Part Number: TL2845
Hi,
in TL2845 datasheet, we have "Operating free-air temperature" in recommended operating conditions.
And we have "Virtual junction temperature" in absolute maximum ratings.
My customer would like to know if it's okay to operate the device beyond "Operating free-air temperature" 85C and keep junction temperature below "Virtual junction temperature" 150C.
And how can we calculate junction temperature with ambient temperature.
We have offered "Junction-to-ambient thermal resistance" without specify the conditions, but this parameter should be a PCB dependent parameter.