TDA7868

Overview

The TDA7868 is a quad bridge power amplifier designed for automotive audio systems. It features digital input capabilities and operates in Class-D topology to deliver high efficiency. The device integrates four independent amplifier channels, providing robust audio output suitable for modern infotainment and cockpit applications. It utilizes the Flexiwatt25 package for effective thermal management and reliable performance under varying automotive operating conditions.

Feature Summary

• Digital input interface for integration with modern vehicle audio sources
• Quad bridge configuration delivering high power output across four channels
• Optimized low standby current consumption for automotive power efficiency
• Advanced diagnostic features integrated within the amplifier architecture

Applications

• Automotive infotainment systems
• Vehicle cockpit audio solutions
• e-Call system audio processing
• Telematics audio modules

Procurement Notes

Verify the specific ordering suffix to ensure correct package variant and temperature grade compatibility. Confirm that the digital input voltage levels match the host controller specifications. Check for required external components such as filter inductors and capacitors as defined in the official datasheet. Ensure the supply voltage range aligns with the vehicle's electrical system requirements before procurement.

Selection Notes

Select this component for applications requiring a compact quad bridge solution with digital connectivity. Consider the Flexiwatt25 package constraints regarding PCB layout and thermal dissipation. Evaluate the need for advanced diagnostic reporting if system fault detection is critical. Compare power output requirements against the 25W per channel capability to ensure adequate headroom for the target speaker load.

Part Context

This part belongs to STMicroelectronics' portfolio of automotive audio amplifiers. It complements other Class-D solutions by offering a balance of high power density and digital integration. The series targets the growing demand for sophisticated audio experiences in connected vehicles while maintaining strict automotive reliability standards.

Replacement Considerations

Consult official substitution lists for pin-compatible alternatives. Verify that any replacement maintains the same digital input protocol and bridge configuration. Ensure thermal characteristics and package dimensions are compatible with the existing design.

FAQ

What type of input does the TDA7868 support?

The TDA7868 supports digital inputs, allowing direct connection to digital audio sources without requiring external DACs.

How many amplifier channels are integrated in this device?

The device integrates four independent amplifier channels configured as a quad bridge amplifier.