NCP1217AD65R2GEnhanced PWM Current−Mode Controller for High−Power Universal Off−Line Supplies | |||
| Partnumber | Manufacturer | Quantity | Availability |
|---|---|---|---|
| NCP1217AD65R2G | 115 | In Stock | |
Description and Introduction
Enhanced PWM Current−Mode Controller for High−Power Universal Off−Line Supplies # Introduction to the NCP1217AD65R2G  
The **NCP1217AD65R2G** is a high-performance current-mode PWM controller designed for offline power supply applications. Manufactured by ON Semiconductor, this integrated circuit (IC) is widely used in switch-mode power supplies (SMPS) due to its efficiency, reliability, and advanced protection features.   Operating at a fixed switching frequency of **65 kHz**, the NCP1217AD65R2G ensures stable performance in flyback and forward converter topologies. It incorporates a **current-mode control architecture**, which enhances transient response and simplifies loop compensation. The device also features **built-in brown-out protection**, **overvoltage protection (OVP)**, and **overload protection**, making it suitable for robust power supply designs.   With a **low startup current** and **auto-recovery latch-off function**, the NCP1217AD65R2G minimizes power consumption while maintaining system safety. Its **high-voltage startup circuit** eliminates the need for an external bias winding, reducing component count and design complexity.   Ideal for **AC-DC adapters, LED drivers, and auxiliary power supplies**, the NCP1217AD65R2G offers a compact and cost-effective solution for energy-efficient power conversion. Its **8-pin SOIC package** ensures easy integration into various circuit layouts, making it a preferred choice for engineers seeking a reliable PWM controller. |
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Application Scenarios & Design Considerations
Enhanced PWM Current−Mode Controller for High−Power Universal Off−Line Supplies
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