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TAS5414ATDKDMQ1

更新时间： 2024-11-18 03:30:07
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德州仪器 - TI 放大器
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44页 991K
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FOUR-CHANNEL AUTOMOTIVE DIGITAL AMPLIFIERS

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TAS5414ATDKDMQ1 数据手册

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TAS5414A, TAS5424A  
www.ti.com  
SLOS535–JUNE 2007  
FOUR-CHANNEL AUTOMOTIVE DIGITAL AMPLIFIERS  
FEATURES  
– Clip Detection  
•
•
•
•
•
TAS5414A – Single-Ended Input  
•
•
36-Pin PSOP3 (DKD) Power SOP Package  
With Heat Slug Up for the TAS5414A  
TAS5424A – Differential Input  
44-Pin PSOP3 (DKD) Power SOP Package  
With Heat Slug Up for the TAS5424A  
Four-Channel Digital Power Amplifier  
Four Analog Inputs, Four BTL Power Outputs  
•
•
•
•
Designed for Automotive EMC Requirements  
Pb-Free Soldering Supported  
Typical Output Power per Channel at 10%  
THD+N  
ISO9000:2002 TS16949 Certified  
–
–
–
–
28 W/Ch Into 4 Ω at 14.4 Vdc  
45 W/Ch Into 2 Ω at 14.4 Vdc  
58 W/Ch Into 4 Ω at 21 Vdc  
–40°C to 105°C Ambient Temperature Range  
APPLICATIONS  
•
116 W/Ch Into 2 Ω at 21 Vdc PBTL  
High-power OEM/retail head units and  
amplifier modules where feature densities and  
system configurations require reduction in  
heat from the audio power amplifier  
•
Channels Can Be Paralleled (PBTL) for 1-Ω  
Applications  
•
•
THD+N < 0.02%, 1 kHz, 1 W Into 4 Ω  
Patented Pop- and Click-Reduction  
Technology  
DESCRIPTION  
The TAS5414A and TAS5424A are four-channel  
digital audio amplifiers designed for use in  
automotive head units and external amplifier  
modules. The TAS5414A and TAS5424A provide  
four channels at 23 W continuously into 4 Ω at less  
than 1% THD+N from a 14.4-V supply. Each channel  
can also deliver 38 W into 2 Ω at 1% THD+N. The  
TAS5414A uses single-ended analog inputs, while  
the TAS5424A employs differential inputs for  
increased immunity to common-mode system noise.  
The digital PWM topology of the TAS5414A and  
TAS5424A provides dramatic improvements in  
efficiency over traditional linear amplifier solutions.  
This reduces the power dissipated by the amplifier  
by a factor of ten under typical music playback  
conditions. High efficiency is accomplished without  
the need for complicated power-supply schemes.  
Multiple TAS5414As or TAS5424As can be  
–
–
Soft Muting With Gain Ramp Control  
Common-Mode Ramping  
•
•
•
•
Patented AM Interference Avoidance  
Patented Cycle-by-Cycle Current Limit  
75-dB PSRR  
Four-Address I2C Serial Interface for Device  
Configuration and Control  
•
•
Configurable Channel Gains: 12-dB, 20-dB,  
26-dB, 32-dB  
Load Diagnostic Functions:  
–
–
–
Output Open and Shorted Load  
Output-to-Power and -to-Ground Shorts  
Patented Tweeter Detection  
•
Protection and Monitoring Functions:  
synchronized  
applications.  
to  
meet  
high-channel-count  
–
–
–
Short-Circuit Protection  
Load-Dump Protection to 50 V  
The TAS5414A and TAS5424A incorporate all the  
functionality needed to perform in the demanding  
OEM applications area. They have built-in load  
diagnostic functions for detecting and diagnosing  
misconnected outputs to help to reduce test time  
during the manufacturing process.  
Fortuitous Open Ground and Power  
Tolerant  
–
Patented Output DC Level Detection While  
Music Playing  
–
–
Overtemperature Protection  
Over- and Undervoltage Conditions  
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.  
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  
1234567...44

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TAS5414ATDKDMQ1 替代型号

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