DC Fan Control (Switching on/off)

Posted on Feb 6, 2014

Using an MC25060V2 fan, and I`d like to switch it on and off through software occasionally (i. e. not PWM or anything fancy like that). My thought is to either put an NPN BJT or a N-channel MOSFET on the low side and control it`s gate with a 5V microcontroller GPIO pin. Any reason I should choose one technology over the other (or another approa

DC Fan Control (Switching on/off)
Click here to download the full size of the above Circuit.

ch altogether) Here are schematic representations of what I`m proposing (just logical, representing fan as an inductor and part numbers / values not important).

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