HR2000GS

The PFC function in the HR2000 uses only four pins.

The main function of the HR2000 described in the document is to act as a fluorescent lamp ballast controller with PFC function and a high voltage half-bridge driver. It can properly drive the two MOSFETs of the half-bridge to control the fluorescent lamp, ensuring all the necessary features simultaneously. The HR2000 offers cost-effective solutions with minimized external components and programmable operating frequency. It also controls the sweeping frequency to limit the preheat current and allows for smart setting of preheat time and ignition time for different types of lamps and applications. Additionally, it provides sufficient protection features.

The HR2000 provides protection functions for different fault modes such as over voltage, over current, over temperature, capacitive mode, and end of life (EOL) .