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TPA3120D2 PDF预览

TPA3120D2

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
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23页 753K
描述
25-W STEREO CLASS-D AUDIO POWER AMPLIFIER

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TPA3120D2 数据手册

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TPA3120D2  
www.ti.com  
SLOS507–MARCH 2007  
25-W STEREO CLASS-D AUDIO POWER AMPLIFIER  
FEATURES  
DESCRIPTION  
•
•
•
•
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  
The TPA3120D2 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 TPA3120D2 can drive  
stereo speakers as low as 4 Ω. The efficiency of the  
TPA3120D2 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)  
The gain of the amplifier is controlled by two gain  
select pins. The gain selections are 20, 26, 32,  
36 dB.  
•
•
Single Ended Analog Inputs  
The patented start-up and shut-down sequences  
minimize "pop" noise in the speakers without  
additional circuitry.  
Thermal and Short-Circuit Protection with  
Auto Recovery  
•
Space-Saving Surface Mount 24-pin TSSOP  
Package  
APPLICATIONS  
•
Televisions  
SIMPLIFIED APPLICATION CIRCUIT  
TPA3120D2  
1 mF  
0.22 mF  
Left Channel  
LIN  
RIN  
BSR  
ROUT  
PGNDR  
PGNDL  
LOUT  
22 mH 470 mF  
Right Channel  
1 mF  
1 mF  
1 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.  
PRODUCT PREVIEW information concerns products in the  
formative or design phase of development. Characteristic data and  
other specifications are design goals. Texas Instruments reserves  
the right to change or discontinue these products without notice.  
Copyright © 2007, Texas Instruments Incorporated  
1234567...23

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TPA3120D2 替代型号

型号 品牌 替代类型 描述 数据表
TPA3123D2 TI

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