LM4866MTE/NOPB

Audio Amplifiers Overview

The LM4866MTE/NOPB is a stereo audio amplifier manufactured by Texas Instruments, operating in Class-AB architecture. It features analog input and supports an analog supply voltage range from 2V to 5.5V. The device delivers up to 2.2W of output power with a total harmonic distortion plus noise (THD+N) of 0.3% at 1kHz. It is designed for loads with a minimum impedance of 3Ω. The component operates within a temperature range of -40°C to +85°C and is housed in an HTSSOP-20 package.

Audio Amplifiers Feature Summary

• Stereo audio amplification using Class-AB topology
• Analog input interface with GPIO control
• Wide single-supply voltage operation capability

Audio Amplifiers Applications

• Portable multimedia devices requiring stereo sound
• Desktop speakers and small audio systems
• Consumer electronics with limited power supply constraints

Audio Amplifiers Procurement Notes

Verify the manufacturer designation as Texas Instruments, which acquired National Semiconductor's semiconductor business. Confirm the specific suffix 'NOPB' indicates lead-free and RoHS compliance. Ensure the package type matches the required HTSSOP-20 footprint for PCB layout compatibility. Cross-reference the datasheet revision to confirm electrical characteristics align with current design requirements.

Audio Amplifiers Selection Notes

Select this component for applications requiring moderate power output in a stereo configuration without digital interfaces. Consider the Class-AB efficiency trade-offs compared to Class-D alternatives if battery life is critical. Verify that the thermal performance in the HTSSOP-20 package meets the system's heat dissipation needs under maximum load conditions.

Audio Amplifiers Part Context

This part belongs to the LM4866 series of audio amplifiers. It is functionally related to variants such as LM4866MTEX/NOPB, which differs primarily in packaging format. The series is designed for general-purpose audio amplification tasks in consumer electronics, offering a balance between sound quality and power consumption.

Audio Amplifiers Replacement Considerations

LM4866MTEX/NOPB serves as a direct alternative with identical electrical specifications but utilizes a reel packaging format instead of tubes.