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Original question:

BQ79631-Q1: Behavior of Bq79631-Q1 if reading over defined register boundaries

BQ79631-Q1: Safety Standard Requirements for BDU build for passenger EV

Utham V
Prodigy 10 points
Part Number: BQ79631-Q1

Hello sir/madam,

Greetings,

I want to use BQ79631-Q1 for BDU development. I am reading datasheet to understand the features of IC. In the meantime I want to know the Safety standard requirements for BDU development. Kindly let me know what are all mandatory standards required to purchase for EV passenger.

Thanks and Regards

Utham

  • 0
    TI__Expert 5070 points

    Hi Utham,

    The safety requirements can be found in the TI mysecure folder for this device. Let me connect someone who can grant you access to this folder. This should be completed by tomorrow.

    Regards,

    David

  • 0 in reply to David Ray
    Prodigy 10 points

    Hello David,

    Greetings,

    Thanks for the response. Once access is provided, please share me link for easy check out.

    Also, Where Can I get schematics for BQ79631EVM and how can I order this eval board?

    Thanks and Regards

    Utham

  • 0 in reply to Utham V
    TI__Expert 5070 points

    Hi Utham,

    You have been provided access. an email should have been sent to you that details how to access the folder. The BQ79631 EVM schematic is on the BQ79631 product page in the EVM user guide.

    For the 631EVM I will be switching this to email.

    Regards,

    David

  • 0 in reply to David Ray
    Prodigy 10 points

    Hello David,

    Greetings,

    Thanks for sharing files. The safety requirements are not available in the folder. 

    And I did not get BQ79631EVM order link.

    Thanks and Regards,

    Utham

  • +1 in reply to Utham V
    TI__Prodigy 540 points

    Hi Utham, 

    You should now access to the safety information for BQ79631. Same as the previous folders, follow the instructions sent by email to access the information. For the BQ79631 EVM, our team has reached out to you by email. 

    Sincerely,

    Michelle W. 

  • 0 in reply to Michelle Williams
    Prodigy 10 points

    Thank you, Michelle,

    I have received the files,

    Thanks and Regards,

    Utham

  • 0 in reply to Utham V
    Prodigy 10 points

    Hello Michelle,

    Good Morning,

    Further to our discussion, I have few queries on EVM as follows,

    1. What is the Dielectric strength of BQ79631EVM?
    2. What would be your suggestion if I want to implement CAN communication to EVM?
    3. What would be your suggestion for driving Contactors, as there is no relay drivers in EVM?

    Thanks and Regards,

    Utham

  • 0 in reply to Utham V
    TI__Prodigy 540 points

    Hi Utham,

    1. I'm not quite sure I understand what value you are asking for. However, the maximum battery pack voltage the EVMs can handle when using stacked EVMs is 2400V.
    2. Unfortunately, CAN is not within the device scope. However, I would encourage you to look at TI.com for MCUs that can translate CAN to UART since BQ79631 supports UART when used as a base device. 
    3. You can use the GPIO pins to output 5V HIGH/0V LOW to control the contactors or use the Master SPI feature on the GPIOs to control a driver for the contactors. Just ensure that the contactor specifications are compatible with the capabilities of BQ79631.

    Sincerely,
    Michelle W.