Quote Originally Posted by Gusse View Post

If PWM source is able to source 10mA @ 5V then it means that internal resistance of source is 500 Ohm (R=U/I).
Therefore you should adjust external components according to this information. Use much smaller serial resistor and remove/increase GND resistor a lot.
The reason I placed a resistor between gate and GND was so that it switched the FET off when not triggered. Would a 100 ohm series resistor, and a 10K resistor between gate and GND be a better option ?