NCP1603
http://onsemi.com
13
50
25
0
25
50
75
100
125
T
J
, JUNCTION TEMPERATURE (癈)
210
208
206
204
202
200
198
196
194
192
190
Figure 27. PFC Section Reference Current
vs. Temperature
1.2
1
0.8
0.6
0.4
0.2
0
150
160
170
180
190
200
210
220
I
FB
, FEEDBACK CURRENT (mA)
T
J
= 25癈
Figure 28. PFC Section Regulation Block
Transfer Function
50
25
0
25
50
75
100
125
T
J
, JUNCTION TEMPERATURE (癈)
100
99
98
97
96
95
94
93
92
91
90
Figure 29. PFC Section Regulation Block
vs. Temperature
1.1
1.08
1.06
1.04
1.02
1
50
25
0
25
50
75
100
125
T
J
, JUNCTION TEMPERATURE (癈)
I
FB
= 100 mA
Figure 30. PFC Section Maximum Control
Voltage vs. Temperature
6
5
4
3
2
1
0
0
50
100
150
200
250
I
FB
, FEEDBACK CURRENT (mA)
T
J
= 125癈
Figure 31. Feedback Pin Voltage
vs. Feedback Current
50
25
0
25
50
75
100
125
T
J
, JUNCTION TEMPERATURE (癈)
110
109.5
109
108.5
108
107.5
107
106.5
106
105.5
105
Figure 32. PFC Section Overvoltage Protection
Ratio vs. Temperature
T
J
= 125癈
T
J
= 40癈
T
J
= 25癈
T
J
= 40癈