UCC28528DW

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The UCC28528DW is a PMIC - PFC (Power Factor Correction) device designed to provide high power factor performance and protection for boost power factor correction, buck converters, and isolated flyback converters. It integrates a high-efficiency MOSFET class-E modulator, compensation networks, and an advanced control algorithm to provide an integrated power factor correction solution. The UCC28528DW provides an efficient and reliable solution for the correction of harmonics and distortion in the power line, resulting in improved system performance and reliability. It is one of the most popular solutions for power factor correction.

The UCC28528DW has a wide application field in industrial, automotive, communication, and consumer applications. It is used to control power factor correction in power supplies, UPS systems, CPU and FTTH systems, and more. The device has a wide range of features, including high efficiency and wide-input voltage range (16V-700V) boost PFC controller with low EMI filter and low component count, as well as high power density and high power factor. In addition, it has adjustable soft-start and adjustable compensation time for enhanced EMI reduction.

The UCC28528DW works by detecting current and voltage waveforms, measuring their harmonic distortion and outputting signals for PFC correction. The device monitors the input current waveform and adjusts the output voltage until the desired power factor is achieved. When the input current and voltage waveforms match, the system is said to have achieved unity power factor. The device is capable of detecting and correcting up to THD = 12%, enabling a wide array of power factor correction solutions. Additionally, the device protects against over-voltage, over-current and overheating, improving system reliability.

The UCC28528DW features advanced digital control to achieve high levels of accuracy in power factor correction. The internal oscillator controls the frequency of the control loop and the device can adjust the control loop frequency to the maximum that the system will support. This speeds up the response time and improves the overall efficiency of the system. The digital control also makes the device easier to set up and calibrate.

The UCC28528DW is a versatile, reliable solution for power factor correction and is a great choice for both industrial and consumer applications. The device\'s high power density, high power factor and wide input voltage range make it suitable for a wide range of applications. Its advanced digital control and protection features provide improved system reliability and performance. The device is easy to set up and provides highly accurate power factor correction.

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