onsemi

LA4450-E

LA4450-E Description

The LA4450-E from onsemi is a Class AB stereo audio amplifier IC designed for high-performance audio applications. Packaged in a 14-pin SIP (Single In-line Package) and delivered in a tube, this through-hole-mount component delivers 20W per channel into a 4Ω load with a supply voltage range of 10V to 30V. Though marked as obsolete, it remains a robust choice for legacy designs requiring reliable amplification. The device complies with ECCN EAR99 and HTSUS 8542.33.0001, ensuring broad regulatory compatibility. Its Moisture Sensitivity Level (MSL) 1 rating guarantees durability in standard handling conditions, while its REACH Unaffected status confirms compliance with environmental regulations.

LA4450-E Features

• High Output Power: Delivers 20W x 2 channels @ 4Ω, making it suitable for medium-power audio systems.
• Wide Voltage Range: Operates from 10V to 30V, offering flexibility in various power supply configurations.
• Class AB Efficiency: Balances low distortion and moderate power efficiency, ideal for high-fidelity audio reproduction.
• Robust Packaging: 14SIPH through-hole design ensures mechanical stability in industrial and consumer applications.
• Regulatory Compliance: Meets EAR99 and REACH standards, simplifying integration into global supply chains.

LA4450-E Applications

The LA4450-E excels in audio amplification systems where moderate power and reliability are critical. Key applications include:

• Home Audio Systems: Stereo amplifiers for bookshelf speakers or compact sound systems.
• Automotive Audio: Auxiliary amplification in legacy car audio setups (within voltage limits).
• Public Address (PA) Systems: Low-to-medium-power amplification for announcements or background music.
• Legacy Electronics Repair: A dependable replacement for obsolete audio amplifiers in vintage equipment.

Conclusion of LA4450-E

The LA4450-E is a discontinued but capable Class AB stereo amplifier offering 20W per channel, wide voltage compatibility, and robust through-hole packaging. While newer alternatives may exist, its proven performance and regulatory compliance make it a viable choice for legacy designs, repairs, or applications where high-fidelity audio and moderate power are priorities. Engineers seeking a reliable, easy-to-integrate amplifier for industrial or consumer audio systems may find this IC a practical solution despite its obsolete status.