LXD40-2220SW

LED Drivers

LED Drivers are important components of LED products by controlling the voltage and current to LED lighting. They provide constant current to ensure an acceptable illumination and prevent LED lamps from being damaged by voltage fluctuations. LED Drivers can also accelerate the industrial transformation from traditional lighting solutions to LED lighting.

The LXD40-2220SW is a multifunctional LED driver that provides constant voltage and constant current for LED lighting applications. The high power factor, wide input voltage and small size make it suitable for various applications. This model adopts synchronous rectification technology to reduce loss and improve efficiency.

Application Field

The LXD40-2220SW is suitable for LED applications, such as LED outdoor lighting, LED strips, LED lamps and LED modules, etc. It can be used in both indoor and outdoor applications because of its IP67 waterproof rating level. Additionally, it is also a good choice for DC power supplies that need high accuracy and stability.

Working Principle

The LXD40-2220SW uses a circuit structure of an isolated flyback topology. This topology consists of a switching transistor, an output diode, an energy storage inductor, an output filter, and a control circuit. When the voltage of the input power supply is steady, the MCU (microcontroller unit) receives current feedback information from the opto-coupler. After adjusting the ON and OFF times of the switching transistor according to the feedback information, the output current at the output terminal reaches a steady voltage.

It also supports light control signal input for dimming functions. The recognition signal is fed into the MCU through the signal processing circuit. The MCU will adjust the PWM duty cycle of the switching transistor to control the output current.

The LXD40-2220SW has wide range of protections, such as short circuit protection, over current protection, over temperature protection, input over voltage protection and so on. It is CE, CB, and ETL certified and meets the safety requirements of IEC/EN60335-1.

Conclusion

The LXD40-2220SW is a multifunction LED driver designed for high power LED lighting applications. Its wide input voltage range, high power factor, and IP67 waterproof rating make it suitable for use in both indoor and outdoor applications. In addition, it provides constant current output and has numerous protection functions, making it an ideal solution for driving high power LED lighting.