Hi,
I have a project with single cell 2A USB charger BQ24259.
My IC setting: PSEL = Low, OTG = Low, RILIM = 200 Ohm and it is supply from external 5V voltage source.
In datasheet I can see that fast charge current is on constant value in constant current phase (by default 2048mA). I noted that this current in my circuit is reduced below 2A when battery voltage is closer to 4,4V.
Should fast charging current be contatnt during whole constant current phase?
Waiting for reply.