Part Number: PMP20588
Good morning,
I'm developing some isolated flyback supplies and I'm using the PMP20588 as a reference. I actually designed and built up a small board with the reference design (with all of the components under the transformer) for evaluating the LM5022 and it works great, my problem is with the simulation I'm trying to create to use in parallel so that before I design an actual supply I can make some estimates of component power consumption at various loads. In my simulation, the CS signal goes too high during switching and the duty cycle of the output is cut down as a result. The output on my board looks great at full load (54V, 600mA), I just can't seem to get the simulation to function as well. I'm not sure where my problem is, it seems like the current through the FET isn't realistically modeled? I'm just not sure, I've attached the simulation below. Thanks for your time!
Kind regards,
-Steve
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