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TAS5612LA_15

更新时间： 2024-11-26 02:58:23
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德州仪器 - TI /
页数 文件大小 规格书
31页 961K
描述
125-W Stereo and 250-W Mono PurePath HD Digital-Input Class-D Power Stage

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TAS5612LA  
www.ti.com  
SLAS847 –MAY 2012  
125-W Stereo / 250-W Mono PurePath™ HD Digital-Input Class-D Power Stage  
Check for Samples: TAS5612LA  
1
FEATURES  
DESCRIPTION  
The TAS5612LA is a feature optimized class-D power  
amplifier based on the TAS5612A.  
234  
•
PurePath™ HD Integrated Feedback Provides:  
–
–
–
0.05% THD at 1 W into 4 Ω  
>65 dB PSRR (No Input Signal)  
>105 dB (A weighted) SNR  
The TAS5612LA uses large MOSFETs for improved  
power efficiency and a novel gate drive scheme for  
reduced losses in idle and at low output signals  
leading to reduced heat sink size.  
•
•
Pre-Clipping Output for Control of a Class-G  
Power Supply  
The unique pre clipping output signal can be used to  
control a Class-G power supply. This combined with  
the low idle loss and high power efficiency of the  
TAS5612LA leads to industry leading levels of  
efficiency ensuring a super “green” system.  
Reduced Heat Sink Size due to use of 60mΩ  
Output MOSFET with >90% Efficiency at Full  
Output Power  
•
•
Output Power at 10%THD+N  
The TAS5612LA uses constant voltage gain. The  
internally matched gain resistors ensure a high Power  
Supply Rejection Ratio giving an output voltage only  
dependent on the audio input voltage and free from  
any power supply artifacts.  
–
–
125 W / 4 Ω BTL Stereo Configuration  
250 W / 2 Ω in PBTL Mono Configuration  
Output Power at 1%THD+N  
–
–
105 W / 4 Ω BTL Stereo Configuration  
55 W / 8 Ω BTL Stereo Configuration  
The high integration of the TAS5612LA makes the  
amplifier easy to use and using TI’s reference  
schematics and PCB layouts leads to fast design in  
time. The TAS5612LA is available in the space  
saving surface mount 44-pin HTSSOP package.  
PowerPAD™ PurePath™ HD  
•
•
Click and Pop Free Startup  
Error Reporting Self-protected Design with  
UVP, Over Temperature, and Short Circuit  
Protection  
•
•
EMI Compliant when used with Recommended  
System Design  
44-Pin HTSSOP (DDV) Package for Reduced  
Board Size  
PurePath HDTM  
TAS5612LA  
TASxxxx  
Digital Audio  
Processor  
DIGITAL  
AUDIO  
INPUT  
APPLICATIONS  
+12V  
18V-32.5V  
•
•
•
•
Blu-ray™/DVD Receivers  
High Power Sound Bars  
PurePath HDTM  
+3.3V  
REG.  
Class G Power Supply  
Ref design  
Powered Subwoofer and Active Speakers  
Mini Combo Systems  
105VAC  
240VAC  
→
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
3
4
PowerPAD, PurePath are trademarks of Texas Instruments.  
Blu-ray is a trademark of Blu-ray Disk Association (BDA).  
All other trademarks are the property of their respective owners.  
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 © 2012, Texas Instruments Incorporated  
1234567...31

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