FEATURES

· Total Output Power @ 10% THD+N

– 5×30 W @ 6 W + 1×60 W @ 3 W

· 105-dB SNR (A-Weighted)

· 0.07% THD+N @ 1 W

· Power Stage Efficiency > 90% Into

Recommended Loads (SE)

· Integrated Self-Protection Circuits

– Undervoltage

– Overtemperature

– Overload

– Short Circuit

· Integrated Active-Bias Control to Avoid DC

Pop

· Thermally Enhanced 44-Pin HTSSOP Package

· EMI-Compliant When Used With

Recommended System Design

APPLICATIONS

· DVD Receiver

· Home Theater in a Box

DESCRIPTION

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-W, singleended

load up to 30 W per each

front/satellite channel and a 3-W, 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.

The TAS5186A requires only simple passive

demodulation filters on its outputs to deliver

high-quality, high-efficiency audio amplification. The

device efficiency of the TAS5186A is greater than

90% when driving 6-W satellites and a 3-W subwoofer

speaker.

The TAS5186A has an innovative protection system

integrated on-chip, safeguarding the device against a

wide range of fault conditions that could damage the system. These safeguards are short-circuit protection,

overload protection, undervoltage protection, and

overtemperature protection. The TAS5186A has a

new proprietary current-limiting circuit that reduces

the possibility of device shutdown during high-level

music transients. A new programmable overcurrent

detector allows the use of lower-cost inductors in the

demodulation output filter.