I'm making a power board for my robot and I am looking for some advice regarding LiPo battery protection ICs.
I might need to draw a fair bit of current (9A), though if I get the programming right, it shouldn't be a problem (will probably be around 3A max).
Anyway, I was looking at using DS2764 from Maxim (datasheet), and it seems nice aside from the fact that I don't think I can use the 14.7V packs (need 12V output) I wanted to get :) Plus the current is limited to 2.5A. It also has the 2-Wire Interface that I don't plan using, so it's a bit of a waste.
Next, I started looking on Digikey for some LiPo protection devices, and now I'm confused: let's say I have a 14.7V LiPo battery, which means it's 4S I think. So technically there are 4 cells in there, but I don't have access to all 4. So when sorting the ICs, should I look for ones that say 1 cell (because that's the number of connections I have) or 4 cell? The 4 cell ones seem to always want inputs from all 4 cells...
Do you have any suggestions for something that can handle the current (I'm using a fuse anyways, so just as long as it has a fairly high limit it's probably ok) and the voltage? I know it's quite vague, but I don't really know where to look.