BQ79606A-Q1: Will OV/UV monitoring continue from where it was if cell balancing is paused.

Hi Mark,

[EDITED FOR CLARITY]

Thanks for your question! Here is the way this works:

Assuming that the OVUV function has been enabled BEFORE balancing begins:

OVUV will stay on during balancing IF you do not enable the CB_DONE_THRESH comparator.

OVUV will pause once the CB_DONE_THRESH comparator is enabled. The comparator is enabled internally only at the beginning of the round-robin cycle, and therefore the OVUV will pause at the beginning of the round-robin cycle. It will resume from the point at which it was paused, which will be at the beginning of the cycle.

OVUV will resume once CB_DONE_THRESH is reached.

Let me know if you have any additional questions!

Regards,

Vince

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Hi Vince,

Thanks for the rapid reply, but I am still unsure about one point.

User Guide Section 8.3.5.1.1

The CBDONE function overrides the OVUV function (if enabled). During the cell balancing cycle, with CBDONE
enabled, the OVUV function is paused (if enabled).

User Guide Section 8.3.6.1

The OVUV function will not function if enabled during cell balancing as it uses the CB* inputs for sensing.
Additionally, during the cell balancing cycle, with CBDONE enabled, the OVUV function is paused (if enabled).

I am using the cb_done_thresh function to terminate balancing for a particular cell and we are pausing balancing and expect OVUV monitoring to be resumed at that point as the user guide suggests.

What we are trying to determine is if the round robin functionality continues from the point it was paused at or restarts..

Regards

Mark