TPA302 Datasheet, PDF (1/21 Pages) Texas Instruments – 300-mW STEREO AUDIO POWER AMPLIFIER

TPA302
300-mW STEREO AUDIO POWER AMPLIFIER
D 300-mW Stereo Output
D PC Power Supply Compatibility 5-V and
3.3-V Specified Operation
D Shutdown Control
D Internal Mid-Rail Generation
D Thermal and Short-Circuit Protection
D Surface-Mount Packaging
D Functional Equivalent of the LM4880
SLOS174B – JANUARY 1997 – REVISE MARCH 2000
D PACKAGE
(TOP VIEW)
V_O1
1
8
IN1
SHUTDOWN
2
7
GND
BYPASS
3
6
V_DD
IN2
4
5
V_O2
description
The TPA302 is a stereo audio power amplifier capable of delivering 250 mW of continuous average power into
an 8-Ω load at less than 0.06% THD + N from a 5-V power supply or up to 300 mW at 1% THD + N. The TPA302
has high current outputs for driving small unpowered speakers at 8 Ω or headphones at 32 Ω. For headphone
applications driving 32-Ω loads, the TPA302 delivers 60 mW of continuous average power at less than 0.06%
THD + N. The amplifier features a shutdown function for power-sensitive applications as well as internal thermal
and short-circuit protection. The amplifier is available in an 8-pin SOIC (D) package that reduces board space
and facilitates automated assembly.
typical application circuit
Audio
Input
RI
CI
Audio
Input
CB
RI
CI
RF
8 ^{IN 1}
3 ^BYPASS
4 ^{IN 2}
2 ^SHUTDOWN
VDD/2
–
+
VDD 6
VO1 1
–
VO2 5
+
Bias
7
Control
VDD
CS
CC
CC
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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Copyright © 2000, Texas Instruments Incorporated
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