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LT3798 Isolated No Opto-Coupler Flyback Controller with Active PFC - Video Product Brief

Bruce Haug - Product Marketing Engineer Mar 6th 2012

The LT®3798 is a constant-voltage/constant-current isolated flyback controller that combines active power factor correction (PFC) with no opto-coupler required for output voltage feedback into a single-stage converter. A LT3798 based design can achieve a power factor of greater than 0.97 by actively modulating the input current, allowing compliance with most Harmonic Current Emission requirements. The LT3798 is well suited for a wide variety of off-line applications. The input range can be scaled up or down, depending mainly on the choice of external components. Efficiencies higher than 86% can be achieved with output power levels up to 100W. In addition, the LT3798 can easily be designed into high DC input applications.

LT3798 Isolated No Opto-Coupler Flyback Controller with Active PFC - Video Product Brief