TDA7266D

Overview

The TDA7266D is a dual bridge Class-AB audio amplifier manufactured by STMicroelectronics. It operates on a single supply voltage ranging from 3.5 V to 12 V and delivers 5 W per channel into an 8 Ω load at THD = 10%. The device utilizes a PowerSO-20 surface-mount package with dimensions of 16 x 11.1 x 3.3 mm. Key electrical characteristics include a typical quiescent current of 6.3 mA, a closed-loop voltage gain of 26 dB, and a maximum total power dissipation of 33 W at a case temperature of 70°C.

Feature Summary

• Integrated thermal overload and short circuit protection mechanisms for enhanced reliability.
• Requires minimal external components, eliminating the need for SWR capacitors, bootstrap circuits, or Boucherot cells.
• Features internally fixed gain with dedicated standby and mute control functions.

Applications

• LCD TV and Monitor systems
• PC Motherboard audio integration
• Portable Audio equipment

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for obsolete part status, as availability may vary. Ensure proper handling procedures are followed due to surface mount packaging requirements.

Selection Notes

Select this component for designs requiring a compact stereo solution with low external part count. Suitable for applications where single-supply operation and moderate power output are sufficient. Verify thermal management capabilities align with the specific enclosure constraints.

Part Context

This part belongs to the TDA7266 series of audio amplifiers. While other variants like the TDA7266 (Multiwatt-15) and TDA7266L (SIP) exist, the TDA7266D specifically denotes the PowerSO-20 surface-mount version designed for space-constrained electronics.

Replacement Considerations

Check for equivalent dual bridge amplifiers in the PowerSO-20 package. Verify pin compatibility and thermal performance if substituting with similar STMicroelectronics or third-party devices.