Hi,
I have a question about the charger current factor K. The datasheet figure 8 and 9 seem incorrect. With 3.3k, the typical charge/precharge current should be 264mA/27*mA, but the graphs show 300/30. Could someone confirm if the graph is meant to show typical and what the error is? (also it says A instead of mA).
*I can’t see anywhere where it specifically says what the precharge current is but im assuming it is set by Kpre / Riset?
The graph is close to what the currents would be if k was worst case (max), 295mA/32mA, but still a bit higher. I want to confirm that the min / max K values (797 / 975 AOhm) are correct? As we want to set the charger close to 1C as possible for the battery, but without it being too high on a charger with high K.
Also, are there any distribution curves for the spread of K value? And is there any option of getting a part number with a closer tolerance of K value? Eg +/- 3%
Many thanks,
Michael.
