... I guess I'm only a stupid old man that asked from some help.
Don't worry about Dave, he (and some others) have a habit of belittling people who aren't as smart as they is :-). Happens pretty much in all forums.
And welcome to EEVBlog, hope this didn't put you off. If you really get stuck, I'll make you up a generic spreadsheet. Just PM me.
gang, after all these years on the planet, my skin is kinda thick. but sometimes my wagon does come out of the barn.
Thanks everyone for the help. For some reason the spice simulation doesn't seem to like the values used for the low end turn off. It became quite apparent that the way the designers made the IC, changing one resistor value ever so slightly upsets the whole cart.
So what I did was pull the voltage dividers from the OV and LV pins. I put separate voltage dividers on each input line. I will order some of the ICs and find a carrier so I can put power to the things in real time. It also looks like a 10 turn trimmer might be needed as tolerance in even 1% resistors can really swing the outputs.
Since I don't have one here to look at, the datasheets say the footprint is a TSOT-23. Tiny little sucker!
Made up a pcb device pattern using a SOT-23 footprint to start with. According the dimensions for the pcb cad software, the one I made should be okay. We will see.
thanks everyone
mike