E-TDA7454

Overview

The E-TDA7454 is a four-channel Class-AB audio amplifier manufactured by STMicroelectronics, designed for car radio applications. It delivers 60 W of output power into a 4 Ohm load with a total harmonic distortion plus noise of 0.15%. The device operates on a single power supply ranging from 8 V to 18 V and features a gain of 26 dB. It supports up to 8 A of output current and draws 8 A of operating supply current. The component is housed in a Flexiwatt-25 through-hole package and is qualified under the AEC-Q100 automotive standard. It functions within a temperature range of -55 °C to +150 °C.

Feature Summary

• Four-channel quad architecture optimized for automotive audio systems
• AEC-Q100 qualification ensuring reliability in automotive environments
• High thermal tolerance supporting operation up to 150 °C
• Single-supply operation simplifying circuit integration

Applications

• Car radio amplifiers
• Automotive audio processing units
• Vehicle sound system main amplification stages

Procurement Notes

Verify the specific suffix or variant code against the official datasheet to ensure compatibility with required packaging and temperature grades. Confirm that the Flexiwatt-25 package dimensions match the target PCB footprint. Check for any recent lifecycle status updates, as availability may vary. Ensure the selected unit meets the specific AEC-Q100 grade requirements for the intended automotive application.

Selection Notes

Select this component when a high-power, multi-channel solution is needed for vehicle infotainment systems. The 60 W output capability suits direct speaker driving without additional pre-amplification stages. Consider the 8 A current requirement for adequate power supply design. The wide operating voltage range allows flexibility in different vehicle electrical architectures. Verify thermal management capabilities given the high junction temperature rating.

Part Context

The TDA7454 belongs to STMicroelectronics' portfolio of dedicated automotive audio integrated circuits. It is part of a series designed to meet the rigorous demands of in-car entertainment systems. The component integrates multiple amplifier channels into a single package to reduce board space and simplify assembly. Its robust construction supports the harsh electrical and thermal conditions typical of automotive interiors.

Replacement Considerations

Consult official replacement guides for cross-reference options. Verify pinout compatibility before substituting with similar automotive audio amplifiers. Ensure the alternative component meets the same AEC-Q100 qualification standards.