TDA7266S

Overview

The TDA7266S is a dual bridge audio amplifier manufactured by STMicroelectronics, designed for speaker applications. It operates on a single supply voltage ranging from 3V to 18V. The device delivers a nominal output power of 5W per channel into an 8-ohm load. Key electrical parameters include a gain of 26 dB and a maximum static current of 50 mA. The component supports a maximum dissipation power of 20,000 mW and functions within an operating temperature range of 0°C to 70°C.

Feature Summary

• Dual bridge architecture providing stereo output capability
• Integrated thermal overload and short-circuit protection mechanisms
• Supports standby and mute control functions
• Requires minimal external components due to internally fixed gain

Applications

• Speaker systems in consumer electronics
• Portable radio devices
• TV audio output stages

Procurement Notes

Verify the specific suffix 'S' against the manufacturer's official datasheet to confirm pinout compatibility and package dimensions. Ensure the selected variant matches the required thermal dissipation specifications for the target enclosure. Cross-reference the ordering code with the latest STMicroelectronics documentation to avoid confusion with other TDA7266 series derivatives.

Selection Notes

Select this component when a dual bridge configuration is required for stereo audio amplification within a wide voltage window. The internal fixed gain simplifies circuit design by reducing the need for external feedback networks. Consider the thermal management requirements given the 20W dissipation rating and the through-hole ZIP-15 packaging constraints.

Part Context

This part belongs to the TDA7266 family of audio amplifiers from STMicroelectronics. The family includes variants such as the TDA7266L (mono) and TDA7266D (surface mount). The TDA7266S specifically utilizes a ZIP-15 package, distinguishing it from the Multiwatt or PowerSO packages used by other members of the same product line.

Replacement Considerations

Direct substitutes may include other dual bridge amplifiers from STMicroelectronics with similar power ratings and package types. Verify pin-to-pin compatibility before replacing. Other manufacturers offering comparable dual bridge solutions should be evaluated based on supply voltage range and protection features.