XDPL8210 Digital Flyback Controller IC Infineon XDPL8210 Digital Flyback Controller IC features a high power factor, primary side regulated constant current output and LP mode. The XDPL8210 Digital Flyback Controller IC delivers high efficiency, a high power factor, and low harmonic distortion over a wide load range. The XDPL8210 has a reduction of cost, effort, and increased reliability due to the primary side control decreasing external components, mainly an optocoupler.