Tool/software:
I have a new design with a BQ25619E charging a single LiOn cell at 4.2V
Register 0 value is 0x0A
Register 2 value is 0xBF
Register 4 value is 0x42
When it comes near the end of charge , the charge current decrease down to about 200mA with the battery level at 4200 mV
At this time registers 8,9 and 10 gives the following values : 0x34 0x00 0x80 ... The status pin is low, so all is OK, we are in fast charge with a bit more than 200mA
But a few seconds later the status registers will read 0x24 0x00 0x80 .... indicating that the charge is OFF ... the status pin goes high
I did not receive an INT at the moment of the change.
If I toggle the CE pin, the charger starts again in FAST charge for a few seconds then goes Charge OFF again
Here is an extract of the schematics, the voltage at input is 12V
Could someone explain this behaviour