Rochester Electronics PMIC - PFC (Power Factor Correction) UCC28050D

The UCC28050D is a transition mode Power Factor Correction (PFC) controller designed for low-to-medium power applications that require compliance with IEC 1000-3-2 harmonic reduction standards. It operates in a boost preregulator configuration and features a transconductance voltage amplifier for feedback error processing, a PWM comparator, and a totem-pole driver for external FET control. The device includes protections such as overvoltage protection (OVP), zero power detection to prevent overvoltage during light load conditions, and two under-voltage lockout (UVLO) options. It is capable of delivering a peak gate drive current of ¬±750 mA and operates with low start-up and operating currents. The UCC28050D is available in an 8-pin SOIC package and is suitable for applications including single-stage PFC flyback converters, electronic ballasts, and power supplies for desktops and AC adapters. The operating temperature range is from -40¬8C to 105¬8C, making it versatile for various environmental conditions.