TAS5412-Q1 Datasheet, PDF (1/38 Pages) Texas Instruments – TWO-CHANNEL AUTOMOTIVE DIGITAL AMPLIFIER

TAS5412-Q1
www.ti.com
SLOS685A – AUGUST 2013 – REVISED OCTOBER 2013
TWO-CHANNEL AUTOMOTIVE DIGITAL AMPLIFIER
Check for Samples: TAS5412-Q1
FEATURES
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•234 TAS5412-Q1 - Single-Ended Input
• 2-Channel Digital Power Amplifier
• 2 Analog Inputs, 2 BTL Power Outputs
• Typical Output Power per Channel at 10%
– 28 Watts/Ch, Into 4 Ω at 14.4 VDC
– 46 Watts/Ch, Into 2 Ω at 14.4 VDC
– 79 Watts/Ch, Into 4 Ω at 24 VDC
– 150 Watts Into 2 Ω at 24 VDC PBTL
– 90 Watts Into 1 Ω at 14.4 VDC PBTL
• THD+N < 0.02%, 1 kHz, 1 W Into 4 Ω
• Patented Pop- and Click-Reduction
Technology
• 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
– 50-V Load-Dump Protection
– Fortuitous Open-Ground and -Power
Tolerant
– Patented Output DC Level Detection While
Music Is Playing
– Overtemperature Protection
– Over- and Undervoltage Protection
– Clip Detection
• TAS5412-Q1 - 64-Pin QFP (PHD) PowerPAD™
Surface-Mount Package
• Pin Compatible With 4-Channel Devices
• Designed for Automotive EMC Requirements
• Will Be Qualified According to AEC-Q100
• ISO9000:2002 TS16949 Certified
• –40 to 105°C Ambient Temperature Range
APPLICATIONS
• Radio Head Units
• External Amplifiers
DESCRIPTION
The device is a two-channel digital audio amplifier
designed for use in automotive head units and
external amplifiers. It provides two channels at 28 W
into 4 Ω at 10% THD+N from 14.4 V or 46 W into 2 Ω
at 10% THD+N. The digital PWM topology 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 device
incorporates a patented PWM design that provides
excellent power-supply rejection in the harsh
electrical environment common in automotive
applications. Applications attain high efficiency
without the need for complicated power supply
schemes. The design allows synchronization of
multiple devices.
The device incorporates all the functionality needed
to perform in the demanding OEM applications area,
including load diagnostic functions for detecting and
diagnosing misconnected outputs.
This text, unrelated to other data-sheet content, is
intended only for adjusting column lengths on the first
page.
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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.
PowerPAD is a trademark of Texas Instruments.
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Ceramique is a trademark of Arctic Silver Inc.
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Arctic Silver is a registered trademark of Arctic Silver Inc.
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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 © 2013, Texas Instruments Incorporated