1

FEATURES

APPLICATIONS

DESCRIPTION

PWM_AP

PWM_AN

DVDD

AGND

OUTA

OUTB

OUTC

OUTD

RESET

FAULT

TAS5602

DigitalPWMProcessor

Control

Inputs

IS

2

OUTA_P

OUTA_N

OUTC_P

OUTC_N

VALID

ERROR

PWM_CP

PWM_CN

LC

Filter

LC

Filter

BSA

BSB

DVDD

PVCC

AVCC

GPIO

PGND

BYPASS

BSC

BSD

DGND

DGND

VCLAMP_AB

VCLAMP_CD

3-4.2V

10-26V

PWM_BP

PWM_BN

OUTB_P

OUTB_N

OUTD_P

OUTD_N

PWM_DP

PWM_DN

THERM_WARN

SE/BLT

TAS5601

SLAS585 – FEBRUARY 2008

www.ti.com

20W STEREO (BTL) DIGITAL AMPLIFIER POWER STAGE

• Integrated Self-Protection Circuits Including

Overvoltage, Undervoltage, Overtemperature,

2

• Supports Multiple Output Configurations

and Short Circuit With Error Reporting

–

2

×20-W into a 8-Ω BTL Load at 18 V

–

4

×10-W into a 4-Ω SE Load at 18 V

–

2

×10W (SE) + 1×20W (BTL) at 18 V

• Flat-Panel, Rear-Projection, and CRT TV

• Thermally Enhanced Package

–

DCA (56-pin HTTSOP)

• Wide Voltage Range: 10V–26V

The TAS5601 is a 20-W (per channel) efficient,

stereo digital amplifier power stage for driving 4

–

No Separate Supply Required for Gate

single-ended speakers, 2 bridge-tied speakers, or

Drive

combination of single and bridge-tied loads. The

• Efficient Class-D Operation Eliminates Need

TAS5601 can drive a speaker with an impedance as

for Heat Sinks

low as 4

Ω. The high efficiency, >90% into 8-Ω loads,

• Closed Loop Power Stage Architecture

of the TAS5601 eliminates the need for an external

heat sink.

–

Improved PSRR Reduces Power Supply

Performance Requirements

A simple interface to a digital audio PWM processor

is shown below. The TAS5601 is fully protected

–

High Damping Factor Provides for Tighter,

against faults with short-circuit protection and thermal

More Accurate Sound With Improved Bass

protection as well as overvoltage and undervoltage

Response

protection. Faults are reported back to the processor

–

Constant Output Power Over Variation in

to prevent devices from being damaged during

Supply Voltage

overload conditions.

• Differential Inputs

SIMPLIFIED APPLICATION CIRCUIT

1

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.

2

System Two, Audio Precision are trademarks of Audio Precision, Inc.

PRODUCTION DATA information is current as of publication date.

Copyright © 2008, 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.