Go Down

Topic: Help Chosing a MOSFET to drive a fan (Read 610 times) previous topic - next topic


I am not very familiar with MOSFETs and would appreciate some suggestions that will enable me to vary the speed of a 12V fan that draws a maximum of 4A.
I have heard I have to use n-channel logic level MOSFETs, would the following two models do the job or are there better options?
1. FP30N06LE https://www.sparkfun.com/products/10213
2. FQP30N06L: http://www.google.ca/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CDMQFjAA&url=http%3A%2F%2Fwww.fairchildsemi.com%2Fds%2FFQ%2FFQP30N06L.pdf&ei=PiAYUeajG4HoiQLvgIGICA&usg=AFQjCNFxtfO205b58XoKm3aBLsBewcPNuQ&sig2=r_PbD0hyRgCA9tMhdNFQLg



Those are perfect.

Normal good old power mosfets need about 9V or 10V at the gate to switch it on.
So that's why you need a 'logic' power mosfet. They are designed to operate with logic levels from a microcontroller or a Arduino.

You could also buy any n-channel logic power mosfet from Ebay.


SparkFun also offers that same mosfet with a small module board with terminal strips for making easy connections.



Go Up

Please enter a valid email to subscribe

Confirm your email address

We need to confirm your email address.
To complete the subscription, please click the link in the email we just sent you.

Thank you for subscribing!

via Egeo 16
Torino, 10131