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DRV8343-Q1: Motor Driver for Avionic Projects

Furkan Fehmi Sefiloglu
Expert 3118 points
Part Number: DRV8343-Q1
Other Parts Discussed in Thread: DRV8353M

Hi Team,

Can you please advise with following request?

"

We are considering using the DRV8343-Q1 integration in the design that includes a DAL-C level motor driver, because it is reliable and allows it to drive in different modes, but we are not sure about its suitability for aviation projects. Considering the DO178 / DO254 processes, we would be pleased if you have comments that will contribute to our evaluation.

Do you have any suggestions for Driver IC for use in aviation projects? Do you have any MCU suggestions?

"

Thanks in advance

Best Regards

Furkan Sefiloglu

  • 0
    TI__Mastermind 21805 points

    Hello Furkan,

    My best recommendation would be to take a look at the DRV8353M, which does have extended temp range down to -55C to support avionics applications.  There is also UC2625-EP which has similar extended ratings for avionics.

    DRV8343-Q1 is qualified down t0 -40C, which may not be suitable depending on the specific requirements of the project.

    Thanks,

    Matt

  • 0 in reply to Matt Hein
    Prodigy 20 points

    Hello Matt

    -40C is enough for application. Could you recommend a suitable product for do178/do254 processes? not only temprature requirements, also for easy verification

    Thanks,

    Eray

  • +1 in reply to Eray Gul
    TI__Mastermind 21805 points

    Hello Eray,

    We do not have any motor drivers which are specifically qualified to DO178 or DO254.

    I think DO178 is related to safety-critical software, our DRV8x devices do not have any firmware inside, they are just gate drivers.

    DO254 is related to the hardware design and applies to FPGAs, PLDs, and ASICs which integrate specified functions.

    • An item is simple "if a comprehensive combination of deterministic tests and analyses appropriate to the design assurance level can ensure correct functional performance under all foreseeable operating conditions with no anomalous behavior."
    • An item is complex if it cannot have correct functional performance ensured by tests and analyses alone.

    DRV8343-Q1 does not have firmware and is fixed function, although it does have many different features integrated. Therefore I believe it falls under the "simple" category, since the behavior of the device is fixed (albeit detailed)

    Thanks,

    Matt

    (sourced from https://en.wikipedia.org/wiki/DO-254)

  • 0 in reply to Matt Hein
    Prodigy 20 points

    Hello Matt, your answer is enough. thank you very much.

  • 0 in reply to Eray Gul
    TI__Mastermind 21805 points

    Hi Eray,

    Glad I can help, please let me know if you have other questions

    Thanks,

    Matt