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TAS5414ATPHDMQ1 PDF预览

TAS5414ATPHDMQ1

更新时间： 2024-11-18 03:30:07
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德州仪器 - TI 放大器
页数 文件大小 规格书
48页 1260K
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FOUR-CHANNEL AUTOMOTIVE DIGITAL AMPLIFIERS

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TAS5414ATPHDMQ1 数据手册

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TAS5414A, TAS5424A  
www.ti.com  
SLOS535A–JULY 2007–REVISED FEBRUARY 2008  
FOUR-CHANNEL AUTOMOTIVE DIGITAL AMPLIFIERS  
1
FEATURES  
•
44-Pin PSOP3 (DKD) Power SOP Package With  
Heat Slug Up for the TAS5424A  
•
TAS5414A – Single-Ended Input  
•
64-Pin QFP (PHD) Power Package With Heat  
Slug Up for TAS5414A and TAS5424A  
•
•
•
•
TAS5424A – Differential Input  
Four-Channel Digital Power Amplifier  
Four Analog Inputs, Four BTL Power Outputs  
•
•
•
•
Designed for Automotive EMC Requirements  
AECQ100 Compliant  
Typical Output Power per Channel at 10%  
THD+N  
ISO9000:2002 TS16949 Certified  
–40°C to 105°C Ambient Temperature Range  
–
–
–
–
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  
APPLICATIONS  
•
High-Power OEM/Retail Head Units and  
Amplifier Modules Where Feature Densities  
and System Configurations Require Reduction  
in Heat From the Audio Power Amplifier  
116 W/Ch Into 2 Ω at 21 Vdc PBTL  
•
Channels Can Be Paralleled (PBTL) for 1-Ω  
Applications  
•
•
THD+N < 0.02%, 1 kHz, 1 W Into 4 Ω  
DESCRIPTION  
Patented Pop- and Click-Reduction  
Technology  
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 synchronized to meet  
high-channel-count applications.  
–
–
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:  
–
–
–
Short-Circuit Protection  
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.  
Load-Dump Protection to 50 V  
Fortuitous Open Ground and Power  
Tolerant  
–
Patented Output DC Level Detection While  
Music Playing  
–
–
–
Overtemperature Protection  
Over- and Undervoltage Conditions  
Clip Detection  
•
36-Pin PSOP3 (DKD) Power SOP Package With  
Heat Slug Up for the TAS5414A  
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.  
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 © 2007–2008, Texas Instruments Incorporated  
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