TDA7492

Overview

The TDA7492 is a dual BTL Class-D audio amplifier designed for LCD TVs and monitors. It operates on a wide-range single supply from 8 V to 26 V. The device delivers 50 W + 50 W continuous output power at THD = 10% with RL = 6 Ω and VCC = 25 V, or 40 W + 40 W with RL = 8 Ω. It features high efficiency of 90%, four selectable fixed gain settings (21.6 dB, 27.6 dB, 31.1 dB, 33.6 dB), differential inputs, standby/mute functions, short-circuit protection, thermal overload protection, and external synchronization capability.

Feature Summary

• Dual BTL Class-D architecture with exposed-pad-up package for efficient heat dissipation without large heatsinks
• Four selectable fixed gain settings to minimize common-mode noise via differential inputs
• Integrated standby, mute, short-circuit, and thermal overload protections

Applications

• LCD TV systems
• Monitor displays

Procurement Notes

Verify the specific ordering code against the official STMicroelectronics datasheet to ensure correct packaging and temperature range. Confirm that the required gain setting and protection features align with the target application design before procurement.

Selection Notes

Select this component for applications requiring high-efficiency dual-channel amplification in space-constrained environments like LCD TVs. Ensure the power supply voltage remains within the 8 V to 26 V range and that the load impedance matches the specified power output ratings.

Part Context

This part belongs to the TDA7492 series of high-power audio amplifiers. It is specifically engineered for consumer electronics where efficiency and thermal management are critical. The device utilizes an ECOPACK environmentally friendly package.

Replacement Considerations

Check for direct pin-compatible alternatives within the same STMicroelectronics audio amplifier family. Verify that any substitute maintains the same Class-D topology, supply voltage range, and protection features.