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TPA032D03_07

更新时间： 2024-09-21 03:58:51
品牌 Logo 应用领域
德州仪器 - TI 放大器功率放大器
页数 文件大小 规格书
27页 571K
描述
10-W MONO CLASS-D AUDIO POWER AMPLIFIER

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TPA032D03_07 数据手册

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SLOS283B − DECEMBER 1999 − REVISED JUNE 2000  
DCA PACKAGE  
(TOP VIEW)  
D
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Extremely Efficient Class-D Mono  
Operation  
Drives Mono Speaker, Plus Stereo  
Headphones  
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SHUTDOWN  
MUTE  
MODE  
INN  
COSC  
AGND  
AGND  
AGND  
AGND  
AGND  
FAULT0  
FAULT1  
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10-W BTL Output Into 4 Ω From 12 V  
32-W Peak Music Power  
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INP  
COMP  
AGND  
Fully Specified for 12-V Operation  
Low Shutdown Current  
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Class-AB Headphone Amplifier  
DD  
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PV  
PV  
DD  
DD  
Thermally-Enhanced PowerPADSurface-  
Mount Packaging  
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OUTP  
OUTP  
PGND  
PGND  
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OUTN  
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PGND  
PGND  
NC  
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Thermal and Under-Voltage Protection  
description  
NC  
The TPA032D03 is a monolithic power IC mono  
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 TPA032D03 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  
PV  
PV  
DD  
DD  
HPREG  
HPLOUT  
HPLIN  
HPV  
CC  
HPROUT  
HPRIN  
V2P5  
AGND  
PV  
PV  
DD  
DD  
VCP  
HPDL  
CP1  
PGND  
HPDR  
CP2  
NC − No internal connection  
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 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 TPA032D03 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 TPA032D03 is offered in the thermally enhanced 48-pin PowerPADTSSOP 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  
1234567...27

中文翻译

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