Cxle8267 cxle8267g cxle8267h is a constant current driver chip supporting PWM dimming and high precision step-down led. Suitable for 85vac ~ 265vac full range input voltage non isolated step-down LED constant current power supply. Cxle8267 cxle8267g cxle8267h chip is internally integrated with 550V power switch. It adopts patented drive and current detection mode. The working current of the chip is very low, without auxiliary winding detection and power supply, and only a few peripheral components are needed, so it can achieve excellent constant current characteristics, greatly saving the system cost and volume. The cxle8267 cxle8267g cxle8267h chip is equipped with high-precision current sampling circuit, and adopts patented constant current control technology to achieve high-precision LED constant current output and excellent line voltage regulation rate. The chip works in the inductive current critical mode, the output current does not change with the inductance and the LED working voltage, achieving excellent load regulation. Cxle8267 cxle8267g cxle8267h has multiple protection functions, including LED short circuit protection, CS resistance short circuit protection, undervoltage protection, etc. Cxle8267 cxle8267g cxle8267h has precise overheat regulation function to reduce the output current when the drive power is overheated