The NCP1071P065G is an integrated circuit (IC) component manufactured by ON Semiconductor. It is designed specifically as a controller for low-power off-line power supplies.
Key features of the NCP1071P065G include:
1. Integrated Power Switch: The IC incorporates a 650 V MOSFET power switch, eliminating the need for an external switch. This helps to simplify the design and reduce component count.
2. Quasi-Resonant Operation: The NCP1071P065G utilizes a quasi-resonant control scheme that enables high efficiency and reduced switching losses. This feature contributes to enhanced overall system performance and reduced power consumption.
3. Frequency Hopping: The IC includes a frequency hopping feature that spreads the EMI (electromagnetic interference) emissions over a wide frequency range, minimizing the impact on other sensitive devices and reducing EMI filtering requirements.
4. Built-in Protections: The IC offers various protection features to ensure reliable operation. These include overvoltage protection (OVP), overcurrent protection (OCP), over-temperature protection (OTP), and brown-in/brown-out protection. These protections not only enhance system safety but also help to prolong the overall lifespan of the power supply.
5. Dynamic Self-Supply: The NCP1071P065G offers dynamic self-supply functionality, meaning it can internally power itself during normal operation without requiring an external auxiliary power supply. This feature simplifies the design and reduces system cost
