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TAS5414C

更新时间： 2024-11-18 11:07:51
品牌 Logo 应用领域
德州仪器 - TI 放大器音频放大器
页数 文件大小 规格书
44页 887K
描述
具有 I2C 诊断和负载突降保护功能的 28W、4 通道、6V 至 24V 电源电压、模拟单端输入 D 类音频放大器

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TAS5414C 数据手册

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TAS5414  
TAS5424  
www.ti.com  
SLOS514–FEBRUARY 2007  
FOUR-CHANNEL AUTOMOTIVE DIGITAL AMPLIFIERS  
FEATURES  
•
36-Pin PSOP3 (DKD) Power SOP Package  
With Heat Slug Up for the TAS5414  
•
•
•
•
•
TAS5414 – Single-Ended Input  
•
44-Pin PSOP3 (DKD) Power SOP Package  
With Heat Slug Up for the TAS5424  
TAS5424 – Differential Input  
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  
–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 TAS5414 and TAS5424 are four-channel digital  
audio amplifiers designed for use in automotive head  
units and external amplifier modules. The TAS5414  
and TAS5424 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 TAS5414 uses  
single-ended analog inputs, while the TAS5424  
employs differential inputs for increased immunity to  
common-mode system noise. The digital PWM  
topology of the TAS5414 and TAS5424 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 TAS5414s or  
TAS5424s 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 TAS5414 and TAS5424 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  
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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TAS5414C 替代型号

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