However, the IRFZ44N is widely and readily available from many electronics shops including places such as eBay on wholesale. Once more I'm operating devices outside their spec and had the board working by pure luck. This must work the threshold voltages are the same. The tester discharges two cells independently thus it has two independent instances of the above circuit. I have other 5 Z46's behaving the same in another board I was building a 6-cell discharger when this happened.
|Date Added:||14 August 2017|
|File Size:||54.29 Mb|
|Operating Systems:||Windows NT/2000/XP/2003/2003/7/8/10 MacOS 10/X|
|Price:||Free* [*Free Regsitration Required]|
You can suspect issues with the gate driving circuit. Home Questions Tags Users Unanswered. A MOSFET is a voltage-controlled device, which means that the gate requires a positive voltage for it to conduct and switch on.
I have other 5 Z46's behaving the same in another board I was building a 6-cell discharger orfz44n this happened.
IRFZ44N - Infineon Technologies
They are available on Google for wholesale as well. The tester discharges two cells independently thus it has two independent instances of the above circuit. Sign up using Email and Password.
You should not have measured the battery voltage on the gate. Once more I'm operating devices outside their spec and had the board working by pure luck.
Does it turn on with 10V Vgs? Thanks for your answer.
The datasheet for irfz46N states: They both have 2 to 4V threshold voltage Vgs-thso they probably fully turn on at higher than 5V maybe 9 or 10V?
Many GCSE students tend to trip up on that one. When a voltage is applied, the charge remains at the junction for a long time keeping the transistor in a conducting state.
IRFZ44N MOSFET. Datasheet pdf. Equivalent
Are you sure the Z46 is not damaged? It can control a DC fan, without the need for a relay. I measured the voltage between source and drain but made a mistake when I posted the question. Tested my setup with a new batch of Z44N's and they didn't irvz44n on either, just like the Z46N's.
These transistors are relatively inexpensive and are usually for sale at Farnell and eBay. Electrons are negative and move from the negative rail to the positive rail. Its drain to source voltage is about 15mV when on and the rest of the battery voltage is across on R8 as intended. Sign up using Facebook. The centre pin is drain, the left pin is gate, the right pin is source, irfz44m the metal tab is drain.
The load can be almost any kind of irfz44b, from car headlights to fan control. I should have picked one with 1V Vgs-th, but I'm now curious: It can also be utilised in an h-bridge circuit to make a motor controller for Arduino projects.
Thanks again for your answer. It could be utilised as an Irtz44n driver; however, it would be overkill because this transistor is capable of delivering 49 amps! However, it all makes sense when you realise that it represents the flow of electrons. Sign up or log in Sign up using Google. Ricardo 4, 12 37 I'll breadboard the Z46 tomorrow and try to turn it on at 10V.