TDA7563AH

Overview

The TDA7563AH is a quad bridge car radio amplifier utilizing Multipower BCD technology and DMOS output stages. It delivers 4 x 28 W at 4 Ω (14.4 V, 1 kHz, 10% THD) and up to 4 x 50 W maximum power. The device operates within an 8 V to 18 V supply range and supports 2 Ω loads with 4 x 72 W maximum capability. It features Class SB efficiency, I²C diagnostics, selectable gain of 26 dB or 12 dB, and comprehensive protection including thermal shutdown and short circuit detection.

Feature Summary

• High-efficiency Class SB architecture reduces thermal dissipation by up to 50% compared to conventional Class AB solutions.
• Integrated I²C bus enables full digital diagnostics for speaker status, DC/AC load detection, and clipping monitoring.
• DMOS output stage ensures low distortion and high output power capability for clear audio reproduction.
• Comprehensive fault protection includes linear thermal shutdown, four independent short circuit protections, and ESD protection.

Applications

• Car radio applications
• Automotive information entertainment systems
• Vehicle cabin audio amplification

Procurement Notes

Verify the specific suffix 'H' against official STMicroelectronics documentation to confirm package type and tape-and-reel specifications. Confirm current production status as automotive audio components may undergo lifecycle changes. Ensure compatibility with existing PCB footprints and I²C communication protocols before integration.

Selection Notes

Select this component for designs requiring high power density and simplified thermal management in automotive environments. The integrated diagnostics reduce external monitoring requirements. Verify that the system voltage range aligns with the 8 V to 18 V specification and that the I²C interface matches the host controller's capabilities.

Part Context

This part belongs to STMicroelectronics' automotive audio amplifier portfolio, designed for modern vehicle infotainment. It utilizes Multipower BCD technology to combine high-voltage DMOS outputs with control logic on a single chip, optimizing space and performance for car radio implementations.

Replacement Considerations

Consult official STMicroelectronics substitution guides for verified alternatives. Generic cross-references are not supported without explicit manufacturer confirmation.