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hi walkura,
the reason that I am using a PMOS instead of NMOS is due to TLC5940 is an active low PWM device. I was thinking to go with a inverter and a NMOS or just a PMOS. In the end I opt for PMOS.
And I thought few hundred Hz wouldn't hurt that even tho the switching time will be doubled or...
Yes it is drain to source 5V and maximum of 10A to drive my LED. It is just a simple PWM Dimmer for my LED groups. I am using a 15V on the gate with pullup resistor. With that voltage the mosfet should be in fully on/off stage.
Yup as mentioned, pulsed. Currently I am using roughly 400Hz...
Thanks for showing a good example. Yes something like this is what I am looking for. I tried to "measure" the temperature with my hand...and it is very hot from what i felt. But it didn't burn my hand tho, so just to be safe since these heatsinks are not very expensive in the first place. no...
Yes that was my intention on my first post. Can you suggest any heatsink? I can't seem to find anything suitable.
Or any guide to finding a correct model would be appreciated.
I know there are many choices out there and that is the problem, I am not sure which is the right one.
it is 5V and up to 10A.
How hot, I am not too sure about actual temperature but I do know it gets hotter than my usual mosfet(don't have any professional equipment to test)
I let it run for hours and it was still OK.
What I meant by stock heatsink is the small metal plate on the back of the...
Hi,
I am looking for a heatsink for my IRF9540 MOSFET. Source to Drain current will go as high as 10A so I think a better heatsink will be required.
Currently the stock heatsink that comes with the mosfet seems a little bit hot, so I need something that is easily installed and small size as...
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