Hi,
Our UC2845 is used as the contorller of a flyback.
When flyback works at 150W, the initial temperture is 35℃ and 88℃ after 15 minuters while other components around are cold.
So, why is the UC2845 so hot?
LY
This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
Hi,
Our UC2845 is used as the contorller of a flyback.
When flyback works at 150W, the initial temperture is 35℃ and 88℃ after 15 minuters while other components around are cold.
So, why is the UC2845 so hot?
LY
Hi,
The IC is hot because it is dissipating power.
You should measure the input current and voltage on VDD to calculate the power disspation
Regards
John