MC33365
High Voltage Switching
Regulator
The MC33365 is a monolithic high voltage switching
regulator that is specifically designed to operate from a rectified 240 Vac line source.
This integrated circuit features an on−chip 700 V/1.
0 A SENSEFETt power switch, 450 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.
Protective features include cycle−by−cycle current limiting, input undervoltage lockout with hysteresis, bulk capacitor voltage sensing, and thermal shutd...