Tool/software:
Hello,
I wanted to post my findings for those that may have the same issue as myself and these related posts:
BQ25306: Regarding STAT output when battery is not conected
BQ25306: BQ25306EVM - Blinking intervals of the LED driven by the 'STAT' terminal
While the TI engineers mentioned that the interval may be effected by capacitance on the BAT pin/rail, changing the capacitance here did nothing for me.
What I found to also effect the pulse rate is the resistor values used in the voltage feedback, which sets the charge voltage.
In my case, I had to adjust the voltage to compensate for the charged voltage being 100mV less than desired (8.4v).
To do that, given the resistors I had on hand, I used 40.2K for R1 and 6.04K for R2.
This caused my status LED when no batteries were connected to flash at a much faster rate to the point it almost looked on completely.
I decided to switch back to using the recommended 1.33M & 200K resistors since everything else was the same and the eval board worked fine, and this worked!
Hope this helps.
