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TPA032D04DCA Datasheet

  • TPA032D04DCA

  • 10-W STEREO CLASS-D AUDIO POWER AMPLIFIER

  • 350.68KB

  • 24頁

  • TI

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TPA032D04
10-W STEREO CLASS-D AUDIO POWER AMPLIFIER
SLOS203A 鈥?DECEMBER 1999 鈥?REVISED MARCH 2000
D
D
D
D
D
D
D
D
D
Extremely Efficient Class-D Stereo
Operation
Drives L and R Channels, Plus Stereo
Headphones
10-W BTL Output Into 4
鈩?/div>
From 12 V
32-W Peak Music Power
Fully Specified for 12-V Operation
Low Shutdown Current
Class-AB Headphone Amplifier
Thermally-Enhanced PowerPAD鈩?Surface-
Mount Packaging
Thermal and Under-Voltage Protection
DCA PACKAGE
(TOP VIEW)
description
The TPA032D04 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 TPA032D04 to
be configured as a bridge-tied load (BTL) amplifier
capable of delivering up to 10 W of continuous
average power into a 4-鈩?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. Included is a Class-AB headphone amplifier with interface logic to select
between the two modes of operation. Only one amplifier is active at any given time, and the other is in
power-saving sleep mode. Also, a chip-level shutdown control is provided to limit total supply current to 20
碌A,
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 TPA032D04 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 TPA032D04 is offered in the thermally enhanced 48-pin PowerPAD TSSOP surface-mount package
(designator DCA).
SHUTDOWN
MUTE
MODE
LINN
LINP
LCOMP
AGND
V
DD
LPV
DD
LOUTP
LOUTP
PGND
PGND
LOUTN
LOUTN
LPV
DD
HPREG
HPLOUT
HPLIN
AGND
PV
DD
VCP
HPDL
CP1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
COSC
AGND
AGND
RINN
RINP
RCOMP
FAULT0
FAULT1
RPV
DD
ROUTP
ROUTP
PGND
PGND
ROUTN
ROUTN
RPV
DD
HPV
CC
HPROUT
HPRIN
V2P5
PV
DD
PGND
HPDR
CP2
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.
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.
Copyright
漏
2000, Texas Instruments Incorporated
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265
1

TPA032D04DCA 產品屬性

  • 40

  • 集成電路 (IC)

  • 線性 - 音頻放大器

  • -

  • D 類

  • 2-通道（立體聲）帶立體聲耳機

  • 10W x 2 @ 4 歐姆; 50mW x 2 @ 32 歐姆

  • 8 V ~ 14 V

  • 消除爆音，差分輸入，靜音，關機，熱保護

  • 表面貼裝

  • 48-HTSSOP

  • 48-TFSOP（0.240"，6.10mm 寬）裸露焊盤

  • 管件

  • 296-2464-5

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