Andy1845c
Active Member
Can someone take a peek at the datasheet for this mosfet and tell me if there is a reason it won't work to drive a small load (leds) directly off the I/O port of a PIC?
http://www.datasheetcatalog.com/datasheets_pdf/I/R/F/5/IRF510.shtml
I'm putting +5v on the gate and just under 9v scourc to drain and trying to light a small LED on a protoboard as a rough draft of a circuit. I can get it to glow dimly and my multimeter only reads a few volts at the LED where I expected to get around my 9 volts.
I have never used MOSFETS before and they are confusing the heck out of me! I have been googling them for a few days, I see some circuits use transistors to drive them, but I thought logic level fets could be driven off I/O ports directly.
Does the current from scource to drain make a differance in how it turns on?
http://www.datasheetcatalog.com/datasheets_pdf/I/R/F/5/IRF510.shtml
I'm putting +5v on the gate and just under 9v scourc to drain and trying to light a small LED on a protoboard as a rough draft of a circuit. I can get it to glow dimly and my multimeter only reads a few volts at the LED where I expected to get around my 9 volts.
I have never used MOSFETS before and they are confusing the heck out of me! I have been googling them for a few days, I see some circuits use transistors to drive them, but I thought logic level fets could be driven off I/O ports directly.
Does the current from scource to drain make a differance in how it turns on?