Ladies and Gents,
I am attempting to build some sort of switch that is controlled by an I/O 0-5 V digital pin on a 18series PIC. The PIC im sure can only drive about 15mA of current soooo....
I am wondering what is the best way to drive a Pump whose input voltage is 12V and draws 3.5Amps. My current idea is to wire the output pin of the pic into the gate of a MOSFET with the Pump connected between the 12V supply and the Drain or the FET, and connect the FET source terminal to ground. Maybe put a protection diode (Schotkey??) across the leads of the Pump to save the transistor when switching.... Will this be sufficient?? the 12V supply is system voltage of an automobile. Are there better ideas, and will a MOSFET be able to handle 3.5 AMPS?? Thanks for looking
I am attempting to build some sort of switch that is controlled by an I/O 0-5 V digital pin on a 18series PIC. The PIC im sure can only drive about 15mA of current soooo....
I am wondering what is the best way to drive a Pump whose input voltage is 12V and draws 3.5Amps. My current idea is to wire the output pin of the pic into the gate of a MOSFET with the Pump connected between the 12V supply and the Drain or the FET, and connect the FET source terminal to ground. Maybe put a protection diode (Schotkey??) across the leads of the Pump to save the transistor when switching.... Will this be sufficient?? the 12V supply is system voltage of an automobile. Are there better ideas, and will a MOSFET be able to handle 3.5 AMPS?? Thanks for looking