STMicroelectronics

TDA7492

TDA7492 Description

The TDA7492 from STMicroelectronics is a Class D stereo audio amplifier IC designed for high-efficiency audio applications. Operating within a 8V to 26V supply range, it delivers 50W per channel at 6Ω, making it suitable for medium-power audio systems. Packaged in a PowerSSO36 tube, this surface-mount device is optimized for compact designs while ensuring robust performance. Although marked as obsolete, it remains relevant for legacy designs due to its ROHS3 compliance and REACH-unaffected status. The TDA7492 operates within a 0°C to 70°C temperature range and adheres to ECCN EAR99 and HTSUS 8542.33.0001 classifications.

TDA7492 Features

• High Output Power: Delivers 50W x 2 channels at 6Ω, ideal for demanding audio applications.
• Wide Voltage Range: Supports 8V–26V input, offering flexibility in power supply design.
• Class D Efficiency: Ensures minimal heat dissipation and high energy efficiency compared to Class AB amplifiers.
• Compact Form Factor: PowerSSO36 package enables space-saving PCB layouts.
• Compliance: Meets ROHS3 and REACH environmental standards, suitable for global markets.
• Moisture Sensitivity: Rated MSL 3 (168 hours), ensuring reliability in humid conditions.

TDA7492 Applications

• Home Audio Systems: Powers bookshelf speakers, soundbars, and compact stereo setups.
• Portable Audio Equipment: Ideal for battery-operated devices due to its efficient Class D operation.
• Automotive Infotainment: Suitable for auxiliary audio amplification in vehicles (within voltage limits).
• Professional Audio: Used in small PA systems or monitor amplifiers where moderate power is sufficient.
• Legacy Designs: Maintains compatibility with older systems requiring a proven, high-efficiency amplifier.

Conclusion of TDA7492

The TDA7492 is a versatile Class D amplifier offering a balance of power efficiency, compact design, and compliance with environmental standards. While obsolete, its 50W per channel output and wide voltage range make it a reliable choice for audio applications requiring moderate power in constrained spaces. Engineers designing home audio, portable systems, or legacy upgrades may find this IC a cost-effective solution despite its discontinued status.