TAS5342| Datasheet

Datasheet preview, take a look at Datasheets before downloading (Data Sheet is available on manufacturer site)

TAS5342
SLAS557B SEPTEMBER 2007 REVISED OCTOBER 2007

www.ti.com

100 W STEREO DIGITAL AMPLIFIER POWER STAGE
1

FEATURES DESCRIPTION
The TAS5342 is a high-performance, integrated stereo digital amplifier power stage designed to drive a 4- bridge-tied load (BTL) at up to 100 W per channel with low harmonic distortion, low integrated noise, and low idle current. The TAS5342 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
130 125 120 115 110 105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 0

Total Power Output (Bridge Tied Load) 2 100 W at 10% THD+N Into 4 2 80 W at 10% THD+N Into 6 2 65 W at 10% THD+N Into 8 Total Power Output (Single Ended) 4 40 W at 10% THD+N Into 3 4 30 W at 10% THD+N Into 4 Total Power Output (Parallel Mode) 1 200 W at 10% THD+N Into 2 1 160 W at 10% THD+N Into 3 >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-m Output MOSFETs Thermally Enhanced Package 44-Pin HTSSOP (DDV) Error Reporting, 3.3-V and 5.0-V Compliant EMI Compliant When Used With Recommended System Design
23

TC = 75 C THD+N at 10%

PO Output Power W

12 14 16

24 26

28 30

PVDD Supply Voltage V
PurePath DigitalTM

APPLICATIONS
Mini/Micro Audio System DVD Receiver Home Theater

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. All other trademarks are the property of their respective owners.
Copyright 2007, Texas Instruments Incorporated

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.