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BOOSTXL-DRV8305EVM: Is there a higher voltage version of this board compatible with the Launch-XL F280049C?

Nathaniel House
Prodigy 20 points
Part Number: BOOSTXL-DRV8305EVM
Other Parts Discussed in Thread: DRV8305, LP-AM261, LAUNCHXL-F28069M, DRV8353

Tool/software:

Hello,

I'm designing an FOC system for motors that we make and wanted to implement FOC as a testing process for R&D into other control methods and/or QA such that we can verify elements of the motor from a controls testing strategy. To that end, I've purchased an F280049C and am assuredly confident in implementing a BOOSTXL-DRV8305EVM to drive a motor for proving FOC as a viable method, but wanted to know if there were higher voltage versions available by TI or if that would require me to design a new driver board using the DRV8305, we're looking for something in the 90-100V range. 

Additionally to this, I'd like to know if the BOOSTXL-DRV8305EVM is compatible with the Launch-XL F280049C or if I'd need to purchase an LP-AM261 Eval board as that's what was on the page for the BOOSTXL-DRV8305EVM.

Thank you,

Nathaniel

  • 0
    TI__Expert 5425 points

    Hi Nathaniel,

    Thank you for reaching out.

    According to the website, I see the DRV8305EVM is usable "out of the box" with the LAUNCHXL-F28207F for InstaSPIN-FOC or up to two BoosterPacks can be combined with LAUNCHXL-F28069M.

    If you wanted to use the F280049C, you could do it but would have to blue wire over the necessary connections to the headers on the DRV8305EVM.

    You can use this diagram to see the pin out in order to make the proper connections

    Also, in regards to the higher voltage needed, can you clarify if the 90-100V will be the VDRAIN MOSFET voltage?

    The power supply pin (PVDD) to the DRV8305 device has an abs max of 45V.

    You may want to check out one of our higher voltage rated devices DRV8353, which as an abs max of 80V on VM and 102V on VDRAIN.

    Thanks,

    Joseph

  • 0 in reply to Joseph Ferri
    Prodigy 20 points

    Hey there Joseph, thanks for getting back to me so quickly!
    I think it's the VDRAIN MOSFET voltage, or at least the operation voltage of the motors we run, as they are usually large enough to pull 85-100V at 0.8-1.2A for the model we're looking to for testing. We're fine with the supply voltage being the 45V, I don't think that will give us issues. 

    Also, I've noticed on the setup of the Launch-XL F280049C that the Motor Control SDK is the preferred option over the insta-spin FOC setup, mostly because it's mandatory that we have programmatic control over the parameters involved with FOC control for our motors as per project specification, it's not simply enough to get it spinning with FOC but to control the back-end processes enough to know why and how FOC gets those motors spinning. 

    Let me know if the higher voltage rated devices have part numbers I can look into such as the DRV8353, and thank you for the input on the LAUNCHXL-F28207F

    also, as far as booster packs go, what all does that look like? I'm a little unfamilar with what the trade-offs or decisions involved are with choosing to use the LAUNCHXL-F28069M over the LAUNCHXL-F28207F in that context, is one able to run two motors with two DRV8353/DRV8305 where the other can only run one?

  • 0 in reply to Joseph Ferri
    Prodigy 20 points

    also, looking into the DRV8353, are there evaluation boards that would help with its implementation, or is there just an evaluation board for the DRV8305

  • +1 in reply to Nathaniel House
    TI__Expert 5425 points

    Hi Nathaniel,

    Based on VDRAIN being up to 90V as well, I think the DRV8353 is a better suited part for your application. Both the VM and VDRAIN pins on the DRV8305 have an abs max of 45V now that I am checking.

    This being said, the DRV8353 has the evaluation module you are looking for, which can be found here:

    https://www.ti.com/tool/DRV8353RS-EVM

    https://www.ti.com/tool/DRV8353RH-EVM

    The DRV8353 also has both Hardware and SPI variants, noted by the H or S at the end of the package name. So, make sure to select the SPI variant if you want to communicate with the DRV through SPI for example

    On these pages, you can find more information about the evaluation modules in the EVM user's guide in one of the links near the bottom.

    As for the software, you can use the instaspin FOC GUI available for this EVM (Faster bring up, but less customizable), or you can follow the instructions to set up the FOC firmware through the SDK (more difficult to set up but more code customizability)

    Links to those below:

    https://www.ti.com/lit/pdf/SLVUB79

    https://www.ti.com/lit/pdf/SLVUBH8

    Thank you,

    Joseph

  • 0 in reply to Joseph Ferri
    Prodigy 20 points

    Lovely man, thank you, this confirmed everything I needed. 

    You're the best!

    Smiley

  • 0 in reply to Nathaniel House
    TI__Expert 5425 points

    Hi Nathaniel,

    No problem!

    I'll go ahead and close this thread, but feel free to make another thread if you have some more questions.

    Thanks,

    Joseph