Part Number:UC2843A
Hi team,
Our customer using "UC2843AD8TR/TRG4,TI, SOIC-8, -40-85 ℃" now. The maximum working temperature is 85℃, and the junction temperature is up to 150 ℃. Their question is how can they evaluate the temperature stress of this IC.
1. if evaluating by the junction temperature(150 ℃), using the IC's surface as the temperature sample point, the result will be the shell temperature, and there is no way to measure the power consumption of IC. So it is difficult to calculate the junction temperature and to judge whether it exceeds 150 degrees.
2. If evaluating by the ambient temperature(85 ℃), how to test the ambient temperature? There is no way to quantify the working temperature and temperature sampling point around IC.
Can you kindly help me to answer this question ASAP?
Thanks & best regards