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I even used feedback protective diode with motor.

You may also consider the IRLZ I am not sure where you are based but the IRL costs abt 60 cts where I am. Thank you for this very good explanation. If you feed it with 15Volt the output lr02n4 is around volt which will do the job. Well, you would need to put an inverter before the circuit i provided, either by a logical gate or with yet another transistor.

The fatasheet capacitance is best chosen as low as possible. Is it possible to use two or maybe three IRF to handle more amperage?

200pcs IRLR024NTRPBF IRLR024NTRPBF LR024N Manu: IR Packaeg: TO-252 HEXFET Power MOSFET

If you are using this circuit to switch any serious loads, then it is wise to solder some thick wire over dztasheet tracks coming from the MOSFET.

More and more cheap Mosfets. Also, if you have the gate floating, the state of the mosfet could be undefined. I am actually using it with octocoupler connected to 12V.

I presume you are aware lr024nn the designcriteria of an H-bridge and the chances datasbeet shorting your PSU if you dont do the switching correctly. So no R1 and T1 from your diagram link? OK I try again: That means you have to have a 12 Volt driver as in datasueet circuit: Fill in your details below or click an icon to log in: Good luck, but dont hesitate to ask again shld you need further advice.


See the reference below: I am not sure what voltage you need but you may try this one a 30n But where can I find K in the datasheet? It is not expensive: Every time I tried with new IRF, but any of them worked only for first time.

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

Hello — Great post! The STP3NA I do not know very well and I couldnt quickly find a readable datasheet, but though it doesnt seem to be a Logic level FET, from what I could see, it should open enough around 3 volt already… but if you have a better datasheet, please check that. What kind of lamp is it? Thanks — You are correct. Thanks in advance, Ruben. The datasheet indicates max Vgs 4V but the curve shows that at 5V the mosfet can deliver current way above my requirement.

I want to put around 10A of current trough a coil to make a partical accelerator. Notify me of new comments via email. At 5V volt on the gate, the IRF will pass something around 4. Good luck with your project.

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

But to be sure i had a question. Thanks very much for your time. What type of step up converter are you using?

Some people however have trouble reading a datasheet or do not know what to look for and in that case foing with TTL level FETs lr0024n a safe option. If for instance you want to switch 5A in a 12V circuit and you only want to waste 0. But then again, if bought at the right place.

Would be interested to hear how the FET holds out on 8 Amps. However I advise you against building that yourself as they datasneet rather cheap if you just buy them: Rds 38mOhm with a Vgs of 3.

If it does open at 3 volt and your PIC supplies that, adding a transistor is not really necesary and if you do it doesnt need to le024n the BC, can be a regular signal transistor too, like the Try just to test without the converter, 3.


As there is an LED in the source to ground i lr024jthere is already a voltage drop, keeping the source above ground. A logic level mosfet means that it is designed to turn on fully from the logic level of a microprocessor.

Keep an eye on the temperature though when you start using it with 8 amps.

I just touched the gate pin to turn motor on. I would like to use it to switch car heated seat 12V, 8A. The question is the one joe provided a solution to in an earlier question, except just as you pointed out, his solution doesnt work because the emitter voltage will be close to 12V and the base voltage from the arduino will be 5V so the transistor will close.

Sometimes a MCU seems to be driving a mosfet correctly, but only a careful measurement will show the mosfet is not getting fully turned on, overheating and wasting power. Learn how your comment data is processed. I have chosen to put one in just to be sure. 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 the mosfet can deliver current way above my requirement Thank you for your help.

Would like to have a non inverting driver, do you have any recommendation how to solve this, or best IC driver for arduino. I just need to switch on and off small DC motor.