VDS_TRIP

Hello Kura,

The device was not designed or tested at the minimum or maximum threshold for the VDS threshold. This means, the min and max specification cannot be provided.

As such, feel free to treat the next  typical value (or higher bit value) as the maximum value and design the system where it may trigger a little bit before the selected typical value. To reiterate, set the VDS lower than a typical calculated value to add margin for the unknown maximum and be prepared for the VDS to trigger lower than the selected typical value.  

Best,

-Cole

Hello Kura,

Please refer to our MTBF and FIT rate estimator: https://www.ti.com/quality/docs/estimator.tsp?OPN=DRV8305NEPHPQ1&CPN=&partNumber=DRV8305#resultstable 

I didn't have your exact part number so I used the one that has a operating range of 175C max in this example. Please feel free to use the exact part number. You'll notice we did the qualification at 125C but you can use the derating tool to check out the rates for 175C.

Best,

-Cole

Hello Kura,

Thanks for the part number. Here's the link: https://www.ti.com/quality/docs/estimator.tsp?partType=tiPartNumber&partNumber=DRV8305NEPHPRQ1#resultstable 

MTBF is in units of hours.

Best,

-Cole

Hello Kura,

I've confirmed internally that this part was qualified was at 150C TA. Our MTFB and FIT rate system has a "quirk" where the numbers are derated using the equation given in the link below to keep the data consistent for a family of part numbers. I would think this makes it confusing for automotive qualifications but I don't have control over the system, so the feedback has been provided.

As such, just use the numbers in what you see for the table that's given and you can use the equation to get the values we got during the 150C qual. 

Best,

-Cole