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TDA7498

TDA7498 Description

The TDA7498 from STMicroelectronics is a high-performance Class D stereo audio amplifier IC designed for demanding audio applications. With a maximum output power of 100W per channel at 6Ω, it operates over a wide supply voltage range of 14V to 39V, making it suitable for both consumer and professional audio systems. Packaged in a PowerSSO36 tube, this surface-mount device is RoHS3 compliant and adheres to REACH Unaffected standards. Although marked as obsolete, it remains a robust choice for legacy designs requiring high-efficiency amplification. Its Moisture Sensitivity Level (MSL) of 3 (168 hours) ensures reliability in controlled environments.

TDA7498 Features

• High Power Output: Delivers 100W x 2 channels @ 6Ω, ideal for driving high-impedance speakers.
• Wide Voltage Range (14V–39V): Supports flexible power supply configurations, including 24V/36V industrial systems.
• Class D Efficiency: Minimizes heat dissipation and power loss compared to Class AB amplifiers.
• Compact PowerSSO36 Package: Saves board space while enabling high-power performance.
• Robust Compliance: Meets ROHS3, REACH Unaffected, and EAR99 export control standards.
• Surface-Mount Design: Simplifies PCB integration for modern audio systems.

TDA7498 Applications

• Home Theater Systems: High-fidelity amplification for surround sound setups.
• Professional Audio Equipment: Powered mixers, PA systems, and stage monitors.
• Automotive Audio: Aftermarket upgrades requiring efficient, high-power amplification.
• Powered Speakers: Active speaker designs with compact form factors.
• Legacy System Upgrades: Replacement for obsolete amplifiers in industrial/commercial audio.

Conclusion of TDA7498

The TDA7498 stands out as a high-power, high-efficiency Class D amplifier with broad voltage compatibility, making it versatile for audio applications. While obsolete, its 100W/channel output, compact packaging, and compliance with environmental standards ensure it remains a viable solution for legacy and specialized designs. Engineers seeking a balance of power, efficiency, and integration ease will find it suitable for professional and high-end consumer audio systems.