TDA7264

Overview

The TDA7264 is a Class AB dual audio power amplifier designed for high-fidelity sound applications. It delivers 25 W + 25 W output at THD = 10% with an 8 Ω load and ±20 V supply. The device operates on split supplies ranging from ±5 V to ±22.5 V, featuring a typical quiescent current of 80 mA. Key electrical parameters include a total harmonic distortion of 0.02% at 1 W output, a supply voltage rejection ratio of 60 dB, and a typical slew rate of 10 V/µs. It incorporates pop-free mute and standby functions alongside comprehensive protection mechanisms.

Feature Summary

• Integrated short circuit and thermal overload protection circuits
• Pop-free mute function and low-power standby mode
• Wide operating supply voltage range supporting split power configurations

Applications

• High-fidelity music centers
• Stereo television sets

Procurement Notes

Verify the specific package variant against the datasheet, as the TDA7264 utilizes an 8-pin Multiwatt configuration distinct from other family members. Confirm that the component meets RoHS compliance standards required for the target assembly process. Ensure the design accommodates the specified thermal dissipation limits under maximum operating conditions.

Selection Notes

Select this component for stereo audio designs requiring robust protection features and minimal external components. Verify that the application supports split supply voltages within the specified operational range. Consider the thermal resistance characteristics when designing the printed circuit board layout to ensure reliable heat dissipation during continuous operation.

Part Context

This device belongs to STMicroelectronics' line of Class AB audio power amplifiers. It is specifically engineered for consumer electronics demanding high-quality audio reproduction. The architecture integrates two independent amplifier channels into a single package to reduce board space and simplify system design.

Replacement Considerations

TDA7265A