The maximum operating temperature range for the IRF9640 is -55°C to 175°C.
To ensure the IRF9640 is fully turned on, apply a gate-source voltage (Vgs) of at least 10V for a logic-level gate drive, or 15V for a standard gate drive.
The maximum current rating for the IRF9640 is 23A continuous drain current, and 46A peak drain current.
To protect the IRF9640 from overvoltage, use a voltage clamp or a zener diode to limit the maximum voltage to 200V, which is the absolute maximum rating.
The recommended gate resistor value for the IRF9640 is between 10Ω to 100Ω, depending on the specific application and switching frequency.
IRF9640 datasheet
by Vishay Siliconix
