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BQ79616-Q1: I can't find where to change the protection values for BQ79616

Fatih TAHTASAKAL
Prodigy 80 points
Part Number: BQ79616-Q1
Other Parts Discussed in Thread: BQ79616, USB2ANY, , BQ79631-Q1

Hello

I designed an HV battery using BQ79616 and BQ79631.

I can communicate with BQAutoEval software using USB2ANY. I can see all the stacks. No problem. I can see the cell voltages, it's ok.

Question 1:
But I have no idea where to set the protection values. For example, how and where do I set the overvoltage protection value? Where do I set the over-temperature protection, over-current protection? I could not find the configuration settings for GPIO in BQ Auto Eval.

Question2:
Do I have to use the BQ79631 to drive the mosfets?
Is there any problem in designing directly by driving mosfets with BQ79616 without using BQ79631? How should I configure to use GPIOs on BQ79616? Where are these configuration settings in BQAutoEval?

Question 3

I wonder why there is no advanced and basic config options in my software interface

from my software screen


 
from ti document

Best Regards
Fatih

  • 0
    TI__Expert 3370 points

    Hi Fatih,

    I need to consult with my colleagues more on this. I will have a response by EOD, 8/23, CST.

    Best Regards,

    Julia Louis

  • 0 in reply to Julia Louis
    TI__Expert 3370 points

    Hi Fatih,

    Question 1: The threshold values can be set in the "Protection" tab of the GUI. Regarding hardware protectors (in general for this device) and how to set this up (which registers to configure, the procedure, etc), we have a section in the BQ79616-Q1 datasheet that covers this. I encourage you to please look at section 9.3.4 for this.

    Question 2: Can you please clarify/point out which MOSFETs you are referring to (i.e. on which device, in which datasheet section you're referencing, etc). Can you also provide a diagram of your setup? Which voltages are you trying to measure? The BQ79616-Q1's GPIOs should be physically capable of driving the MOSFETs similar to the BQ79631-Q1, but the measurement scheme is set up differently.

    Question 3: A couple ways to have more advanced/specific control is to use the "Command Sequence" tab (able to write/read/etc certain registers through the command dialog) or by changing certain registers' values directly in the "Register Map" tab.

    Best Regards, 

    Julia Louis