TLP281 4-Channel Optocoupler Isolation Module

This TLP281 4-Channel Optocoupler Isolation Module is helpful for connecting digital systems (like a 5V microcontroller) to a high-voltage or a noisy system. This board electrically isolates a controller from the high-power system by use of an opto-isolator IC. This IC has four LEDs and four photodiodes built-in. This board will isolate the systems, creating a type of electrical noise barrier between devices and this board uses the TLP281 optoisolator and discrete transistors to correct the logic. This board can be used in heavy- noise environments like motor driving application to isolate the signal between the driver and the microcontroller.Maximum voltage is 24V.

Input and Output Instruction:

Input : IN1 / IN2 / IN3 / IN4, then the microcontroller or Arduino IO port, GND and the Arduino development board connected to the GND. IN1 / IN2 / IN3 / IN4 controls OUT1 / OUT2 / OUT3 / OUT4, respectively.
Output: OUT1 / OUT2 / OUT3 / OUT4
Output: HVCC: Connect the controlled high voltage positive, HGND connected to the controlled high voltage negative
Use : When IN1 is high, the corresponding OUT1 voltage is equal to HVCC, when IN1 is low, the OUT1 voltage is equal to HGND.