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4 Channel Optocoupler TLP281 IC Breakout Board

by Velleman

This breakout board allows you to connect a digital system (like a 5 V microcontroller) to a high-voltage or noisy system.

It uses the TLP281 opto-isolator IC to electrically isolate your controller from the high-voltage system by using the four build-in LEDs and photodiodes.

The TLP281 IC is often used with a microcontroller to control servos or other motors that use a higher voltage than the TTL logic on a 3.3V or 5V development board.

This breakout board allows up to 4 channels to be controlled. Simply connect your microcontroller to the 4 IN pins and supply the board with maximum 5VDC to the NC pin. The high-voltage system is connected with the HVCC & HGND pins and the OUT pins.


  • max Vin: 5 VDC
  • max HVCC: 24 VDC
  • max. output current: 500 mA per output
  • optocoupler: TLP281
  • dimensions: 25 x 26 mm (0.99 x 1.02")


Info Sheets