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LM4873MTE-1

LM4873MTE-1 Description

The LM4873MTE-1 is a high-performance audio amplifier from National Semiconductor, specifically designed for applications requiring robust audio output capabilities. This Class AB amplifier is part of the Boomer® series, renowned for its exceptional audio quality and reliability. The LM4873MTE-1 supports a maximum output power of 3W per channel at a 3-ohm load and 440mW per channel at an 8-moh load, making it suitable for a wide range of audio applications.

This amplifier operates within a supply voltage range of 2V to 5.5V, providing flexibility in power supply requirements. It features a surface-mount package, which is ideal for compact and space-efficient designs. The LM4873MTE-1 also includes several advanced features such as depop, an input multiplexer, shutdown functionality, and thermal protection, ensuring optimal performance and reliability.

Despite being marked as obsolete, the LM4873MTE-1 remains a valuable component for engineers and designers working on legacy systems or those who require its specific performance characteristics. Its ECCN classification is EAR99, and it is categorized under Linear Amplifiers(ICs) with the HTSUS code 8542.33.0001.

LM4873MTE-1 Features

The LM4873MTE-1 offers several key features that set it apart from other audio amplifiers:

• High Output Power: Capable of delivering 3W per channel at a 3-ohm load and 440mW per channel at an 8-ohm load, ensuring powerful audio output.
• Wide Supply Voltage Range: Operates efficiently within a 2V to 5.5V supply voltage range, providing flexibility in power supply options.
• Advanced Features: Includes depop, input multiplexer, shutdown, and thermal protection, enhancing performance and reliability.
• Surface-Mount Package: Ideal for compact and space-efficient designs, making it suitable for a variety of applications.
• Thermal Protection: Ensures the amplifier operates within safe temperature limits, preventing damage and extending component lifespan.

LM4873MTE-1 Applications

The LM4873MTE-1 is well-suited for a variety of applications where high-quality audio output is required. Some specific use cases include:

• Consumer Electronics: Ideal for portable audio devices, such as MP3 players, tablets, and smartphones, where compact size and high audio quality are essential.
• Automotive Audio Systems: Suitable for in-car entertainment systems, providing powerful and clear audio output.
• Professional Audio Equipment: Can be used in professional audio applications, such as mixing consoles and sound reinforcement systems, where reliability and performance are critical.
• Industrial Applications: Useful in industrial settings where robust audio output is required, such as alarm systems and public address systems.

Conclusion of LM4873MTE-

1The LM4873MTE-1 is a versatile and high-performance audio amplifier that offers significant advantages over similar models. Its combination of high output power, wide supply voltage range, and advanced features makes it an excellent choice for a wide range of applications. Despite its obsolete status, the LM4873MTE-1 remains a reliable and powerful option for engineers and designers who require its specific performance characteristics.