Group Buy for the GearBest Ultrafire F13 - Closed?

[ohaya]

@Pulsar13

CX2829 is the controller and the MEM2309 is the FET. Though really the 2309 FET only has one input, plus 3legs is for Vcc and four legs is for Vout - theoretically only need three pins so why they put in in 8-legs I never know.

CX2829 is somewhat kick-ass cheap controller being able to provide output 1.5A by itself in that tiny package. But it’s only used to control the 2309 FET here, and this FET in my experience can only give out around max 3A when driving older XMLs.

But we’re probably jumping the gun here - not sure which driver we’ll get anyway - this one will be Ultrafire version (instead of Skyeye).

It’s nice to speculate though :)…

According to this:

A driver question for the experts

Please bear with me on this, I’m not expecting to get any answers but it’s worth a shot incase one of the resident electronics experts has an idea. Before I start, let me just say that this is a photoshopped image. I couldn’t find a picture of my driver, but found one very similar but with a few extra components, so I shopped them out. In the image below, what you will see is Exactly the components I have on my driver board. There is nothing on the back of the driver. It is a 3-mode driver. I…

MEM2309 Series P-channel enhancement mode field-effect transistor is a MOSFET

Is there another FET that might be compatible that’s lower resistance/higher current?