TDA7492P

Overview

The TDA7492P is a dual BTL Class-D audio amplifier with single power supply, designed for LCD TVs and monitors. It delivers 25 W + 25 W continuous output power at THD = 10% with VCC = 20 V and RL = 8 Ω. The device operates on a wide-range single supply of 8 V to 26 V. It features high efficiency (η = 90%) and four selectable fixed gain settings: nominally 21.6 dB, 27.6 dB, 31.1 dB, and 33.6 dB. Differential inputs minimize common-mode noise.

Feature Summary

• High efficiency design eliminates the need for a separate heatsink when used with an exposed-pad-down package.
• Four selectable fixed gain settings allow flexible configuration for various system requirements.
• Differential input architecture minimizes common-mode noise interference.

Applications

• LCD televisions
• LCD monitors

Procurement Notes

Verify the specific order code suffix against the manufacturer's official datasheet to confirm pinout, packaging type, and environmental compliance status. Ensure the selected variant matches the required thermal management strategy and gain configuration for the target application circuit.

Selection Notes

Select this component for applications requiring high-efficiency stereo amplification without external heat sinks. Consider the exposed-pad-down package for thermal dissipation through the PCB copper area. Verify that the load impedance and supply voltage range align with the specified 8-26 V operation and 8 Ω load conditions.

Part Context

This device belongs to STMicroelectronics' Class-D audio amplifier family, optimized for consumer electronics. It shares architectural similarities with other models in the series but offers specific power and gain characteristics tailored for display audio systems.

Replacement Considerations

The TDA7491P is noted as pin-to-pin compatible within its own sub-series, but direct substitution requires verifying power output differences and supply voltage ranges against the TDA7492P specifications.