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MC33363A Series

High Voltage Switching Regulator

Manufacturer: ON Semiconductor

Catalog

High Voltage Switching Regulator

Key Features

Enhanced Power Capability Over MC33363
On-Chip 700 V, 1.5 A MOSFET 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

Description

AI
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 MOSFET 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.