Originally Posted by 10bulls hey jerber!
What pulse width can you go down to? (in Mach2?)...My Fairchild optos are good for down to 4us, but any lower than that and they 'fail to proceed'. |
According to the datasheet they can handle a pulsewidth of approximately 200 nS, that's fast enough for the 45 kHz Mach2 can pulse out. However I can't seem to drive my steppers, I tested 4 different models so far, any faster than 6 kHz from Mach2, but that's ok for me.
I also played with a hcpl053l (a dual 050l) wich is a SMD 3.3V type but worked nevertheless.