TAS5352 Datasheet, PDF (1/27 Pages) Texas Instruments – 125 W STEREO DIGITAL AMPLIFIER POWER STAGE

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TM
TAS5352
SLES204 – SEPTEMBER 2007
125 W STEREO DIGITAL AMPLIFIER POWER STAGE
FEATURES
1
•23 Total Power Output (Bridge Tied Load)
– 2 × 125 W at 10% THD+N Into 4 Ω
– 2 × 100 W at 10% THD+N Into 6 Ω
• Total Power Output (Single Ended)
– 4 × 45 W at 10% THD+N Into 3 Ω
– 4 × 35 W at 10% THD+N Into 4 Ω
• Total Power Output (Parallel Mode)
– 1 × 250 W at 10% THD+N Into 2 Ω
– 1 × 195 W at 10% THD+N Into 3 Ω
• >110 dB SNR (A-Weighted With TAS5518
Modulator)
• <0.1% THD+N (1 W, 1 kHz)
• Supports PWM Frame Rates of 192 kHz to 432
kHz
• Resistor-Programmable Current Limit
• Integrated Self-Protection Circuitry, Including:
– Under Voltage Protection
– Overtemperature Warning and Error
– Overload Protection
– Short-Circuit Protection
– PWM Activity Detector
• Standalone Protection Recovery
• Power-On Reset (POR) to Eliminate System
Power-Supply Sequencing
• High-Efficiency Power Stage (>90%) With
80-mΩ Output MOSFETs
• Thermally Enhanced 44-Pin HTSSOP Package
(DDV)
• Error Reporting, 3.3-V and 5.0-V Compliant
• EMI Compliant When Used With
Recommended System Design
APPLICATIONS
• Mini/Micro Audio System
• DVD Receiver
• Home Theater
DESCRIPTION
The TAS5352 is a high-performance, integrated
stereo digital amplifier power stage designed to drive
a 4-Ω bridge-tied load (BTL) at up to 125 W per
channel with low harmonic distortion, low integrated
noise, and low idle current.
The TAS5352 has a complete protection system
integrated on-chip, safeguarding the device against a
wide range of fault conditions that could damage the
system. These protection features are short-circuit
protection, over-current protection, under voltage
protection, over temperature protection, and a loss of
PWM signal (PWM activity detector).
A power-on-reset (POR) circuit is used to eliminate
power-supply sequencing that is required for most
power-stage designs.
BTL OUTPUT POWER
vs
SUPPLY VOLTAGE
150
140 T_C = 75°C
130 ^{THD+N at 10%}
120
110
4Ω
100
90
80
70
6Ω
60
50
40
30
8Ω
20
10
0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34
PVDD – Supply Voltage – V
PurePath Digital™
1
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, PowerPad are trademarks of Texas Instruments.
2
All other trademarks are the property of their respective owners.
3
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2007, Texas Instruments Incorporated