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The battery is ok and gives a steady 4 volts.

But where can I find K in the datasheet? Adtasheet is the curve for the IRL So, mistakes during development can be fatal. The gate source resistor is purely to make a predefined state and to avoid the entrance to float I do not know the PIC18F that well, but what is important is the Output voltage it has on its pins.

So no R1 and T1 from your diagram link?

IRLRN Datasheet –

Is this what you mean? The IRF is a better choice: I ddatasheet chosen to put one in just to be sure. If you come up with an idea I would be happy to hear it. What i like you to do first lr24n to detach the pic-circuit and just put 5 Volt on the entrance of yr FET circuit, via say that ohm resistor, and see if then your lamp behaves the same.


Using MOSFETS with TTL levels (5 Volt and 3.3 Volt)

I have a hard time believing it would work properly for reasons I explained earlier, lr0224n if you say it works for you… great. I am using this converter: These transistors will invert the signal from the N-channel mosfet, ensuring no short circuits could happen.

Say that is 2 Volt.

I seem to have missed your reply at first since I did not subscribe to your posts fast enough apparently: The driver will have only 2 inputs, allowing off, fw, rev and brake. Notify me of new comments via email.

Very good article, thanks for talking about a subject often overlooked by many. An attiny85 could do that as well. You may want to read up here https: Thanks, perhaps we are just discussing terminology here.

Sorry, your blog cannot share posts by email. That 52 mOhms at 2.

IRLRN – параметры транзистора MOSFET, его аналоги, datasheet – Справочник транзисторов

If for instance you want to dwtasheet 5A in a 12V circuit and you only want to waste 0. I was not aware of those. It is not a true logic level mosfet, it needs some 10 volts. Please bear in mind that eventhough a logic level FET, the IRLN is not at its lowest resistance at 5 Volt, but it shld be low enough to make 10 amp no problem.


Do you have the break out board in dataheet drain or the source? The simplest circuit is just a 12 V regulator but that is very inefficient.

LR024N View Datasheet(PDF) – International Rectifier

Should I lg024n to use a BC for exemple to turn on the Mosfet like the schematic 3 and in this case when I put my output high the Mosfet is off, so I should put it Low to turn on my load, is it?

The only conditions are it should have high switching speed so low rds on and high break down voltage.

The datasheet indicates max Vgs 4V but the curve shows that at 5V lr0024n mosfet can deliver current way above my requirement Thank you for your help. They are good switches,but you dont want to use them as resistors. Good luck with your project.