NCP1212 ON Semiconductor, NCP1212 Datasheet - Page 9

• Manufacturer Part Number: NCP1212
• Description: Current Mode Pwm Controller For Both Forward And Flyback Converters
• Manufacturer: ON Semiconductor

12
10
11
5.0
4.0
3.0
2.0
1.0
0.0
20
17
14
11
9
8
7
6
−25
8
5
−25
−25
Figure 25. Power Supply Operating Current vs.
Figure 23. V
Figure 21. V
Threshold vs. Junction Temperature
T
T
1
T
J
1
1
J
, JUNCTION TEMPERATURE (°C)
J
, JUNCTION TEMPERATURE (°C)
, JUNCTION TEMPERATURE (°C)
Junction Temperature
Junction Temperature
CC
CC
Startup Threshold Voltage vs.
27
27
27
Under Voltage Lockout
53
53
53
V
CC
79
79
79
= 16V
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NCP1212
105
105
105
9
200
150
100
4.0
3.5
3.0
2.5
2.0
1.5
1.0
30
27
24
21
18
15
50
−25
−25
−25
0
Figure 22. V
Figure 26. Power Supply Shutdown Current
Figure 24. Power Supply Current Startup vs.
T
T
T
1
1
1
J
J
J
, JUNCTION TEMPERATURE (°C)
, JUNCTION TEMPERATURE (°C)
, JUNCTION TEMPERATURE (°C)
vs. Junction Temperature
vs. Junction Temperature
CC
Junction Temperature
Overvoltage Lockout Threshold
27
27
27
53
53
53
V
V
CC
CC
79
79
79
= 12V
= 15V
105
105
105