High Voltage Switching Reaulator
•Enhanced Power Capability Over MC33363
•On–Chip 700 V, 1.5 A SenseFET Power Switch
•Rectified 240 Vac Line Source Operation
•On–Chip 500 V Active Off–Line Startup FET
•Latching PWM for Double Pulse Suppression
•Cycle–By–Cycle Current Limiting
•Input Undervoltage Lockout with Hysteresis
•Output Overvoltage Protection Comparator
•Trimmed Internal Bandgap Reference
•Internal Thermal Shutdown
Feature
The MC33363A is a monolithic high voltage switching regulator that is specifically designed to operate from a rectified 240 Vac line source. This integrated circuit an on–chip 700 V/1.5 A SenseFET power switch, 500 V active off–line startup FET, duty cycle controlled oscillator, current
limiting comparator with a programmable threshold and leading edge blanking, latching pulse width modulator for double pulse suppression, high gain error amplifier, and a trimmed internal bandgap reference.
