TDA7261

Overview

The TDA7261 is a Class AB mono audio power amplifier designed for high-quality sound applications. It delivers 25W output into an 8-ohm load with a supply voltage range of 3V to 18V. Key electrical parameters include a gain of 30dB, THD+N of 0.05%, and a maximum operating temperature of 150°C. The device features mute and standby functions, operates on a single supply, and utilizes a Multiwatt package.

Feature Summary

• Integrated mute and standby control functions for system management
• High thermal stability supporting operation up to 150°C
• Class AB topology optimized for high-fidelity audio reproduction

Applications

• High-quality mono audio systems
• Professional audio equipment
• Home theater amplifiers

Procurement Notes

Verify the specific pinout and thermal pad requirements against the official STMicroelectronics datasheet before integration. Confirm that the selected Multiwatt package variant matches the intended PCB footprint and soldering profile. Ensure heat sinking solutions accommodate the 150°C junction temperature limit under maximum load conditions to maintain reliability.

Selection Notes

Select this component for mono-channel applications requiring robust power delivery and thermal resilience. The 25W capability at 8 ohms suits medium-power speaker drivers. Consider the 30dB fixed gain and single-supply architecture when designing input stages and power rails. Verify compatibility with external mute/standby logic levels for proper system control integration.

Part Context

Part of the TDA72xx series of audio power amplifiers from STMicroelectronics. This series focuses on delivering high performance in consumer and professional audio markets. The TDA7261 specifically targets mono configurations where higher power density and thermal endurance are critical design factors compared to stereo alternatives.

Replacement Considerations

TDA7266: Dual bridge amplifier with lower power (7W) and different channel count. Not a direct functional substitute for mono high-power needs.