In this 100W power amplifier circuit, the two of LM3886 are paralled to gain more powerful amplifier output. This amplifier can deliver about 50W into a 8-ohm speaker and 100W into a 4-ohm speaker. To make a stereo amplifier, there are should be use 4 pieces of LM3886.

The LM3886 is a high-performance audio power amplifier capable of delivering 68W of continuous average power to a 4O load and 38W into with 0.1% THD+N from 20Hz?20kHz. It can be used for general purpose application such as Component stereo, Compact stereo, Self-powered speakers, Surround-sound amplifiers, High-end stereo TVs etc.

The documentation of this 100W amp project: http://www.shine7.com/audio/pa100.htm
Visit the page to get information about schematic diagram, PCB layout and construction information.

Download the LM3886 datasheet for circuit reference from below link:

LM3886 Datasheet

1 file(s) 1.15 MB

Download Datasheet