LM4871LD/NOPB

Audio Amplifiers Overview

The LM4871LD/NOPB is a single-channel Class-AB audio power amplifier manufactured by Texas Instruments. It operates on a single supply voltage ranging from 2V to 5.5V, with a maximum rating of 5.00V. The device delivers an output power of 2.38W and draws a typical static current of 6.50mA. Designed for surface mount applications, it utilizes an 8-pin WSON package. The operational temperature range spans from -40°C to 85°C.

Audio Amplifiers Feature Summary

• Class-AB topology designed for high-fidelity mono audio amplification
• Integrated micro-power shutdown mode for significant energy conservation in portable devices
• Capacitor-less BTL architecture eliminates the need for external output coupling capacitors
• Built-in thermal shutdown protection ensures device reliability under stress conditions

Audio Amplifiers Applications

• Portable multimedia players requiring low power consumption
• Mobile phones and handheld communication devices
• Personal digital assistants (PDAs) and similar compact electronics
• Battery-operated speaker systems

Audio Amplifiers Procurement Notes

Verify the specific suffix LD against the official datasheet to confirm the WSON-8 package type. Ensure the NOPB designation is present to guarantee compliance with RoHS standards and absence of hazardous substances. Cross-reference the manufacturer date code to confirm active production status and availability within the specified industrial temperature range.

Audio Amplifiers Selection Notes

Select this component when a capacitor-less mono amplifier solution is required for space-constrained designs. It is suitable for applications needing moderate output power with minimal external component count. Consider the WSON-8 footprint constraints and verify that the 2V to 5.5V supply range aligns with the system's battery or power rail specifications.

Audio Amplifiers Part Context

This part belongs to the LM4871 Boomer series of audio amplifiers. The family includes variants such as LM4871MM and LM4871MX, which differ primarily in packaging and pinout configurations. While sharing core electrical characteristics, the LD variant specifically offers the WSON-8 form factor optimized for small board area requirements.

Audio Amplifiers Replacement Considerations

LM4871MM/NOPB: Alternative package option (MSOP-8). LM4871MX/NOPB: Alternative package option (SOIC-8). Verify pin compatibility and thermal performance before substitution.