Hello,
bq27520-g4 datasheet states that BAT_GD is push-pull: BAT_GD Battery Good push-pull indicator output
bq27520-g4 reference manual states that there is a pull-up resistor available for this pin: BATGSPUEN = Enables internal pull-up resistor to VCC (2.5 V) on BAT_GD pin
According to the results of my experiments this is not a push pull and no pull up available (with enabled pull up resistor there is 0.4V, when active). Output levels are fine only with external pull-up.
And I can't find errata sheet for bq27520-G4.
Please, help with this issue.
Best regards,
Eugene