NCP1212_05 Datasheet, PDF (8/22 Pages) ON Semiconductor – Current Mode PWM Controller for Both Forward and Flyback Converters

NCP1212
50
50
40
40
30
30
20
20
10
10
0
−25
1
27
53
79
105
T_J, JUNCTION TEMPERATURE (°C)
Figure 15. Gate Drive Voltage Rise Time vs.
Junction Temperature
1.4
1.3
1.2
1.1
1.0
0.9
0.8
−25
1
27
53
79
105
T_J, JUNCTION TEMPERATURE (°C)
Figure 17. Brownout Input Threshold Voltage
vs. Junction Temperature
0
−25
1
27
53
79
105
T_J, JUNCTION TEMPERATURE (°C)
Figure 16. Gate Drive Voltage Fall Time vs.
Junction Temperature
55
50
45
40
35
30
25
−25
1
27
53
79
105
T_J, JUNCTION TEMPERATURE (°C)
Figure 18. Brownout Hysteresis Current vs.
Junction Temperature
60
2.1V ≤ V_DMAX ≤ 2.8V
55
50
45
40
35
30
25
20
−25
1
27
53
79
105
T_J, JUNCTION TEMPERATURE (°C)
Figure 19. Maximum Duty Cycle, DMAX₄₈ vs.
Junction Temperature
100
V_DMAX≥ 3V
90
80
70
60
50
−25
1
27
53
79
105
T_J, JUNCTION TEMPERATURE (°C)
Figure 20. Maximum Duty Cycle, DMAX₈₂ vs.
Junction Temperature
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