SKY81290-11-563LFJ

The SKY81290-11-563LFJ is a high power PWM LED driver with advanced efficiency, protection, reliability and robustness. It integrates various power management functions such as high efficiency power conversion, PWM dimming control, dynamic ac voltage monitoring, over-temperature and overvoltage protection, as well as dynamic power-sharing between multiple LED strings.

The SKY81290-11-563LFJ LED driver belongs to the PMIC (Power Management IC) LED driver family. It can drive multiple strings of LEDs with different configurations, up to 8 strings of 16V LED strings for point of load (POL) applications. It is primarily designed to support transformerless offline LED lighting products such as LED lamps, LED lanterns, and LED downlights.

The SKY81290-11-563LFJ implements a total of five power stages, which include a high efficiency PWM buck/boost converter IC, two low voltage buck-boost ICs, and two single cell LiPo battery chargers. In addition, the power stages feature integrated FETs and dedicated output stages to regulate the output voltage of each string. The buck/boost converter IC is the primary switch mode power supply and generates the input voltage for the low voltage stages. The low voltage stages are individually optimized for to regulate the output voltage of each string.

The SKY81290-11-563LFJ is also equipped with integrated protection functionalities to ensure safe and reliable operation, such as over-temperature and overvoltage protection, as well as 8 channels of current-limiting input protection. Furthermore, the SKY81290-11-563LFJ features wide dimming range up to 2000: 1, allowing for low power consumption, high system efficiency, and optimized power consumption.

In summary, the SKY81290-11-563LFJ LED driver is a robust, efficient and reliable PMIC solution for driving multiple strings of LEDs in a wide variety of point of load applications. The device offers high performance and features that enable designers to build highly efficient, reliable and robust LED lighting systems.