Other Parts Discussed in Thread: BQ25820EVM, BQ40Z50, BQ25820
Tool/software:
Hi
I have been discussing a 3S1P battery charging system using a BQ25820EVM and BQ40Z50EVM. The system is intended to be controlled by a host processor.
When the BQ25820 is charging on its own, the batteries reach full charge. However, when the BQ40Z50 is in-circuit as well, the charger starts charging but around halfway through sets the VBAT_OV_STAT flag and the charging cycle stops. This has happened multiple times.
The two devices are not connected other than through the charging circuit but there is something causing the charge to stop - I'm just not sure why.
Any suggestions? I can generate any information required. Please let me know what's needed.
Thanks in advance.
Max