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
Product Summary
V
OFFSET
(max)
Io+ (typical)
Io – (typical)
Selectable Deadtime
OC protection delay (max)
DC offset
PWM frequency
Error amplifier open loop gain
THD+N* (1kHz, 50W, 4Ω)
Residual Noise*
(AES-17 Filter)
Gate driver
±
100 V
1.0 A
1.2 A
25/40/65/105 ns
500 ns
<20 mV
~800 kHz
>60 dB
0.01 %
200 µVrms
* measured with recommended circuit
Typical Applications
•
•
•
Automotive mini component stereo systems
Automotive powered speaker systems
Automotive audio power amplifiers
Package Options
SOIC-16L Narrow Body
Typical Connection Diagram
AUIRS2092
1
+B
16
15
14
13
12
11
10
9
VAA
GND
IN-
COMP
CSD
VSS
VREF
OCSET
CSH
VB
HO
VS
VCC
LO
COM
DT
INPUT
2
3
4
5
6
7
8
Speaker
Vcc
12V
-B
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© 2007 International Rectifier
AUIRS2092S
Table of Contents
Description
Simplified Block Diagram
Typical Application Diagram
Qualification Information
Absolute Maximum Ratings
Recommended Operating Conditions
Electrical Characteristics
Waveform Definitions
Functional Block Diagram
Input/Output Pin Equivalent Circuit Diagram
Lead Definitions
Lead Assignments
Parameter Temperature Trends
Package Details
Tape and Reel Details
Part Marking Information
Ordering Information
Page
3
4
4
5
6
7
8-10
11
12
13
14
14
15-19
19
20
21
21
www.irf.com
© 2007 International Rectifier
2
AUIRS2092S
Description
The AUIRS2092 is a high voltage, high performance Class D audio amplifier driver with PWM modulator and
protection. In conjunction with two external MOSFET and a few external components, a complete Class D audio
amplifier with protection can be realized.
International Rectifier’s proprietary noise isolation technology allows high current gate drive stage and high speed
low noise error amplifier reside on a single small silicon die.
Open elements of PWM modulator section allow flexible PWM topology implementation.
www.irf.com
© 2007 International Rectifier
3
AUIRS2092S
Simplified Block Diagram
Typical Application Diagram
Refer to IRAUDAMP5 reference design for details.
www.irf.com
© 2007 International Rectifier
4
4.7
Ω
1 kΩ
AUIRS2092S
Qualification Information
†
Qualification Level
Automotive
(per AEC-Q100
††
)
Comments: This family of ICs has passed an Automotive
qualification. IR’s Industrial and Consumer qualification level
is granted by extension of the higher Automotive level.
SOIC16N
MSL3
†††
260°C
(per IPC/JEDEC J-STD-020)
Class M2 (+/-150V)
(per AEC-Q100-003)
Class H1B (+/-750V)
(per AEC-Q100-002)
Class C3A (+/-750V)
(per AEC-Q100-011)
Class II, Level B
††††
(per AEC-Q100-004)
Yes
Moisture Sensitivity Level
Machine Model
ESD
Human Body Model
Charged Device Model
IC Latch-Up Test
RoHS Compliant
†
††
†††
Qualification standards can be found at International Rectifier’s web site
http://www.irf.com/
Exceptions to AEC-Q100 requirements are noted in the qualification report.
Higher MSL ratings may be available for the specific package types listed here. Please contact your
International Rectifier sales representative for further information.
†††† CSD pin stressed to +/-20mA, CSH pin stressed to +/-40mA, DT and OCSET pins stressed to +/-20mA
www.irf.com
© 2007 International Rectifier
5
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