Could you please teach us?
Which Tj(MAX) should we use for the Pd calculation
of CD4049UB? 125 deg.? Or, 150 deg.?
I know we must use 125deg. to the
Tj(MAX) for Pd(MAX) calculation usually.
However,the maximum operating
temperature of CD4049UB is 125deg..
If Tj(MAX) is 125deg., Pd(MAX) becomes 0W
when TA=125deg..
Best Regards,