The IC component FSQ0370RNA is a highly integrated PWM controller designed for high-performance, offline switch mode power supplies (SMPS). It operates in a fixed frequency mode and offers several key features.
Firstly, the FSQ0370RNA incorporates a proprietary Green FPS technology, making it highly efficient and enabling it to comply with the most stringent energy-saving standards. This technology ensures low standby power consumption while maintaining high efficiency during normal operating conditions.
The device is capable of integrating all primary control functions including the PWM controller, high-voltage start-up, voltage feedback, and protection circuitry into a single chip. This integration minimizes the external component count, reduces the PCB footprint, and simplifies the overall system design.
The FSQ0370RNA also offers various protection features to safeguard the power supply and connected loads. It includes features like overvoltage protection (OVP), overload protection (OLP), over-temperature protection (OTP), and open-loop protection to prevent damage under fault conditions.
With a wide input voltage range of typically 85V to 265V AC, the FSQ0370RNA is suitable for a variety of applications and compatible with global mains voltages. It provides an adjustable switching frequency that can be customized to meet specific application requirements, allowing for optimization of system performance and EMI characteristics.
Furthermore, the IC utilizes frequency jittering to reduce EMI emissions and enhance system reliability
