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TXB0104: Component Failure Rates per IEC TR 62380

Josue Rojo
Prodigy 50 points
Part Number: TXB0104

Tool/software:

I would like to clarify something related to the Component Failure Rates calculation per IEC TR 62380. Currently, we are using your part number in our project, and we are planning to perform a FMEDA, for this we need to calculate the FIT contribution of this IC to our system. 

We have access already to the Functional Safety document TXB0104-Q1: Need to provide TXB0104-Q1 Functional Safety FIT Rate, FMD and Pin FMA - Logic forum - Logic - TI E2E support forums. However, we would like to know which are some parameters that were used to calculate the FIT rate, so we can recalculate the FIT with a different mission profile. 

The parameters we are interested in are:

λ1
λ2
N
α

Please, if you can help me providing this information will be greatly appreciated. 

Best regards, 

Josue Rojo