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ADP5063 LiFePo4 Higher Current Load Routing

Question asked by mntmn on Mar 9, 2018
Latest reply on Mar 11, 2018 by Brian.Shaffer

Hi,

 

I'm designing a system that can draw more than 4A from a LiFePo4 cell. I want to charge the cell using ADP5063. The datasheet states Continuous Drain Current as 2.1A. So I want to route discharge power around the charger when the system is in discharge (battery powered) mode. How can I safely connect the cell to the system load (boost converter) and the charger in parallel? I imagine disconnecting the cell+charger from the system using a gate MOSFET when wall power is available. Do you have a recommended / best practice circuit for this or is it a bad idea in general?

 

Best Regards

Lukas / mntmn

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