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参数资料
| 型号： | TPA032D04DCARG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 10 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO48 |
| 封装： | PLASTIC, HTSSOP-48 |
| 文件页数： | 1/26页 |
| 文件大小： | 439K |
| 代理商： | TPA032D04DCARG4 |
TPA032D04
10W STEREO CLASSD AUDIO POWER AMPLIFIER
SLOS203B DECEMBER 1999 REVISED JUNE 2000
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
D Extremely Efficient Class-D Stereo
Operation
D Drives L and R Channels, Plus Stereo
Headphones
D 10-W BTL Output Into 4 From 12 V
D 32-W Peak Music Power
D Fully Specified for 12-V Operation
D Low Shutdown Current
D Class-AB Headphone Amplifier
D Thermally-Enhanced PowerPAD Surface-
Mount Packaging
D Thermal and Under-Voltage Protection
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-
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
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).
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.
SHUTDOWN
MUTE
MODE
LINN
LINP
LCOMP
AGND
VDD
LPVDD
LOUTP
PGND
LOUTN
LPVDD
HPREG
HPLOUT
HPLIN
AGND
PVDD
VCP
HPDL
CP1
COSC
AGND
RINN
RINP
RCOMP
FAULT0
FAULT1
RPVDD
ROUTP
PGND
ROUTN
RPVDD
HPVCC
HPROUT
HPRIN
V2P5
PVDD
PGND
HPDR
CP2
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DCA PACKAGE
(TOP VIEW)
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