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Partname:MC33368D
Description:High Voltage GreenLine Power Factor Controller
Manufacturer:ON Semiconductor
Package:SOIC
Pins:16
Datasheet:PDF (476K).
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The MC33368 is an active power factor controller that functions as a boost preconverter in offline power supply applications. MC33368 is 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 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 include an output overvoltage comparator to minimize overshoot, a restart delay timer and cyclebycycle current limiting. Lossless OffLine Startup

Click here to download MC33368D Datasheet
Click here to download MC33368D Datasheet
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