NCL30188 Datasheet, PDF (13/26 Pages) ON Semiconductor – Power Factor Corrected Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting with Thermal Foldback

NCL30188
TYPICAL CHARACTERISTICS
7.8
7.6
7.4
7.2
7.0
6.8
6.6
6.4
6.2
6.0
5.8
−50 −25 0 25 50 75 100 125 150
T_J, JUNCTION TEMPERATURE (°C)
Figure 32. ZCD Time−out vs. Temperature
256
255
254
253
252
251
250
249
248
247
246
245
244
−50 −25 0 25 50 75 100 125 150
T_J, JUNCTION TEMPERATURE (°C)
Figure 33. Reference Voltage vs. Temperature
110
100
90
80
70
60
50
40
30
20
10
−50 −25 0 25 50 75 100 125 150
T_J, JUNCTION TEMPERATURE (°C)
Figure 34. Current Sense Lower Threshold
(V_CS Falling) vs. Temperature
22.0
21.5
21.0
20.5
20.0
19.5
19.0
18.5
18.0
−50 −25 0 25 50 75 100 125 150
T_J, JUNCTION TEMPERATURE (°C)
Figure 36. Feedforward V_VS to I_CS(offset)
Conversion Ratio vs. Temperature
60
58
56
54
52
50
48
46
44
42
−50 −25 0 25 50 75 100 125 150
T_J, JUNCTION TEMPERATURE (°C)
Figure 35. Error Amplifier Trans−conductance
Gain vs. Temperature
44
43
42
41
40
39
38
37
36
−50 −25 0 25 50 75 100 125 150
T_J, JUNCTION TEMPERATURE (°C)
Figure 37. Line Feedforward Current on CS
Pin (@ V_VS = 2 V) vs. Temperature
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