FDA802AB-VYY

Overview

The FDA802AB-VYY is a dual bridge Class D automotive power amplifier in an LQFP64 package (10x10x1.4 mm, exposed pad up). It features integrated 110 dB D/A conversion and supports I2S/TDM digital inputs at sampling frequencies of 44.1 kHz, 48 kHz, 96 kHz, and 192 kHz. The device operates on a supply range of 5.5 V to 50 V. Output capabilities include 2x120 W into 4 Ω at 35 V (THD=1%) and 2x140 W into 8 Ω at 50 V (THD=1%). It includes comprehensive diagnostics via I2C, EMI control compliant with CISPR25 Class V, and AEC-Q100 qualification.

Feature Summary

• Integrated high-performance D/A converter with 110 dB dynamic range
• Comprehensive I2C bus diagnostics including short-to-VCC/GND and load detection
• Advanced EMI control mechanisms ensuring FM/AM compatibility
• Flexible digital input interface supporting I2S and TDM protocols

Applications

• Car radio applications
• Automotive audio systems requiring low voltage operation
• Single DIN car-radio boxes with integrated tuners

Procurement Notes

Verify the specific ordering suffix 'VYY' corresponds to the tray packing format as indicated in the product summary table. Confirm that the LQFP64 package dimensions match the design requirements for the target PCB layout. Ensure the application circuit accounts for the exposed pad connection for thermal management and electrical grounding.

Selection Notes

Select this component for designs requiring high output power under boosted supply voltages up to 50 V. It is suitable for applications needing independent channel operation and robust diagnostic feedback. Consider the wide operating supply range from 5.5 V to 50 V for compatibility with various automotive battery architectures.

Part Context

This part belongs to the FDA802 family of fully digital single-chip Class D amplifiers. It utilizes advanced BCD technology to integrate powerful MOSFET outputs with digital signal processing. The family is designed to minimize external components while providing excellent audio performance and immunity to GSM/RF interferences.

Replacement Considerations

The FDA802AB-VYT is a functional equivalent offering the same specifications but packaged in tape and reel format instead of trays.