Notification 658 - Wrong SR FET Selection 

CATEGORY

ISSUE / RESULT

FIX / REFERENCE(S)

Warning

The voltage rating of the selected SR MOSFET is inadequate, and/or the gate-source threshold voltage of the selected SR MOSFET is above or unacceptably close to the gate drive pulse amplitude.  The selected MOSFET may not turn-on, or its gate may not be sufficiently driven.

  • Select SR MOSFET with VDS ≥ 1.2 times the peak inverse voltage stress.

  • Select SR MOSFET with VGSth ≤ 3.5V.