TAS5404-Q1_15 Datasheet, PDF (1/47 Pages) Texas Instruments – TAS5404-Q1: 26-W Analog Single-Ended Input 4-Channel Class-D Amp with Load Dump Protection and I2C Diagnostics

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TAS5404-Q1
SLOS918A – AUGUST 2015 – REVISED OCTOBER 2015
TAS5404-Q1: 26-W Analog Single-Ended Input 4-Channel Class-D Amp with Load Dump
Protection and I²C Diagnostics
1 Features
•1 TAS5404-Q1 – Single-Ended Input
• Four-Channel Class-D Power Amplifier
• Four Analog Inputs, Four BTL Power Outputs
• Typical Output Power at 10% THD+N
– 26 W/Ch Into 4 Ω at 14.4 V
– 45 W/Ch Into 2 Ω at 14.4 V
• 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
• 75dB 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 Output-to-Ground Shorts
– Patented Tweeter Detection
• Protection and Monitoring Functions:
– Short-Circuit Protection
– Load-Dump Protection to 50 V
– Fortuitous Open-Ground and Open-Power
Tolerant
– Patented Output DC Level Detection While
Music Playing
– Overtemperature Protection
– Overvoltage and Undervoltage Conditions
– Clip Detection
• 64-Pin QFP (PHD) Power Package With Heat
Slug Up
• Designed for Automotive EMC Requirements
• Qualified According to AEC-Q100
• ISO9000:2002 TS16949-Certified
• –40°C to 105°C Ambient Temperature Range
2 Applications
OEM or retail head units where feature densities
and system configurations require high efficiency
in the audio power amplifier.
3 Description
The TAS5404-Q1 device is a four-channel class-D
audio amplifier designed for use in automotive head
units. The TAS5404-Q1 device provides four
channels at 20 W continuously into 4 Ω at less than
1% THD+N from a 14.4-Vdc supply when used with
the application circuit. The input is configured as an
analog single-ended interface. The patented PWM
topology of the device provides dramatic
improvements in efficiency and audio performance
over traditional linear amplifier solutions. The
improvement in efficiency and audio performance
reduces the power dissipated by the amplifier by a
factor of ten under typical music playback conditions.
The device incorporates all the required functions
required by the OEM application. The built-in load
diagnostic functions for detecting and diagnosing
disconnected speakers help reduce test time during
the manufacturing process.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TAS5404-Q1
HTQFP (64)
14.00 mm × 14.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Efficiency
Four Channels at 4 Ω Each
100
90
80
70
60
50
40
30
20
10
TAS5404-Q1 only
System Efficiency
0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32
Power per Channel (W)
C001
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.