UC3853DG4

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Power Factor Correction (PFC) is a technology used to improve the efficiency and power quality of electrical systems. The UC3853DG4 is a dedicated PFC controller that helps optimize and regulate the power factor of the electrical grid. The device integrates an on-board MOSFET and gate driver, allowing it to operate directly with a power MOSFET in an off-line PFC application, saving design costs and improving design efficiency.

The UC3853DG4 bases its PFC scheme on a self-oscillating transition mode topology. In this topology, a MOSFET switch is used as the main power switch, driven by voltage and current feedback signals. The voltage is sensed through a voltage sense resistor and the current, through a current-sensing resistor. A Boost inductor, input and output capacitors and a comparator between the voltage feedback and the current line signals completes the boost circuit.

The UC3853DG4 is designed to operate from a wide input voltage range of 90V AC to 265V AC. The on-board high-voltage MOSFET is capable of driving up to 700V and 25A switches, allowing for high power density and enhancing the system reliability. The device provides a number of features to optimize system performance, including Burst Mode operation for light-load efficiency, allowing for improved system efficiency and reduced power loss.

The UC3853DG4 is a reliable, cost-effective and easy to use controller designed for offline PFC applications from 90V AC to 265V AC. It operates in transition mode, using an on-board MOSFET and gate driver, saving design and production costs while providing improved performance and increased system reliability and efficiency.

The specific data is subject to PDF, and the above content is for reference