TAS5152_15 Datasheet, PDF (1/30 Pages) Texas Instruments – STEREO DIGITAL AMPLIFIER POWER STAGE

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TAS5152
SLES127A − FEBRUARY 2005 − REVISED NOVEMBER 2005
TM
STEREO DIGITAL AMPLIFIER POWER STAGE
FEATURES
D 2×125 W at 10% THD+N Into 4-W BTL
D 2×98 W at 10% THD+N Into 6-W BTL
D 2×76 W at 10% THD+N Into 8-W BTL
D 4×45 W at 10% THD+N Into 3-W SE
D 4×35 W at 10% THD+N Into 4-W SE
D 1×192 W at 10% THD+N Into 3-W PBTL
D 1×240 W at 10% THD+N Into 2-W PBTL
D >100-dB SNR (A-Weighted)
D <0.1% THD+N at 1 W
D Thermally Enhanced Package Option:
− DKD (36-Pin PSOP3)
D High-Efficiency Power Stage (>90%) With
140-mW Output MOSFETs
D Power-On Reset for Protection on Power Up
Without Any Power-Supply Sequencing
D Integrated Self-Protection Circuits Including:
− Undervoltage
− Overtemperature
− Overload
− Short Circuit
D Error Reporting
D EMI Compliant When Used With
Recommended System Design
D Intelligent Gate Drive
APPLICATIONS
D Mini/Micro Audio System
D DVD Receiver
D Home Theater
DESCRIPTION
The TAS5152 is a third-generation, high-performance,
integrated stereo digital amplifier power stage with
improved protection system. The TAS5152 is capable
of driving a 4-Ω bridge-tied load (BTL) at up to 125 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, comprised of a modulator (e.g., TAS5508)
and the TAS5152. 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,
12 V for GVDD and VDD, and 35 V for PVDD. The
TAS5152 does not require power-up sequencing due to
internal power-on reset. The efficiency of this digital
amplifier is greater than 90% into 6 Ω, which enables the
use of smaller power supplies and heatsinks.
The TAS5152 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 TAS5152 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.
BTL OUTPUT POWER vs SUPPLY VOLTAGE
130
120 ^{TC = 75°C}
THD+N @ 10%
110
100
90
4Ω
80
70
60
6Ω
50
40
30
20
8Ω
10
0
0
5 10 15 20 25 30 35
PVDD − Supply Voltage − V
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.
PurePath Digital and PowerPAD are trademarks of Texas Instruments.
Other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
Copyright  2005, Texas Instruments Incorporated