TDA7266L

Overview

The TDA7266L is a mono bridge amplifier IC designed for TV and portable radio applications. It operates on a single supply voltage ranging from 3.5V to 18V, with an absolute maximum rating of 20V. The device delivers up to 7W of output power into an 8-ohm load at 10% THD. Key electrical parameters include a typical quiescent current of 50mA, a closed-loop voltage gain of 32dB, and a mute attenuation of 80dB. It features thermal overload protection with a threshold of 150°C and short-circuit protection.

Feature Summary

• Integrated mono bridge amplifier architecture requiring minimal external components
• Includes standby and mute functions for controlled power management
• Built-in short-circuit and thermal overload protection mechanisms

Applications

• Television audio systems
• Portable radio receivers

Procurement Notes

Verify component status as the TDA7266L is listed as obsolete by STMicroelectronics. Confirm availability through authorized distributors or secondary market suppliers. Ensure compatibility with existing PCB layouts designed for SIP10 packages before procurement.

Selection Notes

Select this component for designs requiring a high-power mono bridge amplifier in a through-hole SIP10 package. Consider its wide supply voltage range suitable for battery-operated devices. Evaluate alternative active models if long-term supply stability is required for new production runs.

Part Context

The TDA7266L belongs to the TDA7266 series of audio power amplifiers manufactured by STMicroelectronics. It utilizes BI20II technology and is housed in a 10-SIP (Single In-line Package). This specific variant provides a mono configuration compared to stereo versions within the same family.

Replacement Considerations

Datasheet notes mechanical compatibility with TDA7266S, TDA7266, and TDA7297 in Multiwatt 15 packages, though pinouts differ. Verify functional equivalence and pin mapping carefully when substituting.