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PMIC - LED Drivers

FLS1800XS application field and working principle

It is well known that LEDs have the advantages of environmental protection, energy saving, long life, and are the most ideal light source for modern people. The corresponding LED drive power supply must be designed to ensure its normal operation, and the common LED Driver is MAIC-LED Driver. The FLS1800XS integrated circuit developed by Fudan Microelectronics is a high-efficiency LED Driver with a maximum output power of up to 1800 mA.

The FLS1800XS is a constant current output LED driver with a wide voltage range of 8 V to 42 V, a maximum output current of 1800 mA, and a maximum output power of up to 63 W. It has a range of protection functions including short circuit protection, over-Temperature protection, over-Voltage protection, super-low Voltage protection and so on. FLS1800XS is packaged in a standard SOP6 package.

The FLS1800XS upper constant current regulator is based on the current loop, and the current output signal is connected in a closed loop by means of the external sense resistor. There are multiple adjustment pins on the board. The output current signal can be adjusted by adjusting the external resistor value, or by adjusting the reference voltage through Rcomp, thereby making the current output value accurate and stable. The FLS1800XS also has an input voltage range of 8 V to 42 V. The output voltage is generally not required, and can be DC-DC power supply under OPEN circuit state, or lock voltage with wide voltage range.

In terms of the application field of FLS1800XS, the design of a constant current drive circuit for a single LED has become a popular industry solution. Due to its small size, high power efficiency, and wide voltage adaptation range, the FLS1800XS is suitable for applications in the field of industrial and commercial lighting, such as street lamps, tunnel lights, and decorative lighting. The design of the FLS1800XS also allows for high reliability, making it suitable for automotive lighting applications. In short, it is a cost-effective, efficient, high-performance driver solution with excellent characteristics.

In summary, FLS1800XS is a high-efficiency LED Driver with a maximum output power of up to 1800 mA. It has a wide voltage range of 8 V to 42 V and multiple protection functions. It is suitable for applications in the field of industrial and commercial lighting, such as street lamps, tunnel lights, and decorative lighting. It is also suitable for automotive lighting applications due to its high reliability.

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