FDA801S-VYT

Overview

The FDA801S-VYT is a quad-channel Class-D digital input automotive power amplifier manufactured by STMicroelectronics. It operates within a supply voltage range of 5.5 V to 50 V and delivers up to 540 W of output power. The device utilizes a 64-lead LQFP package with an exposed pad (LQFP-64) for surface mount installation. Designed for automotive environments, it supports operation at temperatures from -40°C to 105°C and holds AEC-Q101 qualification. The component features digital audio inputs and integrated I2C diagnostics capabilities.

Feature Summary

• Quad-channel Class-D architecture optimized for high-power automotive audio systems
• Digital input interface with integrated I2C diagnostic reporting
• Robust power supply range supporting wide automotive voltage fluctuations
• AEC-Q101 qualified for automotive reliability standards

Applications

• Automotive infotainment system main amplification
• High-power cabin audio distribution networks
• Digital audio processing units requiring diagnostic feedback

Procurement Notes

Verify the current lifecycle status before design integration, as this specific part number may be marked as Not Recommended for New Designs (NRND). Confirm availability through authorized distributors, noting that stock levels can be restricted or unavailable in certain regions. Ensure the selected package variant matches the required PCB footprint and thermal management specifications for the target application.

Selection Notes

Select this component when designing automotive audio systems requiring high total output power with digital control interfaces. The integrated I2C diagnostics provide essential monitoring for system health and fault detection. Consider the 64-lead LQFP package constraints for thermal dissipation and board space. Verify compatibility with the host controller's digital audio protocol and I2C bus requirements before finalizing the schematic.

Part Context

The FDA801S-VYT belongs to the FDA80x series of automotive-grade audio amplifiers from STMicroelectronics. This series focuses on delivering high efficiency and power density for modern vehicle entertainment systems. The 'S' suffix typically denotes specific feature sets or packaging variations within the broader FDA801 family, distinguishing it from non-diagnostic or different power variants like the FDA801-VYT.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official STMicroelectronics replacement guides or contact technical support for validated alternatives if this NRND component is no longer suitable for new production.