whoopsie
there's activity here *LoL*
langham - thank for the input
those CREE leds are sure very interesting! I just have set my mind on the Luminus for this project.
So i have slowly returned to this, offroad season has started and the Jeep is rolling. Have gone wheeling last weekend and on the way back this project popped back up in my head. So i've been thinking, and after a quick test I can state that i'm not going to use SST-90's . Those reflectors I've got fit precisely on the dome and leave very little space for solder on star pads.
I'm going to use CST-90's (which has been suggested earlier in the thread - I wish I had been listening
- sorry
)
Major advantage (besides CST's copper base and much lower thermal resistance from die to heatsink) is that the die dome is the same (so I can use that precise fit of the reflector) but electrical contacts are moved away and are much bigger.
So, I have a couple of SSR-90's GN100 W65S (SSR = SST on star) over which I won't be using..
maybe I'll make something out of them later.
Ordered a pair of CST's ..
will experiment a bit when they arrive.
I'd looooove to get my hands on a driver that can drive these near it's max current, say 12A, and be powered by my Jeep's electrical system - 11-14.5VDC
which would also remove shape/size restrictions.
So far i've found nada...
Right now I'm researching how difficult it is to make my own driver. Looking at different driver chips LM3401, MAX16820, MAX16834 and even bang-bang using a PIC mcu and MOSFETs.