The NCP1013AP133G is an integrated circuit (IC) component developed by ON Semiconductor. It belongs to the NCP1013 series, which are high-performance, fixed-frequency current-mode controllers designed for offline power converters. This IC is specifically designed for power management applications and includes various key features. Here is a detailed overview of the NCP1013AP133G and its significant features:
1. Current-Mode Control: The NCP1013AP133G operates on a current-mode control principle, which regulates the output voltage by adjusting the duty cycle of the power switch. This control scheme ensures stable and accurate voltage regulation, making it suitable for a wide range of power conversion applications.
2. Fixed Frequency Operation: It operates at a fixed frequency, typically around 65 kHz, ensuring consistent performance and simplifying the design process.
3. Integrated High-Voltage Startup Circuit: The IC comprises an integrated high-voltage startup circuit, which allows it to operate directly from the rectified mains voltage (typically 85 V AC to 265 V AC). This feature eliminates the need for external startup circuitry, reducing the overall component count and cost.
4. Internal Leading Edge Blanking (LEB): The NCP1013AP133G incorporates an internal leading edge blanking, which ensures accurate current sensing by ignoring and blocking the current sense signal during the leading edge of the current waveform. This feature prevents false triggering and enhances noise immunity
