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TPA3123D2

更新时间： 2024-11-17 03:58:47
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
29页 896K
描述
25-W STEREO CLASS-D AUDIO POWER AMPLIFIER

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TPA3123D2 数据手册

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TPA3123D2  
www.ti.com  
SLOS541A–JULY 2007–REVISED AUGUST 2007  
25-W STEREO CLASS-D AUDIO POWER AMPLIFIER  
FEATURES  
APPLICATIONS  
•
Televisions  
•
•
•
•
25-W/ch into a 4-Ω Load from a 27-V Supply  
20-W/ch into a 4-Ω Load from a 24-V Supply  
Operates from 10 V to 30 V  
DESCRIPTION  
The TPA3123D2 is a 25-W (per channel) efficient,  
Class-D audio power amplifier for driving stereo  
speakers in a single-ended configuration or a mono  
bridge-tied speaker. The TPA3123D2 can drive  
stereo speakers as low as 4 Ω. The efficiency of the  
TPA3123D2 eliminates the need for an external heat  
sink when playing music.  
Efficient Class-D Operation Eliminates Need  
for Heat Sinks  
•
•
Four Selectable, Fixed-Gain Settings  
Internal Oscillator (No External Components  
Required)  
•
•
Single-Ended Analog Inputs  
The gain of the amplifier is controlled by two gain  
select pins. The gain selections are 20, 26, 32,  
36 dB.  
Thermal and Short-Circuit Protection With  
Auto Recovery  
•
Space-Saving Surface-Mount 24-Pin TSSOP  
Package  
The patented start-up and shut-down sequences  
minimize pop noise in the speakers without  
additional circuitry.  
•
•
Pin-to-Pin compatible with TPA3120D2  
Advanced Power-Off Pop Reduction  
SIMPLIFIED APPLICATION CIRCUIT  
TPA3123D2  
1 mF  
0.22 mF  
Left Channel  
LIN  
RIN  
BSR  
ROUT  
PGNDR  
PGNDL  
LOUT  
22 mH 470 mF  
Right Channel  
1 mF  
0.68 mF  
0.68 mF  
1 mF  
BYPASS  
AGND  
22 mH  
470 mF  
BSL  
0.22 mF  
10 V to 30 V  
PVCCL  
PVCCR  
AVCC  
10 V to 30 V  
VCLAMP  
Shutdown  
Control  
SD  
1 mF  
MUTE  
Mute Control  
GAIN0  
GAIN1  
4-Step Gain  
Control  
}
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.  
System Two, Audio Precision are trademarks of Audio Precision, Inc.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2007, Texas Instruments Incorporated  
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TPA3123D2 替代型号

型号 品牌 替代类型 描述 数据表
TPA3124D2 TI

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