BP2866B is a high precision buck type LED constant current driver chip. The chip works in the inductive current critical continuous mode, which is suitable for the non-isolated step-down LED constant current power supply with the full range of input voltage from 85Vac to 265Vac.
The BP2866B chip integrates 500V power switch, adopts patented demagnetization detection technology and high voltage JFET power supply technology, and does not need VCC capacitor and start resistance, making its peripheral devices simpler and saving the cost and volume of the peripheral.