Using a power supply to replicate an over discharged battery (0v), when this apparatus has been applied to the charger that uses the BQ24120 chip, no fault condition is being detected. The battery charger should not try and charge this battery and voltages at STAT1 and STAT2 (page 17) should be pulled LOW but this is not the case. What does happen is that STAT 1 constantly pulses from LOW to HIGH. The operational flow chart (page 13) indicates that a timer starts when Vbat < Vlowv a timer starts for 30 minutes, I have waited longer than 30 minutes and still there was no change to STAT1 pulsing from LOW to HIGH.
I have ruled out that the setup is incorrect as when the power supply has been set to replicate an over charged battery (>4.8v), the fault condition has been established and the charger does not try and charge it. Instead STAT1 and STAT2 remain LOW.
Any thoughts of why this is happening and how to allow me to enter the fault condition for an over discharged battery cell?