FEATURES
· 2×100 W at 10% THD+N Into 4-W BTL (1)
· 2×80 W at 10% THD+N Into 6-W BTL
· 2×65 W at 10% THD+N Into 8-W BTL
· 4×40 W at 10% THD+N Into 3-W SE
· 4×30 W at 10% THD+N Into 4-W SE
· 1×160 W at 10% THD+N Into 3-W PBTL
· 1×200 W at 10% THD+N Into 2-W PBTL (1)
· >100 dB SNR (A-Weighted)
· <0.1% THD+N at 1 W
· Two Thermally Enhanced Package Options:
– DKD (36-pin PSOP3)
– DDV (44-pin HTSSOP)
· High-Efficiency Power Stage (>90%) With
140-mW Output MOSFETs
· Power-On Reset for Protection on Power Up
Without Any Power-Supply Sequencing
· Integrated Self-Protection Circuits Including
Undervoltage, Overtemperature, Overload,
Short Circuit
· Error Reporting
· EMI Compliant When Used With
Recommended System Design
· Intelligent Gate Drive

APPLICATIONS
· Mini/Micro Audio System
· DVD Receiver
· Home Theater

DESCRIPTION
The TAS5142 is a third-generation, high-performance,
integrated stereo digital amplifier power stage
with an improved protection system. The TAS5142 is
capable of driving a 4-W bridge-tied load (BTL) at up
to 100 W per channel with low integrated noise at the
output, low THD+N performance, and low idle power
dissipation.
A low-cost, high-fidelity audio system can be built
using a TI chipset, comprising a modulator (e.g.,
TAS5508) and the TAS5142. This system only
requires a simple passive LC demodulation filter to
deliver high-quality, high-efficiency audio amplification
with proven EMI compliance. This device requires two
power supplies, at 12 V for GVDD and VDD, and at
32 V for PVDD. The TAS5142 does not require
power-up sequencing due to internal power-on reset.
The efficiency of this digital amplifier is greater than
90% into 6 W, which enables the use of smaller
power supplies and heatsinks.
The TAS5142 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,
overcurrent protection, undervoltage protection, and
overtemperature protection. The TAS5142 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.