TAS5414A_15 Datasheet, PDF (1/53 Pages) Texas Instruments – FOUR-CHANNEL AUTOMOTIVE DIGITAL AMPLIFIERS

TAS5414A: Not Recommended For New Designs
TAS5414A, TAS5424A
www.ti.com
SLOS535C – MAY 2009 – REVISED APRIL 2011
FOUR-CHANNEL AUTOMOTIVE DIGITAL AMPLIFIERS
Check for Samples: TAS5414A, TAS5424A
FEATURES
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• TAS5414A – Single-Ended Input
• TAS5424A – Differential Input
• Four-Channel Digital Power Amplifier
• Four Analog Inputs, Four BTL Power Outputs
• Typical Output Power per Channel at 10%
THD+N
– 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
– 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
• Patented Pop- and Click-Reduction
Technology
– 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
• 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
– 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
• 44-Pin PSOP3 (DKD) Power SOP Package With
Heat Slug Up for the TAS5424A
• 64-Pin QFP (PHD) Power Package With Heat
Slug Up for TAS5414A
• Designed for Automotive EMC Requirements
• Qualified According to AEC-Q100
• ISO9000:2002 TS16949 Certified
• –40°C to 105°C Ambient Temperature Range
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
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. 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.
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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.
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