Just caught the first half of this. My control pin is completely open as i was under the impression this would give 5v with no resistance value. Do i need to ground the control pin for it to work right?
quick mosfet question
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Just caught the first half of this. My control pin is completely open as i was under the impression this would give 5v with no resistance value. Do i need to ground the control pin for it to work right?
If left open it should give you 5 volts. At least thats what the data sheet says " VO Adjust Pin #3 = If left open-circuit, the output voltage will default to its minimum adjust value "
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vaping like a champ but still not right. Think i may have a problem with my mosfet not passing full current.
batt v. No load:4.1
Batt v. With 2.0 ohm atty:3.8
V.in to mosfet same load:: 3.78
V.out from mosfet 3.12
Is my mosfet fried?
Atty connector shows 4.99v no load but drops below battery voltage with load.
batt v. No load:4.1
Batt v. With 2.0 ohm atty:3.8
V.in to mosfet same load:: 3.78
V.out from mosfet 3.12
Is my mosfet fried?
Atty connector shows 4.99v no load but drops below battery voltage with load.
What value resistor are you using from gate to source? To low a resistance and you wont fully saturate the mosfet. Also what Mosfet did you end up using?
Will double check the resistance. Guess that could explain the switch being a little slow to react turning off too.
Dummy me. Only had 10k resistor so in my infinite wisdom i put two together thinking that would be 20k. However they were soldered parallel not in series.
Will try a 47k later.
Will try a 47k later.
Isn't a mosfet a bad choice for a battery mod since you will loose 0.7 volts going trough the silicon in the transistor. that would explain your 3.2V vout pin ?
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