Flyback Converter (57V@0.7A) for PoE Power Sourcing (PSE)
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The PMP5250 reference design uses the UCC28610 green-mode flyback controller to generate an isolated 57V/40W output from a universal AC input source. This supply is designed for use as a PoE power source. The maximum load efficiency approaches 90%, while the no load power consumption is less than 1/3W.