CXLE86126/CXLE86127/CXLE8416/CXLE8417 is a single-stage, high-precision primary-side feedback LED constant current control chip with active power factor correction. It is suitable for flyback isolated LED constant current power supply with 85Vac ~ 265Vac full range input voltage. CXLE86126/CXLE86127/CXLE8416/CXLE8417 products integrate active power factor correction circuit, can achieve very high power factor and very low total harmonic distortion. Due to the work in the critical continuous mode of inductor current, the power MOS tube is in the zero current turn-on state, the switching loss is reduced, and the utilization rate of the transformer is also high. CXLE86126/CXLE86127/CXLE8416/CXLE8417 products work in the primary feedback mode, without secondary feedback circuit, can achieve high-precision output constant current control, saving system cost and volume, improve the reliability of the system. CXLE86126/CXLE86127/CXLE8416/CXLE8417 products internal integration of 650V/700V power MOSFET, only a few peripheral devices, saving the system cost and volume, improve the reliability of the system. The CXLE86126/CXLE86127/CXLE8416/CXLE8417 product line has excellent voltage regulation rate and load regulation rate parameters, while the line voltage compensation coefficient can also be flexibly adjusted by external components. CXLE86126/CXLE86127/CXLE8416/CXLE8417 products have built-in multiple protection functions to enhance system reliability, including LED open circuit protection, LED short circuit protection, chip power supply overvoltage protection, undervoltage protection, current sampling resistor open circuit protection and cycle-by-cycle current limiting. All protection has an automatic restart function. In addition, the CXLE86126/CXLE86127/CXLE8416/CXLE8417 products have an overheat adjustment function, which reduces the output current when the drive power supply is overheated to improve the reliability of the system.
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[ CXLE86127 ]"
