Attached is my circuit.
1. MCU takes one input(J3, voltage), do some processing & then turn P1.7 high or low. When P1.7 is high, it gives high to comparator, which in turn on the FDS6690A, & turn off if p1.7 is low.
2. Can I turn on/off mosfet FDS6690A directly by MSP430(3.3V)? Datasheet says VGSmax = 3V, when VDS=VGS & IDS = 250uA.
In my case max Vds will be 16.8V & max current will be around 7A.
If yes, then I can remove comparator.