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WEBENCH® Tools/LM5160A: LM5160A CCM mode setting problem

udaykumar vangaveti
Prodigy 50 points
Part Number: LM5160A

Tool/software: WEBENCH® Design Tools

Hi,

I have designed isolated power supply (+15V and -8V outputs) using LM5160A shown below, the primary output at terminal 3 of the transformer is 7.5V. The FPWM pin is connected to Vcc to get CCM mode, but the IC output is always in DCM mode. It would be great if someone could help me to solve this problem.