Other Parts Discussed in Thread: UCC28710
I made a Flyback using UCC28710. It works well. I replaced the controller by UCC28720.
According to two datasheets, there is no many difference between two controllers such as maximum switching frequency. Then they must behave same.
However; at turn-off the waveform of VDS (VDrain-Source of MOSFET) is illustrated as above with the oscillation.
Is there anybody knows that phenomenon?