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Flexdrives work fine with these 445nm diodes as Spyderfire has shown
Their Vf isn't as high as blurays. Jayrob recorded 3.91v @ 475mA and 4.03v @ 640mA
So it shouldn't even hit 4.5 Vf, but i'll use that as an example
Using dr lavas formula for the flexdrive v5:
(Vout (Volts) * Iout (Amps) ) / Vin (Volts) < 1.2
4.5 * .9 / 4.2 = 0.964
and even with 3.6v input it's within the limits:
4.5 * 9 / 3.6 = 1.125
Edit: but if the Vf is going up linear with jayrobs voltages as the rule, it should be under 4.3 Vf
Gotcha. Most of the talk has been of ~5V.
It's a good thing we are now getting actual numbers.
The thing that is strange to me is that when driving the 12X diodes at above ~500mA some were reporting driver malfunction.
According to the formula:
6.0 * 0.5 / 4.2 = 0.7...
:thinking:
So this means that either the malfunction was not the driver or I am missing something.