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SLOS243B − DECEMBER 1999 − REVISED JUNE 2000
DCA PACKAGE
(TOP VIEW)
D
Extremely Efficient Class-D Stereo
Operation
D
D
D
D
D
D
Drives L and R Channels
1
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
SHUTDOWN
MUTE
COSC
AGND
AGND
RINN
2
10-W BTL Output Into 4 Ω From 12 V
32-W Peak Music Power
3
AGND
LINN
LINP
LCOMP
AGND
4
Fully Specified for 12-V Operation
Low Shutdown Current
5
RINP
6
RCOMP
FAULT0
FAULT1
7
Thermally-Enhanced PowerPAD Surface-
Mount Packaging
8
V
DD
9
LPV
RPV
DD
DD
D
Thermal and Under-Voltage Protection
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
LOUTP
LOUTP
PGND
PGND
LOUTN
LOUTN
ROUTP
ROUTP
PGND
PGND
ROUTN
ROUTN
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.
LPV
RPV
DD
DD
V
REG
NC
V
CC
NC
NC
CC
NC
AGND
PV
V2P5
PV
DD
DD
VCP
NC
CP1
PGND
NC
CP2
NC − No internal connection
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).
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.
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Copyright 2000, Texas Instruments Incorporated
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265