Е Uses IRF data and test conditions. Source-Drain Ratings and Characteristics. Parameter. Min. Typ. Max. Units. Conditions. V(BR)DSS. IRF Product Description; Technical information. General. Type; Power MOSFET. Design; MOSFETs. Technology; P-CH. Housing; TO Mounting form. IRF Transistor Datasheet, IRF Equivalent, PDF Data Sheets. MOSFET. Parameters and Characteristics. Electronic Component Catalog.
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Jrf Vgs th of irf say -2 to -4 volts it means that to turn on the mosfet gate voltage must be below 10 volts right?
JohnLincoln God Member Posts: I live in Lincoln. The output of an Arduino digital pin can be 0V, or 5V.
Both are below 10V. JohnLincoln on Apr 08,55210 Southpark on Apr 08, Southpark Edison Member Posts: Wawa Shannon Member Posts: It means that the gate should stay within 20volt of the source. If the source of a P-channel fet is at 25volt supplyyou can’t just ground the gate.
There are solutions though. Read this page a few times. Southpark on Apr idf, Are you using an Arduino to drive that mosfet in place of the switch on your diagram or has this nothing to do with Arduino?
If you are driving a P channel mosfet from an Arduino pin and the mosfet is powered by a 12 volt supply, you need to make a level shifter composed of a pull up resistor for the mosfet, and an npn transistor with base resistor.
TomGeorge Design and Repair of industrial control systems.
Hi, I presume you are high side switching is because the relay is automotive 12V system and connected to gnd. Be aware that 12V auto systems can get to Everything runs on smoke, let the smoke out, it stops running