The NCP1205P2 is a highly integrated power factor correction (PFC) controller IC component that is designed to improve the efficiency of AC/DC power supplies. This IC operates as a Critical Conduction Mode (CRM) PFC controller for power factor correction applications in the range of 50-350 W.
The NCP1205P2 offers several key features that make it a suitable choice for power factor correction applications:
1. High Integration: This IC integrates all the necessary functions required for a PFC controller, including a PFC controller, 500 V startup current source, error amplifier, PWM controller, and protections.
2. Critical Conduction Mode: The NCP1205P2 operates in Critical Conduction Mode (CRM), ensuring high efficiency and reduced power losses by enabling zero-voltage switching (ZVS) for the boost diode.
3. Direct Voltage Feedback: This IC utilizes a direct voltage feedback control loop, eliminating the need for current sensing components and simplifying the design.
4. Wide VCC Operating Range: The NCP1205P2 operates within a wide range of 9 V to 20 V, allowing flexibility in choosing the input voltage.
5. Programmable Switching Frequency: The switching frequency of the IC can be adjusted externally by connecting an external resistor, allowing customization as per the specific requirements of the application
