NCP1076AAP065G

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The NCP1076AAP065G is an integrated AC/DC converter and offline switch power management circuit (PMIC) from ON Semiconductor. Its features and performance make it suitable for a broad range of application fields and conditions. This article will provide an overview of the application areas and working principle of NCP1076AAP065G, providing an insight into the reasons why it is suitable for specific applications.

General Use Cases of NCP1076AAP065G

The NCP1076AAP065G is a feature-rich PMIC designed to suit a wide range of applications. It is optimized to power low-power applications such as LED lighting, toys, and white goods, by providing key features such as low-ripple output, no-load power consumption, and high efficiency. It is suitable for various conditions such as wide input voltage ranges, and is well-suited for outdoor applications. It also provides protection against common electrical events such as over-voltage, over-temperature, and over-current.

The part is built using highly reliable, high-performance components and is rated for a maximum output power of 24W. This makes it ideal for applications where an energy-efficient, reliable power supply with a minimum of fuss is required, such as street and security lighting, industrial and consumer electronic devices, consumer sports and fitness products, and home automation systems.

Working Principle of NCP1076AAP065G

The NCP1076AAP065G is an AC/DC converter and offline switch power management IC. It is a single-stage circuit with a PWM controller and synchronous rectification. It integrates a high-voltage start-up circuit, a synchronous buck regulator, a PFC controller, and other features into a single component. It is optimized for applications with very low standby power needs, such as LED lighting, where the line power can be switched without interruption.

In operation, the NCP1076AAP065G detects when there is an AC power supply present, and it begins to control the voltage of the AC supply. It then switches in the buck regulator to reduce the voltage until the predetermined regulated value is achieved. The regulator operates in synchronous mode, which reduces the complexity of the circuit, minimizes power losses, improves efficiency, and reduces electromagnetic interference.

The NCP1076AAP065G is a highly efficient device with a maximum efficiency of 96%. This is achieved by its low-ripple output of <1%. The excellent ripple rejection performance helps to minimize conducted and radiated EMI. Other features such as adjustable soft start, frequency fold-back, and thermal shutdown provide additional protection and user control.

Conclusion

The NCP1076AAP065G is a highly versatile AC/DC converter and offline switch power management IC suitable for a wide range of applications. Its features make it suitable for powering low-power applications such as LED lighting and white goods, with a high level of efficiency and protection. Its single-stage synchronous buck regulator minimizes power losses and provides excellent ripple rejection.

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