LM4865MM

Audio Amplifiers Overview

The LM4865MM is a mono Class-D audio power amplifier manufactured by National Semiconductor, now part of Texas Instruments. It operates from a single supply voltage and delivers high efficiency with low total harmonic distortion. The device integrates short-circuit protection and thermal shutdown features to ensure robust operation in portable applications.

Audio Amplifiers Feature Summary

• High-efficiency Class-D architecture for extended battery life
• Integrated short-circuit and thermal protection mechanisms
• Single-supply operation capability

Audio Amplifiers Applications

• Portable media players
• Mobile phones
• Personal digital assistants

Audio Amplifiers Procurement Notes

Verify the manufacturer designation as Texas Instruments due to the acquisition of National Semiconductor. Confirm the package type matches the MM suffix requirements for your PCB layout. Ensure compatibility with the intended supply voltage range before procurement.

Audio Amplifiers Selection Notes

Select this component for mono-channel audio amplification where space and power efficiency are critical constraints. Evaluate the thermal performance under maximum load conditions to ensure adequate heat dissipation within the enclosure design.

Audio Amplifiers Part Context

This model belongs to the LM4865 series of audio amplifiers designed for mobile devices. The MM suffix indicates a specific small-outline package variant suitable for surface-mount assembly processes commonly used in consumer electronics manufacturing.

Audio Amplifiers Replacement Considerations

Consult Texas Instruments documentation for direct pin-compatible alternatives within the LM486x family. Verify electrical specifications match if substituting with other Class-D amplifiers.