TAS5414C Datasheet, PDF (1/51 Pages) Texas Instruments – Four-Channel Aftermarket Automotive Class-D Amplifier

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TAS5414C
SLOS955 – DECEMBER 2016
TAS5414C Four-Channel Aftermarket Automotive Class-D Amplifier
1 Features
•1 Four-Channel Single-Ended Analog Input Class-D
Audio Amplifier
• 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
– Overtemperature Protection
– Over- and Undervoltage Conditions
– Clip Detection
• 64-Pin QFP (PHD) Power Package With Heat
Slug Up
• –20°C to 105°C Ambient Temperature Range
3 Description
The TAS5414C is a four-channel Class-D audio
amplifier designed for use in automotive head units
and external amplifier modules. It provides 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
TAS5414C uses single-ended analog inputs. The
class-D 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 has a
built-in load diagnostic functions for detecting and
diagnosing misconnected outputs to help to reduce
test time during the manufacturing process.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TAS5414C
HTQFP (64)
14.00 mm × 14.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Efficiency vs Power Per Channel
100
90
80
70
60
50
40
30
20
10
0
0 4 8 12 16 20 24 28 32
P − Power Per Channel − W
G007
2 Applications
• Aftermarket Headunit
• Aftermarket External Audio Amplifier
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.