Texas Instruments LM4871M/NOPB 3W Audio Power Amplifier IC SOIC-8

Texas Instruments LM4871M/NOPB 3W Audio Power Amplifier IC delivers 3 W of continuous average power into a 3 Ω load from a 5 V supply, with less than 10% THD+N, in a compact SOIC-8 surface-mount package.

The LM4871M/NOPB is a high-performance mono bridged audio power amplifier integrated circuit designed to deliver clear, powerful sound in a compact and efficient package. It is intended for applications where audio quality and power efficiency are important.

Overview

The amplifier uses a Boomer design, which is intended for high-fidelity audio output while requiring minimal external components. It does not require output coupling capacitors, bootstrap capacitors, or snubber networks, which reduces board space requirements and the overall size and weight of the finished product.

Power Saving and Operation

A micropower shutdown mode is included for battery-powered and portable devices. When activated, the typical quiescent current falls to 0.6 µA. The amplifier operates from a supply voltage range of 2.0 V to 5.5 V, suiting a range of portable and low-voltage systems.

Key Features

• Unity gain stable, operating without oscillation at a gain of one
• External gain configuration using external resistors
• Pin compatible with the LM4861
• Thermal shutdown protection to safeguard against overheating
• Green product manufactured with no antimony or bromine (No Sb/Br)

Package and Dimensions

Supplied in a surface-mount SOIC-8 package, this amplifier IC is suited to space-constrained applications. Recorded dimensions are width 3.3, depth 1.5 and height 4.3, with a weight of 0.1 g.

Choose the Texas Instruments LM4871M/NOPB when you need a compact 3 W mono audio power amplifier IC for portable and low-voltage designs.