BP2861X is a step-down LED constant current driver chip. Chip worker  In the critical continuous mode of inductor current, suitable for  Non isolated step-down type with full range input voltage of 85Vac~265Vac  LED constant current power supply.  The BP2861X chip integrates a five hundredV power switch internally and uses a gate  Demagnetization detection technology and high-voltage JFET power supply technology, no need for VCC electricity  The capacitance and starting resistor make its peripheral devices simpler and save peripheral resources  The cost and volume.  

The BP2861X chip adopts a built-in high-precision current sampling circuit and  Constant current control technology achieves high-precision LED constant current output and optimization  Different line voltage adjustment rate. The chip operates in the critical mode of inductor current  Formula, the output current does not vary with the inductance and LED operating voltage  And change to achieve excellent load adjustment rate.  BP2861X has multiple protection functions, including LED short circuit protection,  Chip power supply undervoltage protection, chip temperature overheating regulation, etc.  BP2861X adopts SOP7 packaging.

Application areas: LED candle lights, LED bulb lights, other LED lighting