AUIR2085S Datasheet, PDF (1/15 Pages) International Rectifier – HIGH SPEED, 100V, SELF OSCILLATING 50% DUTY CYCLE, HALF-BRIDGE DRIVER

July 13, 2009
Automotive Grade
AUIR2085S
HIGH SPEED, 100V, SELF OSCILLATING 50%
DUTY CYCLE, HALF-BRIDGE DRIVER
Features
Product Summary
• Simple primary side control solution to enable half-
Topology
bridge DC-Bus Converters for 48V distributed systems
with reduced component count and board space
V_OFFSET
• Integrated 50% duty cycle oscillator & half-bridge driver
IC in a single SO-8 package
I_o+ & I _o- (typical)
• Programmable switching frequency with up to 500kHz
max per channel
f_OSC (max)
• +/- 1A drive current capability optimized for low charge _Deadtime
MOSFETs
• Adjustable dead-time 50ns – 200ns
HO/LO Pulse Matching
• Floating channel designed for bootstrap operation up to
+100Vdc
• High and low side pulse width matching to +/- 25ns
Package Options
• Adjustable overcurrent protection
• Undervoltage lockout and internal soft start
• _{Leadfree, RoHS compliant}
• Automotive qualified*
Half-Bridge
≤ 100 V
1.0A & 1.0A
500kHz
50ns – 200ns
+/- 25ns
Typical Applications
• DC-DC Converters
• HEV Auxiliary Converter
• Battery Management Converters
8 - Lead SOIC
AUIR2085S
Typical Connection Diagram
COM
* Qualification standards can be found on IR’s web site www.irf.com
© 2008 International Rectifier