UCC28513DW

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Power Factor Correction (PFC) is a process by which electrical energy is transferred from an electrical power source to a load at optimum efficiency and security. Power Factor Correction (PFC) is used for the control of quite a few different electrical Appliance, ranging from small home electricals such as lamps, fans and TVs to bigger industrial implementations such as motors, pumps and generators. It also has applications in energy storage devices such as batteries. PFC becomes pertinent when you try to eliminate harmonics or reduce the power losses incurred in transferring electrical energy from source to load.The UCC28513DW is a highly efficient, low-noise and high-voltage power factor control (PFC) integrated circuit (IC) designed specifically for mid-range and high-power applications. This allows the system to meet the global safety standards required in power conversion. It has an adjustable output power stage with 14-bit resolution and is capable of providing an output power up to 250 Watts. It also has built-in safety features including over-temperature, current (over-current and under-current) and voltage protections.The UCC28513DW IC offers wide versatility and scalability in design and implementation. It is suitable for a wide range of mid range to high power PFC applications, such as water heaters, ovens, HVAC systems, pumps and motors, smart grids and more. The UCC28513DW is also capable of accepting a large range of input power sources from both AC and DC sides.The UCC28513DW IC utilizes an optimized two-stage boost PFC design consisting of a single stage power factor correction (PFC) boost stage and a second stage power factor correction (PFC) flyback stage. In the PFC boost stage, the IC employs a close-loop control technique to regulate the average input current, in order to maintain the output voltage at its setpoint. In the PFC flyback stage, the IC uses a single-ended primary inductance converter (SEPIC) topology to deliver power to the load with high efficiency.The UCC28513DW also offers enhanced system reliability as it utilizes a multi-loop control structure. The implementation of the multi-loop control structure enables the device to have numerous safety features including over-temperature, over-current, and under-current protection. Additionally, the PFC IC also has a lossless gate drive feature which eliminates EMI emissions. This is especially important for products that must meet the stringent requirements of the global safety standards.In summary, the UCC28513DW is a high performance and reliable power factor control IC that is capable of operating from both AC and DC input sources. It offers high efficiency, low-noise and scalability in design, eliminating the need for multiple discrete components and saving PCB space. With its wide range of safe guards, reliability and cost effectiveness, it is a suitable choice for many common PFC applications.

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