MC33363A

Features:

• Enhanced Power Capability Over MC33363
• OnChip 700 V, 1.5 A SenseFET Power Switch
• Rectified 240 Vac Line Source Operation
• OnChip 500 V Active OffLine Startup FET
• Latching PWM for Double Pulse Suppression
• CycleByCycle Current Limiting
• Input Undervoltage Lockout with Hysteresis
• Output Overvoltage Protection Comparator
• Trimmed Internal Bandgap Reference
• Internal Thermal Shutdown


Pinout




Specifications

Rating	Symbol	Value	Unit
Power Switch (Pin 16) Drain Voltage Drain Current	VDS IDS	700 1.5	V A
Startup Input Voltage (Pin 1, Note 1) Pin 3 = Gnd Pin 3 1000 F to ground	Vin	400 500	V
Power Supply Voltage (Pin 3)	VCC	40	V
Input Voltage RangeVoltage Feedback Input (Pin 10) Compensation (Pin 9) Overvoltage Protection Input (Pin 11) R (Pin 6) TCT (Pin 7)	VIR	1.0 to Vreg	V
Thermal Characteristics P Suffix, DualInLine Case 648E Thermal Resistance, JunctiontoAir Thermal Resistance, JunctiontoCase (Pins 4, 5, 12, 13)DW Suffix, Surface Mount Case 751N Thermal Resistance, JunctiontoAir Thermal Resistance, JunctiontoCase (Pins 4, 5, 12, 13) Refer to Figures 15 and 16 for additional thermal information.	RJA RJC RJA RJC	80 15 95 15	°C/W
Operating Junction Temperature	T J	25 to +150
Storage Temperature	T stg	55 to +150

Description

The MC33363A is a monolithic high voltage switching regulator that is specifically designed to operate from a rectified 240 Vac line source. MC33363A features an onchip 700 V/1.5 A SenseFET power switch, 500 V active offline 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 cyclebycycle current limiting, input undervoltage lockout with hysteresis, output overvoltage protection, and thermal shutdown. MC33363A is available in a 16lead dualinline and wide body surface mount packages.