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APPLICATIONS

DESCRIPTION

10

70

G012

0.01

0.1

20

1

0.1

10

1

PVDD = 40 V

6-

Ω Satellite

3-

Ω Subwoofer

TAS5186A

SLES156 – OCTOBER 2005

6-Channel, 210-W, Digital-Amplifier Power Stage

The

TAS5186A

requires

only

simple

passive

demodulation

filters

on

its

outputs

to

deliver

•

Total Output Power @ 10% THD+N

high-quality, high-efficiency audio amplification. The

– 5×30 W @ 6

Ω + 1×60 W @ 3 Ω

device efficiency of the TAS5186A is greater than

90% when driving 6-

Ω satellites and a 3-Ω subwoofer

•

105-dB SNR (A-Weighted)

speaker.

•

0.07% THD+N @ 1 W

The TAS5186A has an innovative protection system

•

Power Stage Efficiency > 90% Into

integrated on-chip, safeguarding the device against a

Recommended Loads (SE)

wide range of fault conditions that could damage the

•

Integrated Self-Protection Circuits

system. These safeguards are short-circuit protection,

– Undervoltage

overload protection, undervoltage protection, and

overtemperature protection. The TAS5186A has a

– Overtemperature

new proprietary current-limiting circuit that reduces

– Overload

the possibility of device shutdown during high-level

– Short Circuit

music transients. A new programmable overcurrent

detector allows the use of lower-cost inductors in the

•

Integrated Active-Bias Control to Avoid DC

demodulation output filter.

Pop

•

Thermally Enhanced 44-Pin HTSSOP Package

TOTAL HARMONIC DISTORTION + NOISE

vs

•

EMI-Compliant When Used With

OUTPUT POWER

Recommended System Design

•

DVD Receiver

•

Home Theater in a Box

The TAS5186A is a high-performance, six-channel,

digital-amplifier

power

stage

with

an

improved

protection system. The TAS5186A is capable of

driving a 6-

Ω, single­ended load up to 30 W per each

front/satellite

channel

and

a

3-

Ω, single-ended

subwoofer greater than 60 W at 10% THD+N

performance.

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

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

TAS5086) and the TAS5186A. This device does not

require power-up sequencing because of the internal

power-on reset.

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.

PowerPAD is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Copyright © 2005, 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.