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SG3845DM Datasheet(PDF) 6 Page - Microsemi Corporation |
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SG3845DM Datasheet(HTML) 6 Page - Microsemi Corporation |
6 / 12 page C URRENT -M ODE PWM C ONTROLLER SG1844/SG1845 Series PRODUCT DA T ABOOK 1996/1997 Copyright © 2000 Rev. 1.4 4/00 6 P RODUCTION D ATA S HEET GRAPH / CURVE INDEX Characteristic Curves FIGURE # 1. DROPOUT VOLTAGE vs. TEMPERATURE 2. OSCILLATOR TEMPERATURE STABILITY 3. CURRENT SENSE TO OUTPUT DELAY vs. TEMPERATURE 4. START-UP CURRENT vs. TEMPERATURE 5. REFERENCE VOLTAGE vs. TEMPERATURE 6. START-UP VOLTAGE THRESHOLD vs. TEMPERATURE 7. START-UP VOLTAGE THRESHOLD vs. TEMPERATURE 8. OSCILLATOR DISCHARGE CURRENT vs. TEMPERATURE 9. OUTPUT SATURATION VOLTAGE vs. OUTPUT CURRENT AND TEMPERATURE (SINK TRANSISTOR) 10. CURRENT SENSE THRESHOLD vs. ERROR AMPLIFIER OUTPUT 11. OUTPUT SATURATION VOLTAGE vs. OUTPUT CURRENT AND TEMPERATURE (SOURCE TRANSISTOR) FIGURE INDEX Application Information FIGURE # 12. OSCILLATOR TIMING CIRCUIT 13. OSCILLATOR FREQUENCY vs. R T FOR VARIOUS CT Typical Applications Section FIGURE # 14. CURRENT SENSE SPIKE SUPPRESSION 15. MOSFET PARASITIC OSCILLATIONS 16. BIPOLAR TRANSISTOR DRIVE 17. ISOLATED MOSFET DRIVE 18. ADJUSTABLE BUFFERED REDUCTION OF CLAMP LEVEL WITH SOFTSTART 19. EXTERNAL DUTY CYCLE CLAMP AND MULTI-UNIT SYNCHRONIZATION 20. OSCILLATOR CONNECTION 21. ERROR AMPLIFIER CONNECTION |
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