NCP1252 ON Semiconductor, NCP1252 Datasheet - Page 8

• Manufacturer Part Number: NCP1252
• Description: Flyback Applications
• Manufacturer: ON Semiconductor

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1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
84
83
82
81
80
79
78
77
76
20
18
16
14
12
10
0
−40
−40
−40
Figure 16. Maximum Duty−cycle, B Version vs.
Figure 20. Skip Cycle Threshold vs. Junction
−20
−20
−20
Figure 18. Drive Clamping Voltage vs.
0
0
0
Junction Temperature
Junction Temperature
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
20
20
20
Temperature
40
40
40
60
60
60
80
80
80
TYPICAL CHARACTERISTICS
100
100
100
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120
120
120
8
14
12
10
20
18
16
14
12
10
10
11
8
6
4
2
0
9
8
−40
−40
10
Figure 17. Drive Sink and Source Resistances
Figure 19. Drive Clamping Voltage vs. Supply
−20
Figure 21. Soft Start Current vs. Junction
−20
0
15
0
vs. Junction Temperature
SUPPLY VOLTAGE Vcc (V)
TEMPERATURE (°C)
TEMPERATURE (°C)
20
20
Temperature
Voltage
40
40
20
ROH
ROL
60
60
80
80
25
100
100
120
120
30