LM3886 Minimus Power Gainclone
LM3886 Minimus Power Gainclone

Gainclone is a aircuit compact audio power amplifier using integrated circuit National Semiconductors LM6886TF, PCB compact, making it ideal for use where you need a compact amplifier with high power and high quality audio.
Ideal for use in various applications such as, computer games, Mp3 Player, Home Theater, Surround sound, etc.

About the amplifier circuit with LM3886 – Minimus Power

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LM3886 is a single-channel, high-performance audio power amplifier IC produced by National Semiconductor (NS) company  , the maximum continuous output power up to 60W, from the launched time to now, was loved by the majority of audiophiles.

The single-channel power amplifier design, a board per channel amplifier parts, amplifier board can be used in parallel.
Recommend DC dual 20-28V power supply.

  • 68W output power into 4Ω at VCC=±28V
  • 38W output power into 8Ω at VCC=±28V
  • 50W output power into 8Ω at VCC=±35V

Schematic LM3886 Minimus Power Gainclone

LM3886 Minimus Power Gainclone schematic
LM3886 Minimus Power Gainclone schematic

Suggested PCB for power amplifier LM 3886

LM3886 Minimus Power Gainclone PCB
LM3886 Minimus Power Gainclone PCB bottom
LM3886 Minimus Power Gainclone PCB top
LM3886 Minimus Power Gainclone PCB top
LM3886 Minimus Power Gainclone PCB top layout
LM3886 Minimus Power Gainclone PCB top layout
LM3886 Minimus Power Gainclone PCB top
LM3886 Minimus Power Gainclone PCB top silk

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Part List to assemble amplifier Minimus Power

PartValue
Resistors 1/4 W* 5%
R1*0.1 Ohms/5 Watts Ceramic resistor
R2, R3, R522k – Red, Red, Orange, Gold
R4, R61k – Brown, Black, Red, Gold
Capacitor’s
C1, C2, C3100µF/63V Electrolytic Capacitor
C422µF/63V Electrolytic Capacitor
C51µF /100V- capacitor polyester
Semiconductors
IC1LM3886 – Audio amplifier integrated circuit
Connectors
INAudio input connector
OUTAudio output connector
PWConnector for power supply
Miscellaneous
Welding, Wire, PCB, Box, Symmetrical power supply 18-42 Volts / 3 Amps, etc.

Download PDF Files for Gainclone – Datasheet LM3886, PCB top Side, PCB Bottom side, Lm3886 Schematic.
Download PDF Mirror

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3 COMMENTS

  1. On this PCB layout we cant can’t make a circuit , those white line should be black and back should be white and many mistake are der in the board

  2. TONI are you sure 1µF – capacitor polyester will work for this , according to me lm3886 support Mkt 2.2uf or 1 uf Audio capacitor like Dayton . Polyester may not work . I tried it work working

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