SG1842(2000) 查看數據表（PDF） - Microsemi Corporation
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SG1842 Datasheet PDF : 14 Pages
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PRODUCT DATABOOK 1996/1997
SG1842/SG1843 Series
CURRENT-MODE PWM CONTROLLER
PRODUCTION DATA SHEET
CHARACTERISTIC CURVES
FIGURE 9. — OSCILLATOR DISCHARGE CURRENT vs.
TEMPERATURE
8.2
FIGURE 10. — OUTPUT SATURATION VOLTAGE vs.
OUTPUT CURRENT & TEMPERATURE
2.5
8.0
7.8
7.6
7.4
7.2
-75 -50 -25 0 25 50 75 100 125
Junction Temperature - (°C)
2.0
-55°C
+25°C
1.5
+125°C
1.0
VIN = 15V
Duty Cycle < 5%
0.5
0
100
200
300
400
500
Output Current - (mA)
FIGURE 11. — CURRENT SENSE THRESHOLD vs.
ERROR AMPLIFIER OUTPUT
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
1.0
2.0
3.0
4.0
5.0
Error Amp Output Voltage - (V)
FIGURE 12. — OUTPUT SATURATION VOLTAGE vs.
OUTPUT CURRENT & TEMPERATURE
4.0
VIN = 15V
Duty Cycle < 5%
3.0
+125+°2C5°C
-55°C
2.0
+25°C
+125°C
1.0
0
100
200
300
400
500
Output Current - (mA)
Copyright © 2000
Rev. 1.6 4/00
9
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