Texas Instruments High-Performance Analog PFC (Power Factor Correction) UC3852D

The UC3852D is a low-cost power factor correction (PFC) integrated circuit designed to improve the power factor of AC power systems. It achieves a power factor greater than 0.99, making it suitable for applications in the 50 to 500 watt range. The device utilizes zero-current switching boost conversion, which minimizes peak current and reduces the need for external components. Key features include controlled on-time boost PWM, under-voltage lockout, peak current limiting, and maximum frequency clamping. The UC3852D operates within a temperature range of 0¬8C to 70¬8C and is available in an 8-pin SOIC package. It is designed to drive high-current FETs with peak currents exceeding 500mA, while maintaining a compact design that facilitates easier line-noise filtering compared to other PFC solutions. Engineers looking for an efficient and cost-effective PFC solution may find the UC3852D to be a suitable choice for their projects.