Hello
I have built a lead acid battery charger circuit using the BQ24105 charger IC as per SLUA425
However I have found a couple of things don't quite match
In the Table 1 it says
Charge in progress = STAT1 ON, STAT2 OFF (I observe this state and all Okay)
Charge Complete = STAT1 Blinking, STAT2 Blinking (I am observing STAT1 Blinking, STAT2 OFF)
Charge Suspend, Battery Absent = STAT1 OFF, STAT2 OFF (I observe this as correct).
Is the table correct for Charge Complete?
The battery is definitely pulse charging at this point, waveform is correct but status indications are not as per the table.
Also I have a question regards the flyback diode between pin 20 and GND.
Circuit shows no flyback diode, but as I have designed circuit to suit multi chemistry I have the allowance for the flyback diode on the PCB.
Should this be populated or not and why?