Currently the board has a 41 microhenry inductor (yellow brown black silver).And it seems like currently, the inductor is outputting a value slightly higher than 50ma. I would like try several different values of inductors so that i can use the least amount of current to produce an acceptable amount of light, but i am unsure of how to calculate the current based on the inductor size.https://www.mikrocontroller.net/attachment/158139/QX5252.pdfThere is a formula on the data sheet, but it doenst seem to create sensibe results:Pled = (2VIN/L)*10^-6(2*1.5)/41)*10^-6 = .00000007Even if that is amps, its not right... :-/
i am driving 15 leds in parallel, and i want to drive them at between 10 and 15ma each which would mean about 100-150ma. The table doesn't go that high. The chip is capable of up to 300ma
The leds seem to be evenly matched. Running them on my bench power supply they light evenly. I'm going to be under driving them so i shouldn't have to worry about a particular LED being over driven.