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SG1844 Datasheet(PDF) 6 Page - Microsemi Corporation

Part No. SG1844
Description  CURRENT MODE PWM CONTROLLER
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Maker  MICROSEMI [Microsemi Corporation]
Homepage  http://www.microsemi.com
Logo MICROSEMI - Microsemi Corporation

SG1844 Datasheet(HTML) 6 Page - Microsemi Corporation

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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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