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DESCRIPTION

TAS5414

TAS5424

SLOS514A – FEBRUARY 2007 – REVISED JULY 2007

FOUR-CHANNEL AUTOMOTIVE DIGITAL AMPLIFIERS

With Heat Slug Up for the TAS5414

• TAS5414 – Single-Ended Input

• 44-Pin PSOP3 (DKD) Power SOP Package

With Heat Slug Up for the TAS5424

• TAS5424 – Differential Input

• Designed for Automotive EMC Requirements

• Four-Channel Digital Power Amplifier

• Pb-Free Soldering Supported

• Four Analog Inputs, Four BTL Power Outputs

• AECQ100 Compliant

• Typical Output Power per Channel at 10%

THD+N

• ISO9000:2002 TS16949 Certified

–

28 W/Ch Into 4

Ω at 14.4 Vdc

• –40°C to 105°C Ambient Temperature Range

–

45 W/Ch Into 2

Ω at 14.4 Vdc

–

58 W/Ch Into 4

Ω at 21 Vdc

• High-power OEM/retail head units and

–

116 W/Ch Into 2

Ω at 21 Vdc PBTL

amplifier modules where feature densities and

• Channels Can Be Paralleled (PBTL) for 1-Ω

system configurations require reduction in

Applications

heat from the audio power amplifier

• THD+N < 0.02%, 1 kHz, 1 W Into 4 Ω

• Patented Pop- and Click-Reduction

Technology

The TAS5414 and TAS5424 are four-channel digital

audio amplifiers designed for use in automotive head

–

Soft Muting With Gain Ramp Control

units and external amplifier modules. The TAS5414

–

Common-Mode Ramping

and TAS5424 provide four channels at 23 W

• Patented AM Interference Avoidance

continuously into 4

Ω at less than 1% THD+N from a

14.4-V supply. Each channel can also deliver 38 W

• Patented Cycle-by-Cycle Current Limit

into 2

Ω at 1% THD+N. The TAS5414 uses

• 75-dB PSRR

single-ended analog inputs, while the TAS5424

employs differential inputs for increased immunity to

Configuration and Control

common-mode system noise. The digital PWM

topology of the TAS5414 and TAS5424 provides

• Configurable Channel Gains: 12-dB, 20-dB,

dramatic improvements in efficiency over traditional

26-dB, 32-dB

linear amplifier solutions. This reduces the power

• Load Diagnostic Functions:

dissipated by the amplifier by a factor of ten under

–

Output Open and Shorted Load

typical music playback conditions. High efficiency is

accomplished without the need for complicated

–

Output-to-Power and -to-Ground Shorts

power-supply

schemes.

Multiple

TAS5414s

or

–

Patented Tweeter Detection

TAS5424s

can

be

synchronized

to

meet

• Protection and Monitoring Functions:

high-channel-count applications.

–

Short-Circuit Protection

The TAS5414 and TAS5424 incorporate all the

–

Load-Dump Protection to 50 V

functionality needed to perform in the demanding

OEM applications area. They have built-in load

–

Fortuitous Open Ground and Power

diagnostic functions for detecting and diagnosing

Tolerant

misconnected outputs to help to reduce test time

–

Patented Output DC Level Detection While

during the manufacturing process.

Music Playing

–

Overtemperature Protection

–

Over- and Undervoltage Conditions

–

Clip Detection

• 36-Pin PSOP3 (DKD) Power SOP Package

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.

Copyright © 2007, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.