Hi,

I recently bought a LED strip I'm planning to build my own driver circuits for. Given the current draw of the strip, I think I am going to need a MOSFET (actually three) to switch it, but as I'm fairly new to the world of electronics and MOSFETs, I'd like some advice on which to use.

The LED strip is a common cathode. It has one +12V pin and three pins, one for each color, which take a PWM signal to set the color of the LEDs. I think I would need a MOSFET to switch the LEDs. The specs of the LED strip say it can draw up to 6A. When I measured it at full brightness, white color (so every led burning) it actually drew only 1.5A but I think it's best to stay on the safe side and spec for 6A.

As a final point of information, the little controller unit that was shipped with the LED strip uses FDD8780 MOSFETs.

Can anybody suggest which MOSFET I should use for this? I can browse through Mouser or Digikey, but other than the 12V / 6A specs, I don't really know what to look for.

Thanks!

 

So you can use FDD8780 or any other mosfet for example IRL44z

 

At least 1.5 times of 12V and 3 times of 6A, of course if you choosing more times of Vds and Id is better for the power dissipation of mosfet

 

Thanks for your answers. I had looked into using the FDD8780, but it's an SMD component and I'd like to prototype some things on a breadboard first. It looks like I'll be going with these:

IRLZ44NPBF

Thanks again!

 

Those should be fine. Overkill, but so what.