Part Name
         Description
SG6858

 Low-Cost, Green-Mode PWM Controller for Flyback Converters ( 13 Page)


FAIRCHILD
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Product Specification
Low-Cost, Green-Mode PWM Controller for Flyback Converters
SG6858
© System General Corp.
- 6 -
www.sg.com.tw • www.fairchildsemi.com
Version 1.2.1 (IAO33.0045.B2)
September 25, 2007
TYPICAL CHARACTERISTICS
Turn-On Threashold Voltage (VDD-ON) vs
Temperature
15.5
16.0
16.5
17.0
17.5
-40
-25 -10
5
2035
5065
8095
110 125
Temperature (℃)
Turn-off Threshold Voltage (VDD-OFF) vs
Temperature
10.5
10.9
11.3
11.7
12.1
12.5
-40
-25
-10
5
20
35
50
65
80
95
110 125
Temperature (℃)
Startup Current(IDD-ST) vs Temperature
0
5
10
15
20
-40
-25
-10
5
20
35
50
65
80
95
110 125
Temperature (℃)
Operating Supply Current (IDD-OP) vs Temperature
1.5
2.0
2.5
3.0
3.5
-40
-25
-10
5
20
35
50
65
80
95
110 125
Temperature (℃)
Frequency (FOSC) vs Temperature
65
67
69
71
73
75
-40
-25
-10
5
20
35
50
65
80
95
110 125
Temperature (℃)
Maximum Duty Cycle (DCYMAX) vs Temperature
70
72
74
76
78
80
-40
-25
-10
5
20
35
50
65
80
95
110 125
Temperature (℃)
VDD=15V
VDD=15V
VDD=15V
VDD=15V
1  2  3  4  5  6  7  8  9  10  11  12  13 



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