The FAN7527BN is an Integrated Circuit (IC) component designed for use in Power Factor Correction (PFC) applications. This IC is specifically tailored towards continuous conduction mode boost PFC circuits used in switching power supplies. It incorporates several features and functionalities that make it an ideal choice for power factor correction applications.
Key features of the FAN7527BN include:
1. High Accuracy: The IC offers precise control of the boost PFC converter, ensuring efficient power factor correction and accurate output voltage regulation.
2. Critical Conduction Mode (CRM): FAN7527BN enables critical conduction mode operation, which enables low switching loss, improved efficiency, and reduced electromagnetic interference (EMI).
3. Current Sensing and Limiting: It incorporates a current sensing function that accurately monitors and limits the inductor current, preventing overloading and improving reliability.
4. Internal Start-up Circuit: The IC features an internal high-voltage start-up circuit, eliminating the need for an external biasing circuit, reducing component count, and increasing design simplicity.
5. Over Voltage Protection (OVP): It includes an OVP circuit that safeguards against excessive output voltages, providing enhanced protection for connected loads.
6. Soft Start: FAN7527BN includes a soft start function that gradually ramps up the output voltage during startup, reducing stresses on both the IC and connected components
