Digital flyback high power factor XDP™ control IC for cost-effective LED drivers with constant current output and primary-side regulation The XDP™ control IC XDPL8210 is a digital, single-stage, quasi-resonant flyback controller with high power factor and high precision primary-side controlled constant current output. Main application fields for XDPL8210 control IC are cost-effective, constant current, single-stage LED drivers. XDPL8210 provides an easy way to design high performance LED drivers with various features. Sophisticated algorithms feature flicker-free dimming below 1%, supporting IEC61000-3-2 Class C designs over wide load range.