NCP1601A, NCP1601B
210
208
206
204
202
200
198
196
194
192
190
−50
TYPICAL CHARACTERISTICS
1.2
1.0
0.8
TJ = −40°C
0.6
0.4
TJ = 25°C
TJ = 125°C
0.2
−25 0
25 50 75 100 125
TJ, JUNCTION TEMPERATURE (°C)
Figure 7. Reference Current vs.
Temperature
0
150 160 170 180 190 200 210 220
IFB, FEEDBACK CURRENT (mA)
Figure 8. Regulation Block Transfer
Function
100
99
98
97
96
95
94
93
92
91
90
−50 −25 0
25 50 75 100 125
TJ, JUNCTION TEMPERATURE (°C)
Figure 9. Regulation Block Ratio vs. Temperature
1.10
1.08
1.06
1.04
1.02
1.00
−50 −25 0
IFB = 100 mA
25 50 75 100 125
TJ, JUNCTION TEMPERATURE (°C)
Figure 10. Maximum Control Voltage vs.
Temperature
6
5
TJ = 125°C
4
3
TJ = 25°C
TJ = −40°C
2
1
0
0
50
100
150
200
250
IFB, FEEDBACK PIN CURRENT (mA)
Figure 11. Feedback Pin Voltage vs. Feedback
Current
110
109.5
109
108.5
108
107.5
107
106.5
106
105.5
105
−50 −25 0
25 50 75 100 125
TJ, JUNCTION TEMPERATURE (°C)
Figure 12. Overvoltage Protection Ratio
vs. Temperature
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