LM4910MA/NOPB

Audio Amplifiers Overview

The LM4910MA/NOPB is a stereo Class-AB audio amplifier manufactured by Texas Instruments, designed specifically for driving headphone loads. It delivers 35mW of output power per channel and operates on a single supply voltage ranging from 2.2V to 5.5V. The device features an output capacitor-less architecture, which minimizes external component requirements. Key electrical specifications include a total harmonic distortion plus noise (THD+N) of 0.3% and a quiescent current of 3.5mA. It functions within a temperature range of -40°C to +85°C and is housed in an 8-pin VSSOP package.

Audio Amplifiers Feature Summary

• Output capacitor-less design eliminates the need for large coupling capacitors
• Single-supply operation compatible with low-voltage portable systems
• Integrated thermal protection safeguards against overheating

Audio Amplifiers Applications

• Stereo headphone amplification in mobile devices
• Portable media players requiring low-power audio solutions
• Battery-operated consumer electronics with space constraints

Audio Amplifiers Procurement Notes

Verify the specific suffix 'MA' against official Texas Instruments documentation to confirm the exact package type and tape-and-reel configuration. Ensure compatibility with the target PCB footprint for the 8-VSSOP package. Confirm that the operating voltage range aligns with the system's power supply rails before integration.

Audio Amplifiers Selection Notes

Select this component for applications requiring a compact, low-power stereo solution without output capacitors. It is suitable for designs where board space is limited and battery life is critical. Consider the 35mW output limit when matching impedance and volume requirements for the intended headphones.

Audio Amplifiers Part Context

This part belongs to the LM4910 family of audio amplifiers from Texas Instruments. The family includes variants such as LM4910LQ and LM4910MM, which share similar functional characteristics but differ in package types like WQFN or VSSOP. These components are part of the broader Boomer audio amplifier series designed for portable electronics.

Audio Amplifiers Replacement Considerations

Direct substitutes within the same family include LM4910LQ-NOPB and LM4910MM-NOPB. Verify pinout compatibility and package dimensions before substitution. Other TI models like LM4911 offer higher power but may require different circuit adjustments.