Specifically designed for Automotive applications, this HEXFET®. Power MOSFET utilizes the latest processing techniques to achieve. IRF Transistor Datasheet, IRF Equivalent, PDF Data Sheets. MOSFET. Parameters and Characteristics. Electronic Component Catalog. IRF Datasheet, IRF MOSFET N-Channel Transistor Datasheet, buy IRF Transistor.

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OK I try again: Good luck, but dont hesitate to ask again shld you need further advice.

IRF Datasheet(PDF) – International Rectifier

However I advise you against building that yourself as they are rather cheap if you just buy them: According to your post and the datasheet, the IRLN should have no problem supplying the current at this voltage, right?

No, create an account now. However it has a very low Rdson. To find out more, including how to control cookies, see here: Thanks Adriaan, Though technically it is a voltage divider, that is not really the function of it.

Using the transistor to drive the gate with higher voltage solved the problem. That 52 mOhms at 2.

Also, if you have the gate floating, the state of the mosfet could be undefined. This site uses cookies. But in reality you dont need that formula as it mainly has to do with the range wherein the FET DrainSource acts as a pure resistor.

I am using this converter: I am not sure what voltage you need but you may try this one a 30n A logic level mosfet means that it is designed to turn on fully from the logic level of a microprocessor. It already switches on at much lower voltages, albeit not completely, but the optimal voltage is around Volt.


Hello — Great post! I have done like you said. I am not sure if there is an easier way to do it. The is somewhat better: Sometimes a MCU seems to be driving a mosfet correctly, but only a careful measurement will show the dataxheet is not getting fully turned on, overheating and wasting power.

IRF1405 MOSFET. Datasheet pdf. Equivalent

Leave datawheet Reply Cancel reply Enter your comment here The datasheet mentioned a current between catasheet Amperes Amperes for driving led. I presume you are aware of the designcriteria of an H-bridge and the chances of shorting your PSU if you dont do the switching correctly.

Do you have any idea why is the mosfet not working properly and letting the 12v works on the led strip? Keep an eye on the temperature though when you start using it with 8 amps.

Great, that is good to know. My questions please – 1 Is the IRF OK for this application or is there another device that would be better suited? The battery is ok and gives a steady 4 volts.

It has a pretty hefty gate charge, so you won’t want to be turning it on and off very frequently. The irf doesnt need 20 Volt tu turn on.

And as i understand when you put 5 volt on the irv1405, the output on the source i presume is only 5Volt. The 2n series, often used with the arduino is dahasheet worse in that aspect, but if used to switch an LED it is OK rdsOn about ohms at 4. I am getting almost 7V at the gate so no issues.


You are limited to a current of about mA. You May Also Like: 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.

It is not a true logic level mosfet, it needs some 10 volts. With regard to 9V and 5V input, I presume you mean supply voltage. I just touched the gate pin to turn motor on. Not sure though what bridge you need. In general you want a MOSFET that has a low Rdson and switches fast at the available triggervoltage 5volt with ttl and ofcourse can take the voltage and current it will be exposed to. Or am I overlooking something? It shows the same behaviour when I use 3.

So the currents you are quoting are with a full supply voltage across the FET for a very short time. The device will be either fully on or off as selected. If Vthresh is given as Yes you can make it Ohm. Two H-Bridge driver will control the power to each motor. Well what an amazing article. Quote of the day. Post was not sent – check your email addresses! Then you can find the current in the datasheet?

They indeed can stand almost 7A, but only when sufficiently on or off.