MC33365

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 shutdown. This device is available in a 16−lead dual−in−line package. On−Chip 700 V, 1.0 A SENSEFET Power Switch Rectified 240 Vac Line Source Operation On−Chip 450 V Active Off−Line Startup FET Latching PWM for Double Pulse Suppression Cycle−By−Cycle Current Limiting Input Undervoltage Lockout with Hysteresis Bulk Capacitor Voltage Comparator Trimmed Internal Bandgap Reference Internal Thermal Shutdown 16 1 http://onsemi.com MARKING DIAGRAM 16 PDIP−16 P SUFFIX CASE 648E MC33365P AWLYYWW 1 A = Assembly Location WL = Wafer Lot YY = Year WW = Work Week PIN CONNECTIONS Startup Input 1 16 Power Switch Drain AC Input Startup Input 1 Regulator Output 8 6 RT CT 7 Mirror Osc PWM Thermal Startup Reg UVLO VCC 3 PWM Latch S Driver Q R BOK BOK 11 16 Power Switch ...