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 parator, 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 parator to minimize overshoot, a restart delay timer and cycle- by- cycle current limiting.
HIGH VOLTAGE GREENLINE™ POWER FACTOR CONTROLLER
SEMICONDUCTOR TECHNICAL DATA
16 1
P SUFFIX PLASTIC PACKAGE CASE 648 (DIP- 16)
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- Lossless Off- Line Startup Output Overvoltage parator Leading Edge Blanking (LEB) for Noise Immunity Watchdog Timer to Initiate Switching Restart Delay Timer
16 1
D SUFFIX PLASTIC PACKAGE CASE 751K (SO- 16)
PIN CONNECTIONS
5.0 Vref...
