Gravity: MOSFET Power Controller

DFRobotSKU: DFR0457
Sale price £3.90
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In most projects, relays are the first choice to drive large current devices. They require a certain amount of current to drive the internal coil to pick up contact. But for some microcontrollers, like the Raspberry Pi and other microcontrollers with a limited current GPIO, it can be hard to drive one or more relays simultaneously.

The MOSFET power controller is a module which can drive a large current device with limited current GPIO. It works as a MOSFET relay or MOSFET driver. When you give it a digital high-level signal (3.3~10V), the MOSFET turns on, and vice versa.

Compared to a relay module, a MOSFET power controller is compatible with Arduino, Raspberry Pi and other microcontrollers, and supports 3.3~10V logic power control. The VIN port supports 5~36V; 0~20A power input, if the current is over 10A we recommend an external heat sink. The MOSFET module also supports a quick ON-OFF switch, the switching frequency arrives at 1KHz. That's a good point for robot control!

The MOSFET power controller comes with a standard PH2.0 3-pin Gravity interface. It makes the module compatible with the Arduino IO expansion shield.

Note: works with direct current (DC) only!

Connection Example - Arduino


  • VIN Operating Voltage: 5V-36V DC
  • VIN Operating Current: 0A-20A (external heat sink required when the current is over 10A)
  • Logic Operating Voltage: 3.3~10V DC
  • Logic Control Signal: 3.3~10V DC
  • Switching Frequency: 0-1KHz
  • Switching Character: T(on)=20us/T(off)=50us
  • Operating Temperature: -55℃-155℃
  • Interface Type: PH2.0 3-pin
  • Dimension: 44 x 32 mm



Num Name Description
1 VIN Power Input (DC:5~36V)
3 VOUT Power Output
4 PH2.0 3-pin Gravity Interface

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