Texas Instruments

LM4820IBP-6  

Audio Amplifiers

LM4820IBP-6 Description

The LM4820IBP-6 is a monolithic Class AB audio power amplifier designed for high performance in a wide range of consumer and professional audio applications. Manufactured by Texas Instruments, this amplifier is part of the Boomer® series, known for its excellent audio quality and reliability. The LM4820IBP-6 delivers a maximum output power of 1 watt per channel into an 8-ohm load, making it suitable for driving small to medium-sized speakers efficiently.

This amplifier operates within a supply voltage range of 2V to 5.5V, providing flexibility in power supply options and ensuring compatibility with various power sources. The LM4820IBP-6 is housed in a surface-mount package, specifically the 8USMD format, which is ideal for compact and space-constrained designs. The package is available in tape and reel (TR) form, facilitating automated assembly processes and ensuring high production efficiency.

LM4820IBP-6 Features

The LM4820IBP-6 offers several unique features that enhance its performance and reliability:

• Depop Feature: This feature minimizes the pop and click sounds that can occur during power-up and power-down, ensuring a smooth and pleasant user experience.
• Shutdown Capability: The shutdown function allows the amplifier to be placed in a low-power state, significantly reducing power consumption when not in use. This is particularly beneficial for battery-powered devices, extending their operational life.
• Thermal Protection: Built-in thermal protection safeguards the amplifier from damage due to excessive heat, ensuring long-term reliability and robustness in various operating conditions.

The LM4820IBP-6 is also REACH unaffected, ensuring compliance with environmental regulations and making it suitable for global markets. Additionally, it has a moisture sensitivity level (MSL) of 1, indicating that it is not sensitive to moisture and can be stored and handled without special precautions.

LM4820IBP-6 Applications

The LM4820IBP-6 is ideal for a variety of applications where high audio quality and compact design are essential. Its Class AB topology provides excellent sound quality with minimal distortion, making it suitable for:

• Portable Audio Devices: Including MP3 players, smartphones, and tablets, where space and power efficiency are critical.
• Home Audio Systems: For compact speaker systems and soundbars, delivering high-fidelity audio without compromising on size.
• Professional Audio Equipment: Such as small PA systems and studio monitors, where reliability and audio performance are paramount.

The LM4820IBP-6's ability to operate within a wide voltage range and its surface-mount package make it highly versatile for different power supply configurations and form factors. Its depop and shutdown features further enhance its suitability for battery-powered devices, ensuring minimal power consumption and a seamless user experience.

Conclusion of LM4820IBP-6

The LM4820IBP-6 is a robust and versatile Class AB audio power amplifier that offers excellent performance in a compact form factor. Its unique features, such as depop, shutdown, and thermal protection, provide significant advantages over similar models, ensuring high reliability and user satisfaction. While the product is now obsolete, its legacy continues to influence the design of modern audio amplifiers. For applications requiring high audio quality, compact design, and efficient power management, the LM4820IBP-6 remains a notable reference point in the field of linear amplifiers.

LM4820IBP-6 Documents

Download datasheets and manufacturer documentation for LM4820IBP-6