bq34z110 power on reset

Stuart Graham

Hello,

I understand the RAM values are lost when the power is cycled (i.e. battery disconnected) but what does this mean in reality?

What effect would there be on the reporting when the battery was connected again?

Thanks.

over 11 years ago

0 ThomasCosby over 11 years ago

TI__Guru 73830 points

Stuart,

The device will reload operational parameters to the RAM and run an FCC simulation when a reset occurs. This iwll estimate FCC and RemCap based on the present state of the pack.

Tom

0 Stuart Graham over 11 years ago in reply to ThomasCosby

Prodigy 165 points

OK, thats fine, thanks. I assume this will not be as accurate until a charge/discharge cycle occurs? Or does the ic update the flash data periodically in service?

0 ThomasCosby over 11 years ago in reply to Stuart Graham

TI__Guru 73830 points

The device does update the flash memory to save lifetime data, QMax, Ra table data, etc. The FCC simulation, that occurs after reset, will estimate capacity and the accuracy will depend on how rested the cells are and how is flat that region of the OCV table. It iwl run another simulation when it exits the relaxation state.

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bq34z110 power on reset