STMicroelectronics

TDA7253

TDA7253 Description

The TDA7253 from STMicroelectronics is a Class AB monolithic audio power amplifier designed for mono-channel applications, delivering 10W output power into an 8Ω load. Operating within a 10V to 32V supply voltage range, it is optimized for robust performance in consumer and industrial audio systems. Packaged in a Through Hole format and supplied in Tube packaging, this IC is RoHS3 compliant and adheres to REACH Unaffected standards. Although marked as Obsolete, it remains relevant for legacy designs requiring reliable amplification with minimal external components.

TDA7253 Features

• High Output Power: Delivers 10W @ 8Ω, making it suitable for mid-power audio applications.
• Wide Supply Range: Operates from 10V to 32V, accommodating diverse power supply configurations.
• Class AB Efficiency: Balances low distortion and moderate power efficiency, ideal for high-fidelity audio.
• Robust Packaging: Through Hole design ensures durability in industrial environments.
• Compliance: RoHS3 compliant and REACH Unaffected, meeting environmental regulations.
• Thermal Stability: Operates within 0°C to 70°C (TA), ensuring reliability under typical conditions.

TDA7253 Applications

• Consumer Audio: Ideal for compact stereo systems, TV audio modules, and portable speakers.
• Industrial Systems: Used in PA systems, intercoms, and announcement devices requiring stable amplification.
• Legacy Designs: Suitable for retrofit projects or maintenance of older audio equipment due to its straightforward implementation.
• Automotive Auxiliary Audio: Compatible with 12V/24V automotive power systems for aftermarket audio upgrades.

Conclusion of TDA7253

The TDA7253 is a dependable Class AB amplifier offering a balance of power, efficiency, and simplicity. While obsolete, its wide voltage range, robust packaging, and compliance make it a practical choice for legacy or cost-sensitive designs. Engineers valuing ease of integration and moderate power output will find it suitable for consumer, industrial, and automotive audio applications. For modern designs, alternative Class D amplifiers may offer higher efficiency, but the TDA7253 remains a viable option for specific use cases.