BP2373B is a high precision non-isolated APFC buck LED driver, specially designed for universal mains with constant current control. BP2373B operates in Critical Conduction Mode to reduce the switching loss and optimize the EMI.

BP2373B remove the VCC capacitor, COMP capacitor and Rcs resistor to simplify the external BOM. And it utilizes specific current detection, with few external components, it achieves high precision output current, excellent line regulation and load regulation.

BP2373B offers full of protection functions to improve the system reliability,including LED load short protection. The system reliability is further improved by the thermal regulation function. The output current is reduced when the driver is in condition of over temperature.