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FEATURES
APPLICATIONS
· 2´20 W at 10% THD+N Into 8-W BTL
· 2´25 W at 10% THD+N Into 6-W BTL
· >100-dB SNR (A-Weighted)
· <0.1% THD+N at 1 W
· Thermally Enhanced Package:
– 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
· PWM Activity Detector to detect stopped PWM
inputs and protect the system
· Error Reporting
· EMI Compliant When Used With
Recommended System Design
· Intelligent Gate Drive
· Pin Compatible With the TAS5142DDV
· Televisions
· Mini/Micro Audio Systems
· DVD Receivers
· Home Theaters
DESCRIPTION
The TAS5132 is an integrated stereo digital amplifier
power stage with an advanced protection system.
The TAS5132 is capable of driving a 6-W 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.
A low-cost, high-fidelity audio system can be built
using a TI chipset, comprising a modulator (e.g.,
TAS5086) and the TAS5132. 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 18 V for PVDD. The
TAS5132 does not require power-up sequencing due
to internal power-on reset. The efficiency of this
digital amplifier is greater than 90% into 8 W, which
enables the use of smaller power supplies and
heatsinks.
The TAS5132 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
TAS5132 has a new proprietary current-limiting
circuit that reduces the possibility of device shutdown
during high-level music transients.
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