IRL 55V Single N-channel HexFET Power MOSFET in a TOAB Package. Logic-Level Gate Drive Advanced Process Technology Ultra Low. Infineon IRL MOSFET are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for Infineon IRL MOSFET. IRL Overview. Buy online. Data Sheet – IRLEN. | pdf | KB. 55V Single N-Channel HEXFET Power MOSFET in a TOAB package.

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No, I don’t answer questions sent in private messages but I do accept thank-you notes Previously i read this topic http: Using a small value R in the gate ckt is usually a good idea. Whether that happens at the Rds on measurement point is another question!

MarkT Brattain Member Posts: How is better or correct? Is that kind of understanding correct?

IRLs are inexpensive, but will have a larger Rds on than the newer, more expensive parts. I wouldn’t expect to be able to run them at their 12 amp max rating without some serious heatsinking, but for up to a couple of amps or so you can’t beat irl25505 20 cent each cost. Avoid this confusion by using “on” and “off”!

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Thank you for quick response. Can you suggest some cheaper and widely used alternative? If you need fast PWM though you’ll need a MOSFET driver chip to boost the current to the gate otherwise the capacitance limits the speed of switching leading to large switching losses – PWM at 10kHz ideally wants switching times to be sub-microsecond, for instance, to keep switching losses sensible.


If i am running it from Arduino igl2505 should be datasheft open at 5V. Ok, i think i understand it now. If i am planning to drive iro2505 motor with mA current consumption with this fet, i can understand this informations that way: FET’s do become “fully on”, generally Rds on is just the parasitic resistance of the contacts and bulk silicon.

And how to calculate or which data should i look to know at which voltage is FET fully open?

IRL Data Sheet ( KB, EN)

Up till now i used IRL but is quite expensive and i can’t get them from our local electro shop i had to order them from Farnell. Voltage on gate change resistance of FET but it’s never zero.

Hello, i am looking for some widely used FET which is fully open at 5V. Datasheey is man’s best friend?

Good to also have a large value R between the gate and gnd to hold the Mosfet off in case the input is floating. Generally a datashdet gate resistor will protect the Arduino pin when connected to a high current MOSFET they can have many nF of gate capacitance, the resistor means the current rating for the Arduino pin won’t be exceeded during switching.


How can i calculate maximum PWM frequency for stable running?

This is confusing if you are new – its the opposite from taps and valves used for fluids! If it is near to zero that’s mean that it is turned ON, if i can say it that way. Always ignore Vthr in datasheets for switching dqtasheet, its of no use and causes a lot of confusion Shouldn’t matter, if the currents aren’t too high.

V ds – drain to source means maximum voltage for supplying motor idl2505 example V gs – gate to source means maximum voltage for driving FET Is that correct? Higher voltage means lover resistance. You might be interested in an ebay offering that another forum member found recently, but the sellers seems to be running low, only 4 more sets of 10 available. If i would control them with microcontroller it should be fully open if i use “digitalWrite HIGH” function.