Hi all, I plan to get some pcbs made up, very similar to the following:
http://kitili.en.made-in-china.com/prod … turer.html
http://en.ofweek.com/manufacturer/3w-rgb-power-led
I have got hold of some 3w RGB LEDs - this type: http://www.rapidonline.com/electronic-c … led-200101
I’m wondering what to connect the thermal pad on the bottom of the leds too, it appears to be connected to the VCC side of the red chip in the led. I will be running them in series so I can’t connect the three heat pads to a common plane in the pcb.
I’d like some suggestions on how to do this, the PCB in the first link I posted is hard to examine what the heatsink pads are connected too, but they look like they are all on the same plane?
cheers