1381-J replacement for Miller Solar Engine?
I know BEAM robotics have fallen out of style a bit, but I hope someone is still mucking about with them because they are super cool. I am working on a Miller Solar Engine and trying to find a replacement for the 1381-J voltage trigger. I tried out the DS1817. It was recommended to me by one the technicians at Digi-Key as a replacement for the MN1381-J and on paper it looks like a good swap, but in the circuit it is just not resetting once the voltage drops. I have it breadboarded and I can stick the 1381 in it and it works perfectly. When swapped with the DS1817 it triggers once the top voltage is reached, but then never resets (it just drains forever.) I double-checked the component type to make sure it was just not a miss shipment of the wrong item, but it checks out. And I tried swapping the DS1817 component out thinking that I just had a dud (or 5) but it does not seem to help. Any thoughts?
Here are the data sheets on the 2 items.
one bit of weirdness I already figured out is that the 1381 looks like it has a different 1-2-3 pin out sequence at the top of the PDF but it turns out it does not at the bottom.