I want to drive the IRF9530 P-Channel FET with 5V PIC microcontroller. My load is 3.2A. schemtic shows one row in my LED matrix. Scanning @ 1/16th rate, so peak current per LED will be 64mA and the average will be 4mA. When one or two LEDs light up in a row, they are bright. However when more LEDs light up inthe same row, they are dimmer.
- Can the FET can supply require current with the given gate voltage?
- Is there any simple modification to be done within the given hardware, to supply the required current?
I cannot use another driving transistor to drive the FET (because I have a PCB). Also I cannot find logic level MOSFETs in my area.
Minor changes will be preferred.