Hi,
I'm currently working on adding the stepper-focus option to my existing
Bartels Stepper drive system.
Before buying an MC3479 IC, are there any alternatives that are similar?
I may as well try and use something in my junk pile rather than buy
this IC if I'can avoid it.
I have several TA7774P ICs from old 5 1/4" floppy drives that seem to
be a similar driver IC almost pin for pin......but only almost.
They seem to drive a bipolar Stepper 12v 500ma so I thought maybe I
would try one.
Would anyone be able to take a quick look at the TA7774P datasheet and
tell me yes or no if I could do a swap for the MC3479?
http://www.marktechopto.com/pdfs/tos..._datasheet.pdf
Mel's add on circuit:
http://www.bbastrodesigns.com/Steppe...l#_Toc90090796
I don't mean a straight plug in swap, I realise some pins are in different
positions on the 16P DIL package.
I also posted this into the Scope Drive Forum.
thanks in advance,
Steve B