BQ34Z100-G1: SOC jump to zero

HI,

I have a system in development  using learned profiles.

Normally we have not been discharging at high rates until recently.

When we discharge a rates greater than C/2 for this application we are seeing the SOC suddenly drop from about 87% to zero.

I have looked through the forum information and found the following of interest:

https://e2e.ti.com/support/power-management/f/196/t/737245?tisearch=e2e-sitesearch&keymatch=SOC%20jumps%20to%20zero#pi320995=2

The conclusion is that the Average I load current was not updated from a previous discharge due to an internal timeout shown here:

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In reply to Big Bill:

Hi Big Bill,

To update the Average I Last Load for the next cycle, the current cycle will need to be run for at least 530 s at that current.

Once the device has discharged without interruption for at least 530 s, the discharge is considered qualified and will update the average i last load value in the device.

If the issue persists, please send a log of the event and the gg.csv of your settings.

Sincerely,
Bryan Kahler

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I have some questions:

What controls the 530s ?

Can I overwrite the Average I Last Load  with a predicted value?

-TW