The LM4810MM is a Boomer® series audio power amplifier from National Semiconductor (now Texas Instruments). It's designed to deliver high-quality audio to stereo headphones, speakers, or other audio output devices.

Applications

• Headphone Amplifiers: Used in headphone amplifiers for portable audio devices.
• Portable Speakers: Suitable for small portable speakers.
• Laptop Computers: Integrated into laptop computers for audio output.
• Mobile Phones: Used in mobile phones for audio amplification.

Features

• Stereo Audio Amplifier: Provides stereo audio amplification for two channels.
• Low Total Harmonic Distortion (THD): Delivers high-quality audio with low distortion.
• Shutdown Mode: Features a shutdown mode to conserve power when not in use.
• Short-Circuit Protection: Includes short-circuit protection to prevent damage from shorted outputs.
• Thermal Shutdown Protection: Incorporates thermal shutdown protection to prevent overheating.

Benefits

• High-Quality Audio: Delivers high-quality audio with low distortion.
• Power Efficiency: Designed for power efficiency, extending battery life in portable devices.
• Protection Features: Built-in protection features ensure reliable operation.
• Small Size: Available in a small package size for space-constrained applications.

Additional Details

The LM4810MM typically operates on a 3V to 5.5V power supply. It can deliver several milliwatts of power per channel into a typical headphone load (e.g., 32 ohms). The amplifier's gain can be adjusted using external resistors. The device's shutdown mode reduces power consumption to a very low level when the amplifier is not needed. The LM4810MM integrates volume control functionality, allowing for easy adjustment of the audio output level. It is available in a small MSOP (Mini Small Outline Package) package. The amplifier's input impedance is typically high, allowing it to be driven by a variety of audio sources. The LM4810MM is commonly used in conjunction with headphone jacks and volume control potentiometers.