I have a rfp30n06le (N channel MOSFET) that I'm trying to power a brushed motor with.
- The source is connected to ground of a 1 cell lipo battery.
- The drain is connected to the negative side of the motor.
- The gate is connected to a 3.3v pin of a microcontroller.
- The battery is reading 4.04v
- The +bat to drain is reading 4.04v also
When I hook the motor up to the positive end of the battery, the bat+ to drain reads 0v, and the motor doesn't do anything.
When I change the gate voltage to the 4.04v from the battery, the motor starts turning slowly, and the bat+ to drain reads 1.5v.
It seems as if the MOSFET isn't allowing much current through, but increasing the voltage allowed more current to flow. This makes me think that the gate to source voltage needs to be higher for the MOSFET to allow enough current to go through.
Am I reading the data sheet wrong? shouldn't I be able to use this MOSFET with a gate-source voltage of 3.3v?
rfp30n06le datasheet https://www.sparkfun.com/datasheets/Components/General/RFP30N06LE.pdf