DRV3255-Q1: Functional safety certification

Hi ,

We develope motor control unit  and use TI DRV3255 as gate driver.

The DRV3255 as a class III HW element  for ISO26262. 

I already got safety manual and FMEDA.

But 3rd party says we still need to provide safety case or assessment report.

Is there safety case or assessment report for DRV3255?

best regards,

Albert