TDA7564BH

Overview

The TDA7564BH is a quad bridge car radio amplifier utilizing BCD technology, housed in a Flexiwatt25 or PowerSO36 package. It delivers 75W per channel into a 1-ohm load and 50W per channel into a 2-ohm load. The device operates on an 8V to 18V supply voltage. It features built-in diagnostics for thermal protection, short-circuit detection, and over-voltage monitoring. This component is designed specifically for automotive infotainment systems requiring high-efficiency audio amplification with robust fault protection mechanisms.

Feature Summary

• Quad bridge architecture optimized for automotive radio applications
• Integrated diagnostic functions including thermal and short-circuit protection
• BCD technology implementation for enhanced reliability

Applications

• Car radio power amplification
• Automotive infotainment systems
• Cockpit audio processing units

Procurement Notes

Verify the specific suffix (e.g., BH) against the manufacturer's current datasheet to ensure compatibility with required packaging and tape-and-reel specifications. Confirm that the Flexiwatt25/PowerSO36 footprint matches the target PCB design. Cross-reference the revision level to ensure all diagnostic feature implementations align with system requirements before finalizing procurement orders.

Selection Notes

Select this component when a single-chip solution for four-channel audio amplification is required in automotive environments. Ensure the application supports the 8V to 18V operating range and can accommodate the thermal dissipation needs of the Flexiwatt25 package. Verify that the load impedance requirements (1 ohm or 2 ohms) match the speaker configuration to achieve the specified power output levels without triggering protection circuits.

Part Context

This part belongs to STMicroelectronics' portfolio of automotive audio amplifiers. It represents a multifunction quad power amplifier series designed to replace discrete solutions. The TDA7564BH integrates multiple channels into a single compact package, reducing board space and simplifying the design process for modern vehicle cockpit systems compared to earlier generation mono or stereo amplifiers.

Replacement Considerations

Check for direct substitutes within the same family, such as the TDA7564B_V01, ensuring pinout and electrical characteristics remain identical. Verify if newer revisions offer improved thermal performance or updated diagnostic capabilities while maintaining mechanical compatibility.