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On page 2 of the data sheet it says Vgsth is -2V min and -4V max. If you look at graph in the datasheet of current vs gate-source voltage Fig 3 and extrapolate down to 3V you will see that almost no current will flow. Why is irf9504n WiFi chip not powering up?
For instance if in eg Mumbai or Bangalore there are many suppliers. This would not be good. Russell McMahon k 9 Lower beta transistors can be used with smaller values of R4. Thank you for understanding my dataeheet. What is your load current?
I am dayasheet in Delhi. For low saturation voltage both Darlington pair and Sziklai pair are bad because they “steal their own drive” as they turn. BCxx has a typical saturation voltage of about 0. I am able to get it in bangalore and mumbai but they are taking long time for shipping say weeks.
A FET becomes attractive: Best likelihood, based on all evidence and the data sheet, is that even though your load current needed irt9540n tiny – the Vgsth value is so far above your drive voltage that it just sits and grins at you. My WiFi chip works fine with 2. I have no idea what could be the issue? They are much more common, cheaper and usually have a lower on resistance than p-channel for the price.
Are you doing that? Instead of switching 3. I have to go with high side switch only. Normal transistors BC is switching only mA.
Vijay Anand Chandrasekaran 45 1 To do that with eg 0. It’s best to give components like that a solid connection to the ground plane without any pinch points.
Email Required, but never shown. Mosfets are incredibly sensitive to static and I have destroyed many like this.
IRF IRFN Power MOSFET P-Channel 23A V
But the voltage drop is around 0. So a Darlington may not do what you want but a single bipolar may. Although they usually seem to fail on rather than off. A VERY undemanding spec. R2 not required if input is always driven high or low and never floats.