TM

1

FEATURES

DESCRIPTION

APPLICATIONS

0

150

10

20

30

40

50

60

70

80

90

100

110

120

130

140

0

34

2

4

6

8 10 12 14 16 18 20 22 24 26 28 30 32

T =75°C

THD+Nat10%

C

8 Ω

4 Ω

6 Ω

8 Ω

4 Ω

8 Ω

4 Ω

8 Ω

4 Ω

PVDD – SupplyVoltage – V

TAS5352A

125 W STEREO DIGITAL AMPLIFIER POWER STAGE

23

• Total Power Output (Bridge Tied Load)

–

2 × 125 W at 10% THD+N Into 4

Ω

The TAS5352A is a high-performance, integrated

stereo digital amplifier power stage designed to drive

–

2 × 100 W at 10% THD+N Into 6

Ω

a 4-

Ω bridge-tied load (BTL) at up to 125 W per

• Total Power Output (Single Ended)

channel with low harmonic distortion, low integrated

–

4 × 45 W at 10% THD+N Into 3

Ω

noise, and low idle current.

–

4 × 35 W at 10% THD+N Into 4

Ω

The TAS5352A has a complete protection system

• Total Power Output (Parallel Mode)

integrated on-chip, safeguarding the device against a

wide range of fault conditions that could damage the

–

1 × 250 W at 10% THD+N Into 2

Ω

system. These protection features are short-circuit

–

1 × 195 W at 10% THD+N Into 3

Ω

protection, over-current protection, under voltage

• >110 dB SNR (A-Weighted With TAS5518

protection, over temperature protection, and a loss of

Modulator)

PWM signal (PWM activity detector).

• <0.1% THD+N (1 W, 1 kHz)

A power-on-reset (POR) circuit is used to eliminate

power-supply sequencing that is required for most

• Supports PWM Frame Rates of 192 kHz to

power-stage designs.

432 kHz

BTL OUTPUT POWER

• Resistor-Programmable Current Limit

vs

• Integrated Self-Protection Circuitry, Including:

SUPPLY VOLTAGE

–

Under Voltage Protection

–

Overtemperature Warning and Error

–

Overload Protection

–

Short-Circuit Protection

–

PWM Activity Detector

• Standalone Protection Recovery

• Power-On Reset (POR) to Eliminate System

Power-Supply Sequencing

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

80-m

Ω Output MOSFETs

• Thermally Enhanced 44-Pin HTSSOP Package

(DDV)

• Error Reporting, 3.3-V and 5.0-V Compliant

• EMI Compliant When Used With

Recommended System Design

• Mini/Micro Audio System

PurePath Digital™

• DVD Receiver

• Home Theater

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

PurePath Digital, PowerPad are trademarks of Texas Instruments.

3

All other trademarks are the property of their respective owners.

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.