GPIO Pin Vs. SIO Pin - Driving a power MOSFET | Cypress Semiconductor
GPIO Pin Vs. SIO Pin - Driving a power MOSFET
I have been trying to drive an external power MOSFET (IRFD113 - N Channel) with the PSoC 3 at ~20 kHz. The GPIO pin appears not to have enough drive strength to switch the FET with acceptable rise/fall times. I was thinking that the SIO pins might help with their improved current sinking capabilities (20mA vs. 4mA). Does anyone have any suggestions on how I might go about doing this? Could I parallel pins for improved drive strength?
P.S. I am aware of external MOSFET gate driver ICs. I would love to see a clever PSoC only solution though!