MOSFET Driver Module(IRF520)

The IRF520 MOSFET Driver Module is a module that can be controlled with a PWM signal. It requires a heatsink for currents above 1A.

Specifications

• Operating Voltage: 3.3V ~ 5V
• Input/Output Voltage: 0V ~ 24V
• Input/Output Current: ~5A (Heatsink required for currents above 1A)

Example Required Hardware

• Arduino board
• Jumper cables
• MOSFET module
• DC motor
• 4.5V power supply (AA batteries x3)

Connection

This example demonstrates motor speed control using the MOSFET module. The motor's rotation direction is not considered in this test (connect the motor to the MOSFET module's V+ and V-).

Arduino	Motor	MOSFET Module	4.5V Power Supply
D5		SIG
5V		VCC
GND		GND
		VIN	+
		GND	-
	Connect	V+
	Connect	V-

Example Code

The example gradually decreases the motor speed until it stops, then repeats the process.

int mosfetSignal = 5;
int val = 0;
int interval = 51;
void setup() {
  analogWrite(mosfetSignal, val);
  val = 255;
  delay(3000);
}

void loop() {
  for (int i = 0; i < 6; i++) {
    analogWrite(mosfetSignal, val);
    val -= interval;
    delay(3000);
  }
  val = 255;
}