Hello,
I have the question about UCC28950.
Please see the attached files and the following as my questions.
2625.20141023_UCC28950.pdf
<Question 1>
Could you please let me know the calculation of R1 and R2 in the attached file?
<Question 2>
In the EVM Current sense is positive rail.
However, our customer use current trans on negative rail.
Are there any difference for current sense specification ?
<Question 3>
Our customer are using clamp circuit to EA+ pin for avoiding cycle-by-cycle current limit.
Then, current limit value is varied on each Vin.
We would like to fix the current limit value for each Vin.
Could you please let me know the countermeasure of this?
Best Regards,
Ryuji Asaka