Other Parts Discussed in Thread: UC2842A
My customer test the surface temperature of UC2842A and UCC2843A is greater than 85℃. And they calculate the junction temperature by the function--
Tj =Tc+PD*RθJC, where PD is the power consumption of the device. But they don't it can verify if the devices are working in a normal temperature range. Can you provide some comments on this?
|Rated working tempreature||37V||48V||57V|
Below is the power consumption for these two devices.
And Tj result is shown below.
|Rated Tj tempreature||37V||48V||57V|