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TCA9539-Q1: about power dissipation

Part Number: TCA9539-Q1

Hi, Support Team

we saw the TCA9539-Q1 functional safety FIT Rate, FMD and Pin FMA document:

TCA9539-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. A)

as below table, the Ambient temperature condition is 85deg?  

if any suggestion, Please advise me.

Thanks,

Best regards,

Lawrence