TDA7491P:10W+10W dual BTL class-D audio amplifier

The TDA7491P 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-down (EPD) package no separate heatsink is required.

Furthermore, the filterless operation allows a reduction in the external component count.

The TDA7491P is pin-to-pin compatible with the TDA7491LP and TDA7491HV.

Key Features

  • 10 W + 10 W continuous output power:RL = 6 Ω, THD = 10% at VCC = 11 V
  • 9.5 W + 9.5 W continuous output power:RL = 8 Ω, THD = 10% at VCC = 12 V
  • Wide range single supply operation (5 V - 18 V)
  • High efficiency (η = 90%)
  • Four selectable, fixed gain settings of nominally 20 dB, 26 dB, 30 dB and 32 dB
  • Differential inputs minimize common-mode noise
  • Filterless operation
  • No ‘pop’ at turn-on/off
  • Standby and mute features
  • Short-circuit protection
  • Thermal overload protection
  • Externally synchronizable
Product Specifications
DescriptionVersionSize
DS5297: 2 x 10-watt dual BTL class-D audio amplifier6.01 MB
Application Notes
DescriptionVersionSize
AN3412: 10 W + 10 W dual BTL class-D audio amplifier demonstration board based on the TDA7491P1.11017 KB
AN4170: 20 W + 20 W dual BTL class-D audio amplifier demonstration board based on the TDA7491HV1.01 MB
AN4171: 25 W mono BTL class-D audio amplifier demonstration board based on the TDA7491MV1.0792 KB
AN3956: 5 W + 5 W dual BTL class-D audio amplifier demonstration board based on the TDA7491LP1.01 MB
AN3385: 50 W + 50 W dual BTL class-D audio amplifier demonstration board based on the TDA74921.0821 KB
AN4015: Dual-BTL class-D audio amplifier demonstration board based on the TDA7498E1.02 MB
Product Evaluation Tools
Part NumberManufacturerDescription
STEVAL-CCA028V110 W + 10 W class-D audio amplifier demonstration board based on the TDA7491P
Sample & Buy
Part NumberPackagePacking TypeOperating Temperature (°C) (min)Operating Temperature (°C) (max)Unit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
TDA7491P13TRPowerSSO 36Tape And Reel-40851.8821000NECEAR99MALAYSIA
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
TDA7491P13TRPowerSSO 36IndustrialEcopack2mdf_eh-wspc-powerssso36_ua89aa5.pdf
2 x 10-watt dual BTL class-D audio amplifier TDA7491P
circuit_diagram_13540_thumbnail.png TDA7491P
10 W + 10 W dual BTL class-D audio amplifier demonstration board based on the TDA7491P STEVAL-CCA028V1
20 W + 20 W dual BTL class-D audio amplifier demonstration board based on the TDA7491HV STEVAL-CCA042V1
25 W mono BTL class-D audio amplifier demonstration board based on the TDA7491MV TDA7491P
5 W + 5 W dual BTL class-D audio amplifier demonstration board based on the TDA7491LP STEVAL-CCA029V1
50 W + 50 W dual BTL class-D audio amplifier demonstration board based on the TDA7492 STEVAL-CCA027V1
Dual-BTL class-D audio amplifier demonstration board based on the TDA7498E TDA7491P
mdf_eh-wspc-powerssso36_ua89aa5.pdf TDA7491P