The BP3166XH is a high precision primary-sidefeedback and regulation controller for LED lighting, itoperates in constant current control mode and isdesigned to work in inductor current discontinuousconduction mode and especially suitable for flybackconvertor under universal input.
The BP3166XHintegrates a 600v/650V power MOSFETwith gate MOSFET driving technique.lt doesn’t needthe auxiliary winding for vCC supply. lt can achieveexcellent constant current performance with very fewexternal components, so the system cost and size areminimized.
The BP3166XH offers rich protections to improve thesystem reliability,including LED short circuitprotection, thermal regulation function.