LME49810TB/NOPB

Audio Amplifiers Overview

The LME49810TB/NOPB is a high-fidelity audio power amplifier driver designed for demanding consumer and professional audio applications. It operates with supply voltages ranging from ±20V to ±100V, delivering scalable output power exceeding 300 watts into an 8-ohm load. Key electrical specifications include a typical slew rate of 50 V/µs, a total harmonic distortion plus noise (THD+N) of 0.0007% at 1kHz, and a minimum output drive current of 60mA. The device features a wide operating temperature range from -40°C to +85°C and utilizes a TO-247 package.

Audio Amplifiers Feature Summary

• Integrates internal Baker Clamp circuitry to prevent transistor saturation during overdrive, ensuring soft clipping behavior.
• Includes thermal shutdown protection that activates when the die temperature exceeds 150°C to prevent damage.
• Features a dedicated mute function controlled by input current to force the amplifier output to a quiescent state.
• Provides customizable external compensation via dedicated pins to optimize stability and slew rate performance.

Audio Amplifiers Applications

• Guitar Amplifiers
• Powered Studio Monitors
• Powered Subwoofers
• Pro Audio Systems
• Audio Video Receivers

Audio Amplifiers Procurement Notes

Verify component authenticity through authorized channels as this part may be subject to obsolescence or lifecycle changes. Confirm RoHS compliance status and specific manufacturing lot dates against the latest Texas Instruments documentation. Ensure proper handling procedures are followed due to limited built-in ESD protection on MOS gates.

Audio Amplifiers Selection Notes

Select this driver for designs requiring high voltage operation and precise control over discrete output stages. Consider the need for external heat sinking to manage thermal dissipation effectively within the specified junction temperature limits. Evaluate the requirement for external biasing components to minimize crossover distortion in Class AB configurations.

Audio Amplifiers Part Context

This component belongs to the LME49810 family of high-performance audio drivers. It serves as a replacement for multiple discrete components in high-power amplifier designs, allowing for reduced board space and simplified engineering workflows compared to traditional discrete solutions.

Audio Amplifiers Replacement Considerations

Consult official Texas Instruments documentation for confirmed substitute part numbers. Verify pin compatibility and electrical specifications before integrating any alternative devices into existing designs.