50 W + 50 W dual BTL class-D audio amplifier

The TDA7492 is a dual BTL class-D audio amplifier with single power supply designed for LCD TVs and monitors.

Thanks to the high efficiency and exposed-pad-up (EPU) package, only a simple heatsink is required.

Key Features

  • 50 W + 50 W continuous output power at THD = 10% with RL = 6 Ω and VCC = 25 V
  • 40 W + 40 W continuous output power at THD = 10% with RL = 8 Ω and VCC = 25 V
  • Wide-range single-supply operation (8 - 26 V)
  • High efficiency (η = 90%)
  • Four selectable, fixed gain settings of nominally 21.6 dB, 27.6 dB, 31.1 dB and 33.6 dB
  • Differential inputs minimize common-mode noise
  • Standby and mute features
  • Short-circuit protection
  • Thermal overload protection
  • Externally synchronizable
  • ECOPACK® , environmentally friendly package

Circuit Diagram

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Design

Technical Documentation

Product Specifications
Description Version Size
DS5908 DS5908: 50 W + 50 W dual BTL class-D audio amplifier 6.0 697 KB
Application Notes
Description Version Size
AN3412 AN3412: 10 W + 10 W dual BTL class-D audio amplifier demonstration board based on the TDA7491P 1.1 1017 KB
AN4170 AN4170: 20 W + 20 W dual BTL class-D audio amplifier demonstration board based on the TDA7491HV 1.0 1 MB
AN4171 AN4171: 25 W mono BTL class-D audio amplifier demonstration board based on the TDA7491MV 1.0 792 KB
AN3956 AN3956: 5 W + 5 W dual BTL class-D audio amplifier demonstration board based on the TDA7491LP 1.0 1 MB
AN3385 AN3385: 50 W + 50 W dual BTL class-D audio amplifier demonstration board based on the TDA7492 1.0 821 KB
AN4015 AN4015: Dual-BTL class-D audio amplifier demonstration board based on the TDA7498E 1.0 2 MB

Tools and Software

Evaluation Tools
Product Evaluation Tools




Sample & Buy

Part Number Package Packing Type Operating Temperature (°C) (min) Operating Temperature (°C) (max) Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
TDA749213TR PowerSSO 36 Tape And Reel - - Active 1.824 1000 NEC EAR99 MALAYSIA MORE INFO Get Sample Add to cart DISTRIBUTOR AVAILABILITY
TDA7492 PowerSSO 36 Tube 0 70 Active 2.016 1000 NEC EAR99 MALAYSIA MORE INFO
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(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
TDA749213TR ActivePowerSSO 36IndustrialEcopack2 0 0
TDA7492 ActivePowerSSO 36IndustrialEcopack2 0 0
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(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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