Part Number:TIDA-01505
Hi,
1) I assume that this IC (UCC28C43-Q1) is a fixed frequency (based on RT/CT external values). How the duty cycle is getting varied in this device. Please provide the graphs which has the relations between FB value, duty cycle.
2) In the below reference circuit diagram, I am unable to understand the highlighted section. What is the purpose of the Transistor circuit. (Q15).
