The NCP1207DR2 is an integrated circuit (IC) component that is widely used in power management applications. It is a hysteretic controller specifically designed for controlling power factor correction (PFC) circuits in offline switch mode power supplies (SMPS).
Here are the key features of the NCP1207DR2:
1. PFC and PWM Control: The NCP1207DR2 combines power factor correction (PFC) and pulse width modulation (PWM) functions into a single IC. It allows for accurate control of the input current waveforms, resulting in high power factor correction and efficient operation.
2. Hysteretic Control: The IC utilizes a unique hysteretic control technique to regulate the output voltage. Hysteretic control compares the feedback voltage with a reference voltage and adjusts the switching frequency accordingly to maintain a stable output.
3. Quasi-Resonant Switching: The NCP1207DR2 incorporates quasi-resonant switching, which reduces the switching losses and overall power dissipation. This improves the efficiency and lowers the thermal stress on the components, ensuring a longer lifespan.
4. Wide Input Voltage Range: It supports a wide input voltage range, typically from 85V to 265V AC. This makes it suitable for various AC mains applications, including universal input voltage SMPS designs.
5. Built-in Protection Features: The IC includes several protection features to ensure safe and reliable operation of the power supply
