The FSQ500N is an integrated circuit (IC) component that belongs to the FSQ family of power supply controller chips. It is specifically designed for use in switching mode power supplies (SMPS) in various applications. The IC is manufactured by Fairchild Semiconductor, which is now a part of ON Semiconductor.
The FSQ500N offers a range of key features that make it suitable for use in offline flyback converters and other types of power supplies. These features include:
1. High Integration: The FSQ500N integrates several functions into a single chip, reducing the need for external components and simplifying overall system design. This integration helps in saving space on the PCB.
2. Primary-Side Regulation (PSR): The IC incorporates a PSR controller, eliminating the need for an optocoupler or secondary feedback circuitry. This simplifies the overall design and enhances reliability.
3. Constant Voltage (CV) and Constant Current (CC) Control: The FSQ500N offers precise control over both voltage and current output. This enables stable and accurate power delivery to the load.
4. Protections: The IC includes robust protection features such as overvoltage protection (OVP), overcurrent protection (OCP), and over-temperature protection (OTP). These protections ensure safe and reliable operation even in adverse conditions
