MC33363A Motorola, MC33363A Datasheet
MC33363A
Available stocks
Related parts for MC33363A
MC33363A Summary of contents
Page 1
... Advance Information High Voltage Switching Regulator 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 ...
Page 2
... Line Regulation ( Input Bias Current ( 2.6 V) Open Loop Voltage Gain ( Gain Bandwidth Product (f = 100 kHz NOTES: 1. Maximum power dissipation limits must be observed. 2. Tested junction temperature range for the MC33363A: T low = – high = +125 C 2 MC33363A ...
Page 3
... TIMING RESISTOR (k ) MOTOROLA ANALOG IC DEVICE DATA MC33363A ( 390 pF, C Pin 8 = 1.0 F, for typical values Symbol Min – 2. – DC (max) ...
Page 4
... Phase –20 10 100 1 100 k f, FREQUENCY (Hz) Figure 7. Error Amplifier Small Signal Transient Response 1.80 V 1.75 V 1.70 V 1.0 s/DIV 4 MC33363A Figure 4. Maximum Output Duty Cycle 1.0 Figure 6. Error Amp Output Saturation 1.0 to 4.0 V –1 ...
Page 5
... 2.0 nF 2.4 1.6 0 SUPPLY VOLTAGE (V) MOTOROLA ANALOG IC DEVICE DATA MC33363A Figure 10. Peak Startup Current versus Power Supply Voltage Pulse tested with an on–time 300 s at < 1.0% duty cycle. The on–time is adjusted at Pin 1 for a maximum peak current out of Pin 3. ...
Page 6
... Power Switch Drain, and the ground potential on Pins 12 and 13. 16 Power Switch This pin is designed to directly drive the converter transformer and is capable of switching a Drain maximum of 700 V and 1 MC33363A Figure 16. P Suffix (DIP–16) Thermal Resistance and Maximum Power Dissipation versus P.C.B. Copper Length 2.8 100 2.4 80 2.0 Ï ...
Page 7
... Capacitor C T Compensation Oscillator Output PWM Comparator Output PWM Latch Q Output Power Switch Gate Drive Leading Edge Blanking Input (Power Switch Drain Current) MOTOROLA ANALOG IC DEVICE DATA MC33363A Figure 17. Representative Block Diagram Startup Input 1 Startup Control UVLO Overvoltage 14.5 V/ Protection 9.5 V Input 11 OVP 2 ...
Page 8
... Introduction The MC33363A represents a new higher level of integration by providing all the active high voltage power, control, and protection circuitry required for implementation of a flyback or forward converter on a single monolithic chip. This device is designed for direct operation from a rectified 240 Vac line source and requires a minimum number of external components to implement a complete converter ...
Page 9
... It is not intended to be used as a substitute for proper heatsinking. The MC33363A is contained in a heatsinkable plastic dual–in–line package in which the die is mounted on a special heat tab copper alloy lead frame. This tab consists of the four center ground pins that are specifically designed to improve thermal conduction from the die to the circuit board ...
Page 10
... UVLO 10 14 9 OVP 2 Driver LEB I Limit 2 IC1 MC33363A Figure 21. Converter Test Data Conditions = 1 5 5.0 mV Triangular = 2.0 mVpp, Spike = 32 mVpp Triangular = 2.0 mVpp, Spike = 34 mVpp 76.8%* 76. 2 5.05 V/3 C10 MBR T1 DC Output 330 ...
Page 11
... Figure 22. Printed Circuit Board and Component Layout Caution! High Voltages Line C2 Input MC33363A MOTOROLA ANALOG IC DEVICE DATA MC33363A (Circuit of Figure 20) C4 IC3 IC2 R2 C7 IC1 (Top View) 2.75” (Bottom View) DC Output ...
Page 12
... D 0.015 0.021 0.39 0.53 F 0.050 0.070 1.27 1.77 G 0.100 BSC 2.54 BSC H 0.050 BSC 1.27 BSC J 0.008 0.015 0.21 0.38 K 0.120 0.140 3.05 3.55 L 0.295 0.305 7.50 7. 0.200 BSC 5.08 BSC R 0.300 BSC 7.62 BSC S 0.015 0.035 0.39 0.88 Mfax is a trademark of Motorola, Inc. MC33363A/D MOTOROLA ANALOG IC DEVICE DATA ...