* Qualification standards can be found on IR’s web site www.irf.com

© 2014 International Rectifier

Sept 26, 2014

Automotive Grade

AUIR2085S

HIGH SPEED, 100V, SELF OSCILLATING 50%

DUTY CYCLE, HALF-BRIDGE DRIVER

Features



Simple primary side control solution to enable half-

bridge DC-Bus Converters for 48V distributed systems

with reduced component count and board space



Integrated 50% duty cycle oscillator & half-bridge driver

IC in a single SO-8 package



Programmable switching frequency with up to 500kHz

max per channel



+/- 1A drive current capability optimized for low charge

MOSFETs



Adjustable dead-time 50ns – 200ns



Floating channel designed for bootstrap operation up to

+100Vdc



High and low side pulse width matching to +/- 25ns



Adjustable overcurrent protection



Undervoltage lockout and internal soft start



Leadfree, RoHS compliant



Automotive qualified*

Typical Applications



DC-DC Converters



HEV Auxiliary Converter



Battery Management Converters

Product Summary

Topology

Half-Bridge

≤ 100 V

1.0A & 1.0A

500kHz

Deadtime

50ns – 200ns

HO/LO Pulse Matching

+/- 25ns

Package Options

8 - Lead SOIC

AUIR2085S

Typical Connection Diagram

OSC

HO

LO

S1

S2

L

C

+

COM