www.irf.com © 2007 International Rectifier
March 11, 2011
Automotive Grade
AUIRS2092S
PROTECTED DIGITAL AUDIO AMPLIFIER
Features
• Integrated analog input Class D audio amplifier
driver in a small 16 pin package
• Floating inputs enable easy half bridge
implementation
• Programmable bidirectional over-current
protection with self-reset function
• Programmable preset deadtime for improved
THD performances
• Start and stop click noise reduction
• High noise immunity
• ±100 V ratings deliver up to 500 W in output
power
• Operates up to 800 kHz
• Leadfree, RoHS compliant
• Automotive Qualified
†
Typical Applications
• Automotive mini component stereo systems
• Automotive powered speaker systems
• Automotive audio power amplifiers
Product Summary
V
OFFSET
(max)
± 100 V
Io+ (typical) 1.0 A
Gate driver
Io – (typical) 1.2 A
Selectable Deadtime 25/40/65/105 ns
OC protection delay (max) 500 ns
DC offset <20 mV
PWM frequency ~800 kHz
Error amplifier open loop gain >60 dB
THD+N* (1kHz, 50W, 4) 0.01 %
Residual Noise*
(AES-17 Filter)
200 µVrms
* measured with recommended circuit
Package Options
SOIC-16L Narrow Body
Typical Connection Diagram
AUIRS2092
12V
VAA
GND
IN-
OCSET
COM
COMP
VSS
LO
VCC
VREF
HO
VS
CSD
CSH
VB
INPUT
-B
Vcc
+B
Speaker
DT
2
161
4
3
5
6
7
8
15
14
13
12
11
10
9
