BQ40Z50-R1: How to understand the register function of Device Gauging Data (at the Time of the PF Event)?

Statham Su

Genius 4990 points

Part Number: BQ40Z50-R1

Hello Sir:

We need more explain about the function of Device Gauging Data (at the Time of the PF Event).

What the main function of Cell 1 DOD0 ~Cell 4 DOD0 is?

Please kindly provide more explain and application for me.

Thank you very much.

over 5 years ago

0 Statham Su over 5 years ago

Genius 4990 points

0 Wyatt Keller over 5 years ago in reply to Statham Su

TI__Guru** 105640 points

Hello,

The DOD data is the opposite of the SOC and it uses a 14 bit number (0 to 16384), DOD is used by the gauge for it's capacity calculations. You can refer to the app note on the Impedance Track algorithm for more information: https://www.ti.com/lit/an/slua450/slua450.pdf

This data is just stored when the PF event occurs so the DOD for each cell can be known at the time of a permanent failure.

Sincerely,

Wyatt Keller

0 Statham Su over 5 years ago in reply to Wyatt Keller

Genius 4990 points

Hi Keller:

Thanks a lot your information.

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BQ40Z50-R1: How to understand the register function of Device Gauging Data (at the Time of the PF Event)?