TAS5414B-Q1

TAS5424B-Q1

www.ti.com

SLOS673

– DECEMBER 2011

FOUR-CHANNEL AUTOMOTIVE DIGITAL AMPLIFIERS

Check for Samples: TAS5414B-Q1, TAS5424B-Q1

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FEATURES

•

TAS5414B-Q1

– Single-Ended Input

•

36-Pin PSOP3 (DKD) Power SOP Package With

Heat Slug Up for the TAS5414B-Q1

•

TAS5424B-Q1

– Differential Input

•

44-Pin PSOP3 (DKD) Power SOP Package With

•

Four-Channel Digital Power Amplifier

Heat Slug Up for the TAS5424B-Q1

•

Four Analog Inputs, Four BTL Power Outputs

•

44-Pin PSOP3 (DKE) Low-Standoff Power SOP

•

Typical Output Power at 10% THD+N

Package With Heat Slug Up for the

– 28 W/Ch Into 4 Ω at 14.4 V

TAS5424B-Q1

– 50 W/Ch Into 2 Ω at 14.4 V

•

64-Pin QFP (PHD) Power Package With Heat

– 79 W/Ch Into 4 Ω at 24 V

Slug Up for TAS5414B-Q1

– 150 W/Ch Into 2 Ω at 24 V (PBTL)

•

Designed for Automotive EMC Requirements

•

Channels Can Be Paralleled (PBTL) for High

•

Qualified According to AEC-Q100

Current Applications

•

ISO9000:2002 TS16949 Certified

•

THD+N

< 0.02%, 1 kHz, 1 W Into 4 Ω

•

–40°C to 105°C Ambient Temperature Range

•

Patented Pop- and Click-Reduction

Technology

APPLICATIONS

– Soft Muting With Gain Ramp Control

•

OEM/Retail Head Units and Amplifier Modules

– Common-Mode Ramping

Where Feature Densities and System

Configurations Require Reduction in Heat

•

Patented AM Interference Avoidance

From the Audio Power Amplifier

•

Patented Cycle-by-Cycle Current Limit

•

75-dB PSRR

DESCRIPTION

•

The

TAS5414B-Q1

and

TAS5424B-Q1

are

Configuration and Control

four-channel digital audio amplifiers designed for use

•

Channel Gains: 12-dB, 20-dB, 26-dB, 32-dB

in automotive head units and external amplifier

modules. They provide four channels at 23 W

•

Load Diagnostic Functions:

continuously into 4

Ω at less than 1% THD+N from a

– Output Open and Shorted Load

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

– Output-to-Power and -to-Ground Shorts

into 2

Ω at 1% THD+N. The TAS5414B-Q1 uses

single-ended analog inputs, while the TAS5424B-Q1

– Patented Tweeter Detection

employs differential inputs for increased immunity to

•

Protection and Monitoring Functions:

common-mode

system

noise.

The

digital

PWM

– Short-Circuit Protection

topology

of

the

device

provides

dramatic

improvements in efficiency over traditional linear

– Load-Dump Protection to 50 V

amplifier solutions. This reduces the power dissipated

– Fortuitous Open Ground and Power

by the amplifier by a factor of ten under typical music

Tolerant

playback conditions. The device incorporates all the

– Patented Output DC Level Detection While

functionality needed to perform in the demanding

Music Playing

OEM applications area. They have built-in load

diagnostic functions for detecting and diagnosing

– Over-temperature Protection

misconnected outputs to help to reduce test time

– Over- and Undervoltage Conditions

during the manufacturing process.

– Clip Detection

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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.

Copyright

© 2011, 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.