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NCP1351ADR2G from ON Pb-free,ON Semiconductor

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NCP1351ADR2G

Manufacturer: ON Pb-free

Variable Off Time PWM Controller

Partnumber Manufacturer Quantity Availability
NCP1351ADR2G ON Pb-free 2369 In Stock

Description and Introduction

Variable Off Time PWM Controller The **NCP1351ADR2G** is a highly efficient, fixed-frequency current-mode controller designed for offline power supply applications. This integrated circuit (IC) is engineered to provide robust performance in AC-DC converters, making it suitable for a wide range of power management solutions, including adapters, chargers, and auxiliary power supplies.  

Featuring a proprietary high-voltage startup circuit, the NCP1351ADR2G minimizes standby power consumption while ensuring reliable operation. Its fixed-frequency architecture enhances noise immunity and simplifies design implementation, particularly in flyback converter topologies. The IC incorporates essential protection mechanisms such as overvoltage protection (OVP), brownout detection, and latch-off functionality, ensuring system reliability under fault conditions.  

With an operating frequency that can be adjusted via external components, the NCP1351ADR2G offers flexibility in design while maintaining stable performance across varying load conditions. Its current-mode control ensures fast transient response and improved line regulation, making it an excellent choice for high-efficiency power supplies.  

Housed in a compact SOIC-8 package, the NCP1351ADR2G is well-suited for space-constrained applications. Its combination of performance, protection features, and ease of use makes it a preferred solution for designers seeking a dependable power management IC for offline applications.

Application Scenarios & Design Considerations

Variable Off Time PWM Controller
Partnumber Manufacturer Quantity Availability
NCP1351ADR2G ON 2377 In Stock

Description and Introduction

Variable Off Time PWM Controller **Introduction to the NCP1351ADR2G**  

The NCP1351ADR2G is a highly efficient, fixed-frequency current-mode controller designed for offline power supply applications. This integrated circuit (IC) is optimized for flyback converters, providing precise regulation and robust performance in AC-DC power conversion systems.  

Featuring a built-in high-voltage startup circuit, the NCP1351ADR2G minimizes external component count while ensuring reliable operation. Its fixed-frequency operation enhances noise immunity and simplifies EMI filtering, making it suitable for applications requiring stable power delivery.  

Key functionalities include adjustable soft-start, cycle-by-cycle current limiting, and brownout protection, ensuring safe operation under varying load conditions. The device also supports frequency jittering to reduce electromagnetic interference (EMI), further improving system reliability.  

With a wide operating voltage range and low standby power consumption, the NCP1351ADR2G is ideal for energy-efficient designs, such as adapters, auxiliary power supplies, and LED drivers. Its compact SOIC-8 package makes it suitable for space-constrained applications while maintaining thermal performance.  

Engineers favor this controller for its balance of simplicity, efficiency, and protection features, making it a dependable choice for modern power supply designs.

Application Scenarios & Design Considerations

Variable Off Time PWM Controller

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