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TPA3117D2

更新时间： 2024-11-20 08:40:15
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
30页 855K
描述
15-W Filter-Free Stereo Class-D Audio Power Amplifier

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TPA3117D2 数据手册

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TPA3117D2  
www.ti.com  
SLOS672 –OCTOBER 2010  
15-W Filter-Free Stereo Class-D Audio Power Amplifier with SpeakerGuard™  
Check for Samples: TPA3117D2  
1
FEATURES  
APPLICATIONS  
•
•
•
Televisions  
Consumer Audio Equipment  
All-in-One Computers  
2
•
15-W/ch into 8Ω Loads at 10% THD+N From a  
16V Supply  
•
•
•
10-W/ch into 8Ω Loads at 10% THD+N From a  
13V Supply  
DESCRIPTION  
90% Efficient Class-D Operation Eliminates  
Need for Heat Sinks  
The TPA3117D2 is a 15W (per channel) efficient,  
Class-D audio power amplifier for driving bridged-tied  
stereo speakers. Advanced EMI Suppression  
Technology enables the use of inexpensive ferrite  
bead filters at the outputs while meeting EMC  
requirements. SpeakerGuard™ speaker protection  
circuitry includes an adjustable power limiter. The  
adjustable power limiter allows the user to set a  
"virtual" voltage rail lower than the chip supply to limit  
the amount of current through the speaker.  
Wide Supply Voltage Range Allows Operation  
from 8V to 26V  
•
•
Filter-Free Operation  
SpeakerGuard™ Speaker Protection Includes  
Adjustable Power Limiter  
•
•
•
•
Excellent THD+N / Pop-Free Performance  
Four Selectable, Fixed Gain Settings  
Differential Inputs  
The TPA3117D2 can drive stereo speakers as low as  
4Ω. The high efficiency of the TPA3117D2, 90%,  
eliminates the need for an external heat sink when  
playing music.  
Selectable Switching Frequency (290kHz or  
390kHz) Allows Multiple Devices to be Used in  
One System  
•
•
Integrated 5V Regulator With up to 30 mA of  
Output Current for Powering External Data  
Converters  
The outputs are also fully protected against shorts to  
GND, VCC, and output-to-output. The short-circuit  
protection and thermal protection includes an  
auto-recovery feature.  
5mm x 5mm QFN Packaging  
SPACER  
1mF  
OUTL+  
OUTL-  
LINP  
LINN  
TPA3117D2  
Audio  
Source  
FERRITE  
BEAD  
OUTPL  
OUTNL  
OUTR+  
OUTR-  
RINP  
RINN  
15W  
8W  
FILTER  
VDD  
GAIN0  
GAIN1  
FERRITE  
BEAD  
OUTPR  
OUTNR  
15W  
REG_OUT  
8W  
FILTER  
10W  
2.2mF  
PLIMIT  
PBTL  
FSEL  
SD  
8 to 26V  
PVCC  
Figure 1. TPA3117D2 Simplified Application Schematic  
1
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.  
2
SpeakerGuard is a trademark of Texas Instruments.  
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 © 2010, Texas Instruments Incorporated  
 
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TPA3117D2 替代型号

型号 品牌 替代类型 描述 数据表
TPA3136D2 TI

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