06-15-2011 09:06 AM
I need to provide -15VDC to a circuit to switch some relays that already have a ground(The circuit is not typical). The 6516 specs say you can use +- 30VDC on the outputs but at other places in the manual it says not too switch the polarity. I am confused, do I need a 6516 or a 6517 in my case? I believe my application requires sinking outputs but I need to provide -VCC instead of GND to the inputs. I have read the sourcing vs sinking notes but I am still confused about this application.
06-16-2011 10:37 AM
Could you give a description or post a picture of your intended wiring diagram? This would help to understand what you are trying to accomplish.
Thanks,
Sean
06-16-2011 11:00 AM
06-17-2011 04:37 PM
You do indeed need sinking sources, which would require the 6517.
Thanks,
Sean