Please note this listing is for a PCB only,
NO components are included.
Here we have a great quality double-sided PCB on which you can build an LM3886 based mono power amplifier.
USING THIS BOARD YOU CAN CONNECT 4x LM3886 ICS IN BRIDGE/PARALLEL CONFIGURATION GIVING YOU A
POWER OUTPUT OF OVER 200 WATTS! THIS CONFIGURATION IS FULLY ENDORSED BY TEXAS INSTRUMENTS.
The board is fully marked out for all resistor/capacitor values etc.
Perfect for use with our active crossover filter boards!
INSTRUCTIONS ARE SUPPLIED IN ENGLISH.
The board was designed in the UK by KMTech Design.
The LM3886 is a truly amazing amplifier IC, capable of delivering up to 68W, with extremely low THD and sporting many advanced features such as under/over voltage protection, thermal protection etc. This board multiplies these advantages by up to a factor of four!
Board dimensions: W 120mm H 50mm.
You will need the following low-cost components to build this amplifier:
4x LM3886 amplifier IC.
4x 0.1R 5W 1% metal film resistor.
4x 4.7u 50V electrolytic capacitor.
1x 3.3uF 50V electrolytic capacitor.
3x 100uF 50V electrolytic capacitor.
2x 20.5k 0.1% metal film resistor.
2x 21.5k 0.1% metal film resistor.
6x 1k 0.1% metal film resistor.
1x 8.2k 0.1% metal film resistor.
1x 10k 1% metal film resistor.
1x 3-way 5mm terminal block.
1x 2-way 5mm terminal block.
1x PCB mounted RCA socket.
You will need to attach a heat sink as the LM3886 is a powerful chip and dissipates a lot of heat. Please note when attaching the heatsink, the LM3886 backplate is at V-.
Obviously you will also need a way of powering the amp up. You are strongly advised to download and read the BPA200 datasheet (AN-1192 Overture™ Series High Power Solutions) as the supply voltage varies depending on the speaker impedance:
You will need a minimum of dual-polarity 365VA transformer and suitable dual-polarity ac-dc board per channel.
You will need access to a soldering iron.
The datasheets for the LM3886 IC and BPA200 (bridge/parallel) configuration can be found very easy by Google search.
IMPORTANT - INSTALLATION BY QUALIFIED PERSONS ONLY AS MAINS ELECTRICITY IS INVOLVED.
Check my other items for 2 and 3 way active filters, audio power supplies plus lots more.
Thanks for looking!
Please note this listing is for a PCB only, no components are included.