HFDA801H-VYY

Overview

The HFDA801H-VYY is a quad-channel Class D audio amplifier IC manufactured by STMicroelectronics. It delivers 80W per channel at 8-ohm impedance. The device integrates a 24-bit digital input interface and utilizes advanced BCD technology for automotive applications. Key specifications include a 2MHz switching frequency and high-resolution bandwidth, ensuring Hi-Fi audio quality with integrated diagnostics.

Feature Summary

• Quad-channel Class D architecture delivering high power output
• Digital input interface with 24-bit resolution integration
• Advanced diagnostic capabilities for system monitoring
• High switching frequency operation for efficient performance

Applications

• Automotive audio systems
• Car door module amplification
• Center console speaker drivers
• Subwoofer channel driving

Procurement Notes

Verify the exact suffix (VYY) against the manufacturer's current datasheet to confirm package type and tape/reel specifications. Ensure compatibility with the specific automotive grade requirements of the target application. Cross-reference the part number with official STMicroelectronics distributors to avoid counterfeit components. Confirm that the 64-LQFP-EP package footprint matches the PCB design constraints.

Selection Notes

Select this component when a quad-channel solution is required for automotive audio applications. The 80W per channel output suits direct speaker driving without external pre-amplifiers. The digital input interface simplifies connection to digital audio sources like DSPs or infotainment units. Consider the thermal management requirements associated with the LQFP-EP package for high-power continuous operation.

Part Context

This part belongs to the HFDA801 family of automotive audio amplifiers from STMicroelectronics. It shares architectural similarities with the FDA801 but offers enhanced digital integration. The family is designed using BCD technology to meet stringent automotive reliability standards. It serves as a high-performance alternative to analog-input amplifiers in modern vehicle sound systems.

Replacement Considerations

The HFDA801A is a related variant within the same product family. Verify pin-to-pin compatibility and software configuration differences before substitution. Check if the specific VYY suffix packaging differs from other available suffixes in the series.