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Does TI have any BLDC motor driver integrated a temperature sensor?

Bill Xu
Intellectual 1320 points

Hi, Dear Product line

 do we have any BLDC motor driver(>24V/2A) integrated temperature sensor for customer to monitor chip temperature rise and then decide when to protect the chip? big thanks for supporting! 

regards,

Bill 

  • 0
    TI__Mastermind 18976 points

    Hi Bill, 

    I've looped in Vishnu from my team for further commentary on other portfolio of products.

    From the DRV8x and DRV3x portfolios (gate driver products), we have an overtemperature 'warning' or 'fault' that triggers device flag or shutdown if the temperature exceeds a particular threshold defined in the datasheet. No digitized temperature that can be read out by the MCU though - it can only tell if it's too hot vs within operating temperature. 

    Here's an example: https://www.ti.com/lit/ds/symlink/drv8305-q1.pdf

    Best Regards, 
    Andrew 

  • 0
    TI__Mastermind 24415 points

    Hi Bill,

    The comment from Andrew on DRV8x and DRV3x holds good for Integrated control devices (DRV10x and MCx) as well. You might have to use NTC  to monitor the device temperature. Alternatively, you can measure the RthetaJA  of your PCB through thermal simulations and calculate the die temperature based on power losses and ambient temperature.

    Regards,

    Vishnu