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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 features 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. Protective features include cycle?by?cycle current limiting, input undervoltage lockout with hysteresis, output overvoltage protection, and thermal shutdown. This device is available in a 16?lead dual?in?line and wide body surface mount packages.

Features

? 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

? Pb?Free Packages are Available*