• State TI Thinks Resolved
  • Locked Locked
  • Replies 5 replies
  • Answers 1 answer
  • Subscribers 29 subscribers
  • Views 576 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

DRV8316-Q1: drv8316 vs drv8361-q1 , motor power

Jin-Suk Choi
Intellectual 2450 points
Part Number: DRV8316-Q1
Other Parts Discussed in Thread: DRV8316

Hi~ Team.

Customer is looking for 12V/50W BLDC driver solution, so introduced DRV8316-Q1 which peak current is up to 8A.

BTW, DRV8316 datasheet has up to 80W motor application, but DRV8316-Q1 datasheet has up to 40W motor application in first page.

I think both 8316 and Q1 has same die but Q1 has more hard reliability condition.

Can we guarantee DRV8316-Q1 up to 50W application even though described <40W in datasheet?

Let me have advice.

Thanks.

  • 0
    TI__Mastermind 27020 points

    Hi Jin-Suk,

    I am awaiting an answer from systems about this. I will get you a response by tomorrow.

    Best regards,

    Joshua

  • 0 in reply to Joshua Horlander Cruz
    TI__Mastermind 27020 points

    Hi Jin-Suk,

    The DRV8316-Q1 should be able to be run at 50W without any issue so long as the max specifications of the device listed in section 7 of the datasheet are not violated.

    Best Regards,

    Joshua

  • 0 in reply to Joshua Horlander Cruz
    TI__Intellectual 2450 points

    Hi~ Joshua.

    In datasheet, below sentence looks limit only under 40W application and it makes confuse customer. Would you please revise below sentence by removing or modifying more power, or any detail reason why up to 40W?

    3 Description The DRV8316-Q1 provides a single-chip power stage solution for customers driving 12-V brushless-DC motors up to 40-W

  • 0 in reply to Jin-Suk Choi
    TI__Mastermind 27020 points

    Hi Jin-Suk,

    I will reach out to my team about this in order to provide you with a better response. I will aim to get you a response by Tuesday of next week.

    Best Regards,

    Joshua

  • 0 in reply to Joshua Horlander Cruz
    TI__Mastermind 27020 points

    Hi Jin-Suk, 

    The DRV8316-Q1's datasheet was specified with the device being an automotive part in mind. Usually for automotive devices 12V is used when a device has an absolute maximum voltage of 40V, whereas in industrial applications 24V is the more common voltage used with a 40V absolute max. Automotive applications being half the voltage of industrial application is the reason that the datasheet recommends 40W on the Q1 version of the device and 80W on the industrial version.

    In the datasheet there is no spec for a maximum wattage the device can be used at, we only have the max current specified. So the customer can use the device at 50W so long as they have sufficient heat-sinking capability in their design to keep the junction temperature within the 150 degC limit.

    Best regards,

    Joshua