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SCY99194 Datasheet, PDF (12/40 Pages) ON Semiconductor – Fixed Frequency Current Mode Controller
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SCY99194
TYPICAL CHARACTERISTIC
0.77
0.75
0.73
0.71
0.69
0.67
0.65
0.63
−50
−25
0 25 50 75 100 125
TEMPERATURE (°C)
Figure 24. FB Pin Skip−In Level Vskip(in)
0.88
0.86
0.84
0.82
0.80
0.78
0.76
0.74
0.72
−50
−25
0
25
50
75 100 125
TEMPERATURE (°C)
Figure 25. FB Pin Skip−Out Level Vskip(out)
2.60
2.55
2.50
2.45
2.40
2.35
2.30
2.25
2.20
2.15
2.10
−50 −25
0 25 50 75 100 125
TEMPERATURE (°C)
Figure 26. FB Pin Level VFB(OPCF) Above
Which is the Overpower Compensation
Applied
2.40
2.35
2.30
2.25
2.20
2.15
2.10
2.05
2.00
1.95
1.90
−50
−25
0
25
50
75 100 125
TEMPERATURE (°C)
Figure 27. FB Pin Level VFB(OPCE) Below
Which is No Overpower Compensation
Applied
13.0
12.8
12.6
12.4
12.2
12.0
11.8
11.6
11.4
11.2
11.0
−50 −25
0 25 50 75 100 125
TEMPERATURE (°C)
Figure 28. VCC Turn−on Threshold Level, VCC
Going Up HV Current Source Stop Threshold
VCC(on)
11.5
11.3
11.1
10.9
10.7
10.5
10.3
10.1
9.9
9.7
9.5
−50
−25
0
25
50
75 100 125
TEMPERATURE (°C)
Figure 29. HV Current Source Restart
Threshold VCC(min)
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