Texas Instruments High-Performance Analog PFC (Power Factor Correction) UC2853ADTR

The UC2853ADTR is an 8-pin Power Factor Correction (PFC) integrated circuit designed for high-performance applications. It features a simplified architecture that reduces the need for external components, making it suitable for compact designs. The device operates with an internal 75kHz oscillator that can be synchronized with downstream converters, enhancing system efficiency. This IC employs average current mode PWM control with RMS line voltage compensation, which helps maintain consistent loop gain despite variations in input voltage, thereby minimizing input line current distortion. It includes a precision multiplier/squarer/divider circuit, voltage and current loop error amplifiers, and an overvoltage protection comparator. The UC2853ADTR is specified for operation within a temperature range of -25¬8C to +85¬8C and supports a supply voltage of up to 40V. It is available in both plastic and ceramic dual in-line packages (DIP) as well as small outline (SOIC) packages, providing flexibility for various applications. The device is suitable for engineers looking for a reliable and efficient solution for power factor correction in their designs.