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SG3842J Datasheet(PDF) 6 Page - Microsemi Corporation

Part # SG3842J
Description  CURRENT MODE PWM CONTROLLER
Download  14 Pages
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Manufacturer  MICROSEMI [Microsemi Corporation]
Direct Link  http://www.microsemi.com
Logo MICROSEMI - Microsemi Corporation

SG3842J Datasheet(HTML) 6 Page - Microsemi Corporation

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C URRENT -M ODE PWM C ONTROLLER
SG1842/SG1843 Series
PRODUCT DA T ABOOK 1996/1997
Copyright © 2000
Rev. 1.6
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.
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. R
T 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


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