TPA302

300-mW STEREO AUDIO POWER AMPLIFIER

SLOS174B – JANUARY 1997 – REVISE MARCH 2000

1

POST OFFICE BOX 655303

3.3-V Specified Operation

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

Bias

Control

6

1

5

7

VO1

VO2

VDD

2

8

3

4

IN 1

BYPASS

SHUTDOWN

VDD/2

CI

RI

RF

CB

CS

Audio

Input

CI

RI

IN 2

VDD

–

+

–

+

CC

CC

Copyright

© 2000, Texas Instruments Incorporated

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.

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.

1

2

3

4

8

7

6

5

SHUTDOWN

BYPASS

IN2

IN1

GND

D PACKAGE

(TOP VIEW)