AUIR2085S_15 Datasheet, PDF (1/16 Pages) International Rectifier – HIGH SPEED, 100V, SELF OSCILLATING

Sept 26, 2014
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-
bridge DC-Bus Converters for 48V distributed systems
Topology
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
MOSFETs
 Adjustable dead-time 50ns – 200ns
Deadtime
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
VBIAS ( 10 V – 15V)
DBOOT
C BOOT
VIN ( 100 V max)
VB
S1
VCC
HO
RT
OSC VS
CT
S2
CS
LO
CBIAS
COM
C
R VO
L
+
* Qualification standards can be found on IR’s web site www.irf.com
© 2014 International Rectifier