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NCP1377P from ON,ON Semiconductor

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NCP1377P

Manufacturer: ON

QR SMPS controller

Partnumber Manufacturer Quantity Availability
NCP1377P ON 775 In Stock

Description and Introduction

QR SMPS controller The **NCP1377P** is a high-performance current-mode PWM controller designed for offline power supply applications. This integrated circuit (IC) is optimized for flyback converters, offering precise regulation and efficient power management in AC-DC adapters, LED drivers, and auxiliary power supplies.  

Featuring a proprietary valley-switching operation, the NCP1377P minimizes switching losses by detecting the optimal moment to turn on the power MOSFET, enhancing overall efficiency. Its built-in brownout protection, overvoltage protection (OVP), and overload protection (OLP) ensure robust system reliability under varying input conditions.  

The controller operates in quasi-resonant mode at light loads, reducing audible noise and improving energy savings. With a fixed-frequency operation at higher loads, it maintains stable performance across a wide range of applications. The NCP1377P also includes a skip-cycle mode to further optimize efficiency during low-power standby modes.  

Designed for ease of implementation, the NCP1377P requires minimal external components, making it a cost-effective solution for compact power supplies. Its versatile design and advanced protection features make it suitable for industrial, consumer, and commercial power systems where efficiency and reliability are critical.  

For engineers seeking a dependable PWM controller for offline power conversion, the NCP1377P offers a balanced combination of performance, protection, and simplicity.

Application Scenarios & Design Considerations

QR SMPS controller

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