SG1842(2000) 查看數據表（PDF） - Microsemi Corporation

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SG1842
(Rev.:2000)

CURRENT MODE PWM CONTROLLER

Microsemi Corporation 

PRODUCT DATABOOK 1996/1997

SG1842/SG1843 Series

CURRENT-MODE PWM CONTROLLER

PRODUCTION DATA SHEET

GRAPH / CURVE INDEX

Characteristic Curves

FIGURE #

1. DROPOUT VOLTAGE vs. TEMPERATURE

2. OSCILLATOR TEMPERATURE STABILITY

3. CURRENT SENSE TO OUTPUT DELAY vs. TEMPERATURE

4. OUTPUT DUTY CYCLE vs. TEMPERATURE

5. START-UP CURRENT vs. TEMPERATURE

6. REFERENCE VOLTAGE vs. TEMPERATURE

7. START-UP VOLTAGE THRESHOLD vs. TEMPERATURE

8. START-UP VOLTAGE THRESHOLD vs. TEMPERATURE

9. OSCILLATOR DISCHARGE CURRENT vs. TEMPERATURE

10. OUTPUT SATURATION VOLTAGE vs. OUTPUT CURRENT AND

TEMPERATURE (SINK TRANSISTOR)

11. CURRENT SENSE THRESHOLD vs. ERROR AMPLIFIER OUTPUT

12. OUTPUT SATURATION VOLTAGE vs. OUTPUT CURRENT AND

TEMPERATURE (SOURCE TRANSISTOR)

FIGURE INDEX

Application Information

FIGURE #

13. OSCILLATOR TIMING CIRCUIT

14. OSCILLATOR FREQUENCY vs. RT FOR VARIOUS CT

Typical Applications Section

FIGURE #

15. CURRENT SENSE SPIKE SUPPRESSION

16. MOSFET PARASITIC OSCILLATIONS

17. BIPOLAR TRANSISTOR DRIVE

18. ISOLATED MOSFET DRIVE

19. ADJUSTABLE BUFFERED REDUCTION OF CLAMP LEVEL WITH

SOFTSTART

20. EXTERNAL DUTY CYCLE CLAMP AND MULTI-UNIT

SYNCHRONIZATION

21. OSCILLATOR CONNECTION

22. ERROR AMPLIFIER CONNECTION

23. SLOPE COMPENSATION

24. OPEN LOOP LABORATORY FIXTURE

25. OFF-LINE FLYBACK REGULATOR

6

Copyright © 2000

Rev. 1.6 4/00

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