(1) I'm trying to configure a Ni-MH charging circuit using BQ25172.
ISET=500mA@600ohm
VSET=3cell+Inter,18kohm
TS=Therm 10kohm
VIN=5V-1A
In this case, VOUT_OVP=1.7V×3cell=5.1V, which exceeds VIN=5V.
Is it possible to detect full charge based on voltage?
In that case, at what voltage will it be detected?
(2) I am using an electronic load to check the charging stop voltage.
As the VIN increases, the charging stop voltage appears to decrease, which is unexpected.
On the contrary, it is not constant.
What kind of problem is there with the settings?