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DRV8308: Rotor Lock (RLOCK) Protection Feature in the new datasheet

Part Number: DRV8308

Hello everyone,

In the DRV8308 datasheet released at 13 Nov 2017, it seems that rotor lock protection feature is removed. We have some old stock that we are currently using in our application and we can see that rotor lock protection feature is active in these chips and cannot be disabled. The device part numbers seem to be same in both the new datasheet and the older one. If we order the same device, how can we be sure that it doesn't have this RLOCK feature? Is there a way to disable this feature by editing some reserved registers in the older devices? Or the architecture of the newer devices are different from the previous versions?

Regards.

  • Hi Kursad,

    We will investigate and reply soon.
  • Hello Rick,

    Any news about this issue?

    Thanks..
  • Hi Kursad,

    Sorry for the delay.

    "In the DRV8308 datasheet released at 13 Nov 2017, it seems that rotor lock protection feature is removed. We have some old stock that we are currently using in our application and we can see that rotor lock protection feature is active in these chips and cannot be disabled. The device part numbers seem to be same in both the new datasheet and the older one. If we order the same device, how can we be sure that it doesn't have this RLOCK feature? Is there a way to disable this feature by editing some reserved registers in the older devices? Or the architecture of the newer devices are different from the previous versions?"

    The revision history describes the changes made to the datasheet. Sections associated with locked rotor detection section were deleted, and the direction change behavior was updated.

    For more information, please contact your local TI sales team to request more info.