet, PDF (1/18 Pages) International Rectifier – PROTECTED HIGH SIDE SWITCH FOR AUTOMOTIVE DC MOTOR DRIVE

August 2008
Automotive Grade
AUIR33401S
PROTECTED HIGH SIDE SWITCH
FOR AUTOMOTIVE DC MOTOR DRIVE
Features
• Up to 20Khz PWM switching capability
• Charge pump for DC operation
• Active Dv/Dt control
• Load current feedback
• Short-circuit protection
• Programmable over current shutdown
• Over temperature shutdown
• Under voltage shutdown
• Gnd, IN and bootstrap pin loss protection
• E.S.D protection
• Low power mode
• Leadfree, RoHS compliant
• Automotive qualified*
Description
The AUIR33401S 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 10A to
33A. Over-current, over-temperature latch OFF the power
switch, providing a digital diagnostic status on the input pin. In
sleep mode, the device consumes less than 10uA.
Further integrated protections such as ESD, GND and Cboot
disconnect protection guarantee safe operation in harsh
conditions of the automotive environment.
Product Summary
Rds(on)@25°C 3.5mΩ max.
Max current
33A
Operating voltage 6 – 18V
Application
• Fan engine cooling
• Air conditioning blower
• Pumps (oil, fuel, water…)
• Compressor
Package
D2Pak - 7 leads
* Qualification standards can be found on IR’s web
site ww.irf.com
© 2007 International Rectifier
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