TAS5414B-Q1_15 Datasheet, PDF (1/43 Pages) Texas Instruments – FOUR-CHANNEL AUTOMOTIVE DIGITAL AMPLIFIERS

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TAS5414B-Q1
TAS5424B-Q1
SLOS673 – DECEMBER 2011
FOUR-CHANNEL AUTOMOTIVE DIGITAL AMPLIFIERS
Check for Samples: TAS5414B-Q1, TAS5424B-Q1
FEATURES
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• TAS5414B-Q1 – Single-Ended Input
• TAS5424B-Q1 – Differential Input
• Four-Channel Digital Power Amplifier
• Four Analog Inputs, Four BTL Power Outputs
• Typical Output Power at 10% THD+N
– 28 W/Ch Into 4 Ω at 14.4 V
– 50 W/Ch Into 2 Ω at 14.4 V
– 79 W/Ch Into 4 Ω at 24 V
– 150 W/Ch Into 2 Ω at 24 V (PBTL)
• Channels Can Be Paralleled (PBTL) for High
Current 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
– Over-temperature Protection
– Over- and Undervoltage Conditions
– Clip Detection
• 36-Pin PSOP3 (DKD) Power SOP Package With
Heat Slug Up for the TAS5414B-Q1
• 44-Pin PSOP3 (DKD) Power SOP Package With
Heat Slug Up for the TAS5424B-Q1
• 44-Pin PSOP3 (DKE) Low-Standoff Power SOP
Package With Heat Slug Up for the
TAS5424B-Q1
• 64-Pin QFP (PHD) Power Package With Heat
Slug Up for TAS5414B-Q1
• Designed for Automotive EMC Requirements
• Qualified According to AEC-Q100
• ISO9000:2002 TS16949 Certified
• –40°C to 105°C Ambient Temperature Range
APPLICATIONS
• OEM/Retail Head Units and Amplifier Modules
Where Feature Densities and System
Configurations Require Reduction in Heat
From the Audio Power Amplifier
DESCRIPTION
The TAS5414B-Q1 and TAS5424B-Q1 are
four-channel digital audio amplifiers designed for use
in automotive head units and external amplifier
modules. They 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 TAS5414B-Q1 uses
single-ended analog inputs, while the TAS5424B-Q1
employs differential inputs for increased immunity to
common-mode system noise. The digital PWM
topology of the device 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 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.
Copyright © 2011, Texas Instruments Incorporated