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SG6846ALSY Datasheet(PDF) 10 Page - Fairchild Semiconductor

Part # SG6846ALSY
Description  Highly Integrated Green-Mode PWM Controller
Download  15 Pages
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Manufacturer  FAIRCHILD [Fairchild Semiconductor]
Direct Link  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

SG6846ALSY Datasheet(HTML) 10 Page - Fairchild Semiconductor

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© 2008 Fairchild Semiconductor Corporation
www.fairchildsemi.com
SG6846A • Rev. 1.1.4
10
Typical Performance Characteristics (Continued)
60
65
70
75
80
85
-40 -25 -10
5
20
35
50
65
80
95
110 125
Temperature (°C)
0
14
28
42
56
70
1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4
VFB (V)
Figure 14. Normal PWM Frequency (fOSC)
vs. Temperature
Figure 15. PWM Frequency vs. FB Voltage
0.60
0.65
0.70
0.75
0.80
0.85
0.90
0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 2.7 2.9 3.1 3.3
VIN ( V )
0.50
0.58
0.66
0.74
0.82
0.90
0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 2.7 2.9 3.1 3.3
VIN (V)
Figure 16. Current-Limit Threshold vs. VIN Voltage
Figure 17. 2/3 Current-Limit Threshold vs. VIN Voltage
68.5
69.0
69.5
70.0
70.5
71.0
-40 -25 -10 5
20 35 50 65 80 95 110 125
Temperature (℃)
0.4
0.6
0.8
1.0
1.2
1.4
-40 -25 -10
5
20 35 50 65 80 95 110 125
Temperature (℃)
Figure 18. Output Current of RT Pin (IRT)
vs. Temperature
Figure 19. FB Output High Voltage (VRTTH)
vs. Temperature


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