I have to design a charger which includes the conversion from AC line (220VAC), for four LIFEPO4 batteries in series, 3300mAH.
It has been hard to me to find documents and decide the components for this project. Application note SLUA-097 describes almost what I need: an offline charger, but for LI-Ion batteries, based on UCC3809 (primary side driver) and UCC3956 (Li-Ion Charger). This is the circuit, including primary and secundary side:
As I said, this is almost what I need, but unfortunately the UCC3956 is obsolete, and also remember tha I need a charger for LIFEPO4 batteries, which is not the case here.
Please any information will be welcome.
Thank you.
