LM4889MA/NOPB

Audio Amplifiers Overview

The LM4889MA/NOPB is a single-channel mono Class-AB audio power amplifier manufactured by Texas Instruments. It delivers 1 watt of output power into an 8-ohm load with a total harmonic distortion plus noise of 0.1 percent. The device operates on a single power supply ranging from 2.2 volts to 5.5 volts. It utilizes an analog input and provides differential output. The component is housed in an 8-SOIC package, supports surface-mount installation, and functions within a temperature range of -40 degrees Celsius to +85 degrees Celsius.

Audio Amplifiers Feature Summary

• Delivers high-fidelity audio amplification with low distortion characteristics for clear sound reproduction.
• Operates efficiently using a single power supply voltage source without requiring complex biasing circuits.
• Features a compact surface-mount package design suitable for space-constrained electronic layouts.

Audio Amplifiers Applications

• Portable consumer audio devices requiring single-supply operation
• Low-power speaker driver circuits in embedded systems
• Mono audio signal amplification in industrial control panels

Audio Amplifiers Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to ensure correct package type and thermal rating. Confirm RoHS compliance status through current datasheets as specifications may evolve. Cross-reference the National Semiconductor legacy branding with Texas Instruments product lines to validate part authenticity and availability channels before finalizing procurement orders.

Audio Amplifiers Selection Notes

Select this component when a single-channel mono amplifier is required for driving low-impedance loads up to 8 ohms. Ensure the application environment stays within the specified operating temperature limits. Verify that the available single supply voltage falls between the minimum and maximum operational thresholds defined in the electrical characteristics table.

Audio Amplifiers Part Context

This part belongs to the LM4889 series of audio amplifiers produced by Texas Instruments, formerly National Semiconductor. The series focuses on delivering moderate power output in small form factors. The MA suffix typically denotes a specific tape-and-reel or tube packaging variant within the SOIC-8 family, distinguishing it from other pin-compatible options like the MM or MAX variants.

Audio Amplifiers Replacement Considerations

LM4889MAX/NOPB

Audio Amplifiers FAQ

What is the maximum power supply voltage allowed for this amplifier?

The maximum recommended power supply voltage is 5.5 volts.

Does this device support stereo output configurations?

No, the LM4889MA/NOPB is designed as a single-channel mono amplifier.