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How much gate-source voltage should be applied to drive the MOSFET?

The MOSFET turns on when the gate-source voltage higher than the rated gate threshold voltage Vth is applied, as shown in the following figure.
But the drain-source on-state resistance is larger than the rated value when the gate voltage is around the threshold voltage, because the channel is insufficiently formed.
For the voltage applied to the gate, refer to the test condition voltage for drain-source on-state resistance in the datasheet.
When increasing the gate-source voltage VGS, VGS including surge voltage should be within the absolute maximum rating.

For MOSFET’s gate-source voltage, please refer to “MOSFET Gate Drive Circuit:Power MOSFET Application Notes.”

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