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NCP1378DR2G from ON,ON Semiconductor

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NCP1378DR2G

Manufacturer: ON

PWM Current−Mode Controller for Free−Running Quasi−Resonant Operation

Partnumber Manufacturer Quantity Availability
NCP1378DR2G ON 120 In Stock

Description and Introduction

PWM Current−Mode Controller for Free−Running Quasi−Resonant Operation The **NCP1378DR2G** is a high-performance current-mode PWM controller designed for offline power supply applications. This integrated circuit (IC) is engineered to deliver efficient and reliable power conversion in flyback and quasi-resonant topologies, making it suitable for adapters, chargers, and auxiliary power supplies.  

Featuring a proprietary valley-switching mechanism, the NCP1378DR2G minimizes switching losses, improving overall efficiency while reducing electromagnetic interference (EMI). Its built-in protections include overvoltage (OVP), overload (OLP), and brownout detection, ensuring robust operation under varying load conditions.  

The controller operates in a fixed-frequency mode at light loads and transitions to a quasi-resonant mode at higher loads, optimizing performance across different power demands. With a wide input voltage range and low standby power consumption, the NCP1378DR2G meets modern energy efficiency standards.  

Housed in an SOIC-8 package, this component is compact and suitable for space-constrained designs. Its versatility and advanced control features make it a preferred choice for engineers developing cost-effective, high-efficiency power solutions.  

For detailed specifications, refer to the official datasheet to ensure proper implementation in your design.

Application Scenarios & Design Considerations

PWM Current−Mode Controller for Free−Running Quasi−Resonant Operation

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