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FEATURES

APPLICATIONS

DESCRIPTION

PVDD − Supply Voltage − V

0

5

10

15

20

25

30

0

5

10

15

20

8

Ω

THD+N @ 10%

6

Ω

G002

TAS5132

SLES190 – DECEMBER 2006

STEREO DIGITAL AMPLIFIER POWER STAGE

A low-cost, high-fidelity audio system can be built

using a TI chipset, comprising a modulator (e.g.,

• 2×20 W at 10% THD+N Into 8-Ω BTL

TAS5086) and the TAS5132. This system only

• 2×25 W at 10% THD+N Into 6-Ω BTL

requires a simple passive LC demodulation filter to

deliver

high-quality,

high-efficiency

audio

• >100-dB SNR (A-Weighted)

amplification with proven EMI compliance. This

• <0.1% THD+N at 1 W

device requires two power supplies, at 12 V for

• Thermally Enhanced Package:

GVDD and VDD, and at 18 V for PVDD. The

–

DDV (44-pin HTSSOP)

TAS5132 does not require power-up sequencing due

to internal power-on reset. The efficiency of this

• High-Efficiency Power Stage (>90%) With

digital amplifier is greater than 90% into 8

Ω, which

140-m

Ω Output MOSFETs

enables the use of smaller power supplies and

• Power-On Reset for Protection on Power Up

heatsinks.

Without Any Power-Supply Sequencing

The TAS5132 has an innovative protection system

• Integrated Self-Protection Circuits Including

integrated on chip, safeguarding the device against a

Undervoltage, Overtemperature, Overload,

wide range of fault conditions that could damage the

Short Circuit

system.

These

safeguards

are

short-circuit

• PWM Activity Detector to detect stopped PWM

protection,

overcurrent

protection,

undervoltage

protection, and overtemperature protection. The

inputs and protect the system

TAS5132 has a new proprietary current-limiting

• Error Reporting

circuit that reduces the possibility of device shutdown

• EMI Compliant When Used With

during high-level music transients.

Recommended System Design

BTL OUTPUT POWER vs SUPPLY VOLTAGE

• Intelligent Gate Drive

• Pin Compatible With the TAS5142DDV

• Televisions

• Mini/Micro Audio Systems

• DVD Receivers

• Home Theaters

The TAS5132 is an integrated stereo digital amplifier

power stage with an advanced protection system.

The TAS5132 is capable of driving a 6-

Ω bridge-tied

load (BTL) at up to 25 W per channel with low

integrated

noise

at

the

output,

low

THD+N

performance, and low idle power dissipation.

PurePath Digital™

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the MOS gates.

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.

PurePath Digital, PowerPAD are trademarks of Texas Instruments.

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2006, 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.