When “overdriving” the Qorvo SiC JFET gate to minimize on-resistance, how much current should I allow to flow into the gate?
1 mA is sufficient to forward bias the gate. However, using the JFET gate-source diode for sensing the JFET chip temperature is easier with more current, in the range of 5 to 10 mA.
Gate current range for overdriving is explained in more detail in two application notes:
JFET Primer
JFET User Guide