NCP1271
TYPICAL CHARACTERISTICS
4.5
4.4
4.3
4.2
4.1
4.0
3.9
3.8
3.7
6
5
4
3
2
V
CC
= V
− 0.2 V
CC(on)
125°C
−40°C
25°C
1
0
3.6
3.5
−50
−25
0
25
50
75
100
125
0
2
4
6
8
10
12
TEMPERATURE (°C)
V , SUPPLY VOLTAGE (V)
CC
Figure 17. High Voltage Startup Current vs.
Temperature
Figure 18. Startup Current vs. VCC Voltage
25
24
23
22
21
40
35
30
25
20
15
10
20
19
18
17
5
0
16
15
−50
−25
0
25
50
75
100
125
−50
−25
0
25
50
75
100
125
TEMPERATURE (°C)
TEMPERATURE (°C)
Figure 19. Startup Leakage Current vs.
Temperature
Figure 20. Minimum Startup Voltage vs.
Temperature
14
12
10
8
3.5
V
CC(on)
I
(100 kHz)
(65 kHz)
CC1
3.0
2.5
2.0
1.5
1.0
V
CC(off)
I
CC1
V
CC(latch)
6
I
I
CC2
V
CC(reset)
4
CC3
2
0
0.5
0
−50
−25
0
25
50
75
100
125
−50
−25
0
25
50
75
100
125
TEMPERATURE (°C)
TEMPERATURE (°C)
Figure 21. Supply Voltage Thresholds vs.
Temperature
Figure 22. Supply Currents vs. Temperature
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