UCC28511N

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PMIC - PFC (Power Factor Correction) is one of the most popular fields in the power management and control industry. The UCC28511N controller is a particular type of highly reliable, high integration, and low cost Power Factor Correction (PFC) device. This device is designed to optimize the performance of power factor correction (PFC) stages in ac/dc and dc/dc converters.

The UCC28511N device can work in both Leading and Trailing-Edge PFC applications without the need of additional components. This device also incorporates a dedicated true average current mode control (TACC) loop, which provides superior performance over other types of control methods. Moreover, the UCC28511N is extremely flexible and has the capacity to be programmed and configured to meet the specific design requirements of a wide range of applications.

The UCC28511N solution works by continuously adjusting the voltage of the input power to the output power in order to minimize distortions and achieve optimal power factor and power quality levels. The device has a variety of features that allow it to monitor power changes across the power line, enabling it to protect itself from incorrect voltages and over- or under-voltages.

The UCC28511N can provide a high power factor of up to 99%. It can also support a wide range of input line voltages ranging from 85V to 250VAC and deliver output power levels of up to 3kW. This makes it ideal for use in heavy-duty appliances, household appliances, and industrial equipment. Additionally, the device can be used in remote monitoring and metering systems, due to its flexibility and adaptability.

In terms of working principle, the UCC28511N operates using a true average current mode control (TACC) loop. This control loop continuously adjusts the voltage of the input power and the output power to minimize distortion and ensure optimal power factor. The TACC loop uses a reference signal provided by an internal or external oscillator and constantly adjusts it to achieve the desired power factor. In order to maintain the reference signal, the UCC28511N features power compensation and frequency enhancement features.

The UCC28511N is highly efficient and can reach efficiency levels of up to 99%. This makes it suitable for applications that require high power factor correction. The device also offers a wide range of protection features such as input line over-current and surge protections and soft-start and current limiting, which protect the circuit from abnormal operations. In addition, the UCC28511N features a shutdown mode, which allows the user to control the power system without causing any damages to the load.

In summary, the UCC28511N is an effective and efficient Power Factor Correction controller that can be used in a wide range of applications. This device offers a variety of features and protections that ensure the longevity and operation of the device. Its true average current mode control loop and flexible programmable features make it a great choice for any application that requires power factor correction.

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