I am considering designing an LLC at high frequencies using the UCC25640 device.
The purpose is to reduce the size of the circuit. The switching frequency is assumed to be 300kHz to 1MHz.
So I would like to ask you a question about transformer.
If the transformer is miniaturized, it will be difficult to make the leakage inductance with one transformer, and it will be necessary to make another inductor, so there is a concern that it may go against the miniaturization.
I would appreciate it if you could give me your opinion on the above.
I have one more question.
The UCC25640 has a high-side driver inside the IC, but is there any problem with the drive capability even if the frequency rises to 500kHz?