Datasheet4U Logo Datasheet4U.com

MC33368 Datasheet High Voltage Greenlinee Power Factor Controller

Manufacturer: Motorola Semiconductor (now NXP Semiconductors)

Overview: Order this document by MC33368/D MC33368 Advance Information High Voltage GreenLine™ Power Factor Controller The MC33368 is an active power factor controller that functions as a boost preconverter in off–line power supply applications. MC33368 is optimized for low power, high density power supplies requiring a minimum board area, reduced ponent 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 pared to resistor bootstrapped circuits.

Key Features

  • a watchdog timer to initiate output switching, a one quadrant multiplier to force the line current to follow the instantaneous line voltage a zero current detector to ensure critical conduction operation, a transconductance error amplifier, a current sensing comparator, a 5.0 V reference, an undervoltage lockout (UVLO) circuit which monitors the VCC supply voltage and a CMOS driver for driving MOSFETs. The MC33368 also includes a programmable output switching frequency clamp. Protection features.

MC33368 Distributor