SG2843M Microsemi Analog Mixed Signal Group, SG2843M Datasheet - Page 6
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SG2843M
Manufacturer Part Number
SG2843M
Description
IC PWM CURRENT MODE 8DIP
Manufacturer
Microsemi Analog Mixed Signal Group
Datasheet
1.SG3842M.pdf
(14 pages)
Specifications of SG2843M
Pwm Type
Current Mode
Number Of Outputs
1
Frequency - Max
500kHz
Duty Cycle
100%
Voltage - Supply
8.2 V ~ 30 V
Buck
No
Boost
No
Flyback
Yes
Inverting
No
Doubler
No
Divider
No
Cuk
No
Isolated
Yes
Operating Temperature
-25°C ~ 85°C
Package / Case
8-DIP
Frequency-max
500kHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
SG1842/SG1843 Series
6
FIGURE #
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. OUTPUT SATURATION VOLTAGE vs. OUTPUT CURRENT AND
11. CURRENT SENSE THRESHOLD vs. ERROR AMPLIFIER OUTPUT
12. OUTPUT SATURATION VOLTAGE vs. OUTPUT CURRENT AND
DROPOUT VOLTAGE vs. TEMPERATURE
OSCILLATOR TEMPERATURE STABILITY
CURRENT SENSE TO OUTPUT DELAY vs. TEMPERATURE
OUTPUT DUTY CYCLE vs. TEMPERATURE
START-UP CURRENT vs. TEMPERATURE
REFERENCE VOLTAGE vs. TEMPERATURE
START-UP VOLTAGE THRESHOLD vs. TEMPERATURE
START-UP VOLTAGE THRESHOLD vs. TEMPERATURE
OSCILLATOR DISCHARGE CURRENT vs. TEMPERATURE
TEMPERATURE (SINK TRANSISTOR)
TEMPERATURE (SOURCE TRANSISTOR)
GRAPH / CURVE INDEX
Characteristic Curves
P R O D U C T D A T A B O O K 1 9 9 6 / 1 9 9 7
C
U R R E N T
P
R O D U C T I O N
- M
O D E
P W M C
D
A T A
FIGURE #
13. OSCILLATOR TIMING CIRCUIT
14. OSCILLATOR FREQUENCY vs. R
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
20. EXTERNAL DUTY CYCLE CLAMP AND MULTI-UNIT
21. OSCILLATOR CONNECTION
22. ERROR AMPLIFIER CONNECTION
23. SLOPE COMPENSATION
24. OPEN LOOP LABORATORY FIXTURE
25. OFF-LINE FLYBACK REGULATOR
SOFTSTART
SYNCHRONIZATION
O N T R O L L E R
S
H E E T
Typical Applications Section
Application Information
FIGURE INDEX
T
FOR VARIOUS C
T
Copyright © 2000
Rev. 1.6a 10/04