TPA032D02

10-W STEREO CLASS-D AUDIO POWER AMPLIFIER

SLOS243A – DECEMBER 1999 – REVISED MARCH 2000

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POST OFFICE BOX 655303

Operation

Mount Packaging

description

The TPA032D02 is a monolithic power IC stereo

audio amplifier that operates in extremely efficient

Class-D operation, using the high switching speed

of power DMOS transistors to replicate the analog

input signal through high-frequency switching of

the output stage. This allows the TPA032D02 to

be configured as a bridge-tied load (BTL) amplifier

capable of delivering up to 10 W of continuous

average power into a 4-

Ω load at 0.5% THD+N

from a 12-V power supply in the high-fidelity audio

frequency range (20 Hz to 20 kHz). A BTL

configuration eliminates the need for external

coupling capacitors on the output. A chip-level

shutdown control is provided to limit total supply

current to 20

µA, making the device ideal for

battery-powered applications.

The output stage is compatible with a range of power supplies from 8 V to 14 V. Protection circuitry is included

to increase device reliability: thermal and under-voltage shutdown, with a status feedback terminal for use when

any error condition is encountered.

The high switching frequency of the TPA032D02 allows the output filter to consist of three small capacitors and

two small inductors per channel. The high switching frequency also allows for good THD+N performance.

The TPA032D02 is offered in the thermally enhanced 48-pin PowerPAD TSSOP surface-mount package

(designator DCA).

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.

PowerPAD is a trademark of Texas Instruments Incorporated.

SHUTDOWN

MUTE

AGND

LINN

LINP

LCOMP

AGND

LOUTP

LOUTP

PGND

PGND

LOUTN

LOUTN

NC

NC

AGND

VCP

NC

CP1

COSC

AGND

AGND

RINN

RINP

RCOMP

FAULT0

FAULT1

ROUTP

ROUTP

PGND

PGND

ROUTN

ROUTN

NC

NC

V2P5

PGND

NC

CP2

NC – No internal connection

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DCA PACKAGE

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