How do I determine the peak voltage on the Flyback MOSFET Q1 for a CY8CLEDAC02 and a CY8CLEDAC03 design?

Question: How do I determine the peak voltage on the Flyback MOSFET Q1 for a CY8CLEDAC02 and a CY8CLEDAC03 design?

 

Answer:

Question: How do I determine the peak voltage on the Flyback MOSFET Q1 for a CY8CLEDAC02 and a CY8CLEDAC03 design?

The peak voltage on Q1 is a function of the transformer turns ratio (Ntr) and peak input voltage. The attached file gives calculations you can use to determine the peak voltage for Q1.

Attachment: Q1 peak voltage calculation.docx