View mc33368r datasheet:

Order this document by MC33368/D MC33368 Advance Information HIGH VOLTAGE High Voltage GreenLine? GREENLINE? POWER Power Factor Controller FACTOR CONTROLLER The MC33368 is an active power factor controller that functions as a SEMICONDUCTOR boost preconverter in off–line power supply applications. MC33368 is TECHNICAL DATA optimized for low power, high density power supplies requiring a minimum board area, reduced component count and low power dissipation. The narrow body SOIC package provides a small footprint. Integration of the high voltage startup saves approximately 0.7 W of power compared to resistor bootstrapped circuits. The MC33368 features a watchdog timer to initiate output switching, a one quadrant multiplier to force the line current to follow the instantaneo