TDA7492PE

Overview

The TDA7492PE is a dual BTL Class-D audio amplifier designed for home audio applications. It operates on a single supply voltage ranging from 7 V to 26 V and features four selectable fixed-gain settings of nominally 20.8 dB, 26.8 dB, 30 dB, and 32.8 dB. In stereo BTL configuration at VCC = 22 V, it delivers up to 41 W per channel into a 6 Ω load with 10% THD. Parallel BTL mono operation provides up to 90 W into a 3 Ω load under the same conditions. The device utilizes a 36-pin PowerSSO-36 package with an exposed pad down (EPD) for thermal management.

Feature Summary

• Supports multiple output configurations including stereo BTL and parallel BTL mono modes.
• Features differential inputs to minimize common-mode noise interference.
• Includes smart protections such as overcurrent, thermal overload, and power limiting functions.
• Offers standby, mute, and play operating modes for flexible system control.

Applications

• Home audio systems
• Stereo speaker setups
• Mono subwoofer amplification

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm packaging type. The 'E' suffix indicates the exposed pad down (EPD) variant housed in a tube, whereas the 'R' suffix denotes tape and reel packaging. Confirm that the required operating temperature range aligns with the -40°C to +85°C specification provided in the datasheet before finalizing procurement orders.

Selection Notes

Select this component when designing high-efficiency audio stages requiring wide supply voltage flexibility between 7 V and 26 V. The exposed pad down package facilitates heat dissipation through the PCB, potentially reducing the need for external heatsinks in compact enclosures. Ensure the application circuit accommodates the necessary gain setting resistors and protection pin connections to utilize the built-in safety features effectively.

Part Context

This part belongs to the TDA7492 family of Class-D amplifiers manufactured by STMicroelectronics. While other variants like the TDA7492P feature exposed pad up packages for different thermal requirements, the TDA7492PE specifically targets applications where board-level thermal conduction via the bottom pad is preferred. It serves as a robust solution for driving speakers in consumer electronics with minimal external filtering requirements.

Replacement Considerations

TDA7492PETR is the tape and reel version of this component.

FAQ

How does the TDA7492PE handle thermal overload?

When the internal die temperature exceeds 140 °C, the device enters mute mode. If the temperature rises further to 150 °C, the power stage shuts down immediately and automatically recovers once the temperature drops below the threshold.

What are the available gain settings for this amplifier?

The device offers four selectable fixed-gain settings controlled by the GAIN pin: nominally 20.8 dB, 26.8 dB, 30 dB, and 32.8 dB.