ncs1002 ON Semiconductor, ncs1002 Datasheet - Page 5

• Manufacturer Part Number: ncs1002
• Description: Constant Voltage/ Constant Current Secondary?side Controller
• Manufacturer: ON Semiconductor

2.58
2.56
2.54
2.52
2.48
2.46
2.44
2.42
1.4
1.2
1.0
0.8
0.6
0.4
0.2
2.6
2.5
2.4
0.5
25
20
15
14
13
12
10
11
0
9
8
7
6
5
4
3
2
1
100 pF
−50
0
Figure 1. Input Offset Voltage vs. Temperature
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
Figure 5. Region of Reference Stability vs.
10
−30
u
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
500
Figure 3. Vref as a Function of IK
u
u
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
20
CAPACITIVE LOAD ON Vref (Pin 3)
−10
u
u
u
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
CATHODE CURRENT IK (mA)
Capacitive Load (Pin 3)
1000
30
S − Stable; U − Unstable
u
u
u
u
s
s
s
s
s
s
s
s
s
s
s
s
s
s
TEMPERATURE (°C)
10
u
u
u
u
u
u
s
s
s
s
s
s
s
s
s
s
s
s
40
1500
u
u
u
u
u
u
30
s
s
s
s
s
s
s
s
s
s
s
s
OP1
50
u
u
u
u
u
u
s
s
s
s
s
s
s
s
s
s
s
s
50
2000
u
u
u
u
u
u
s
s
s
s
s
s
s
s
s
s
s
s
60
u
u
u
u
u
u
s
s
s
s
s
s
s
s
s
s
s
s
70
3 nF
70
u
u
u
u
u
s
s
s
s
s
s
s
s
s
s
s
s
s
90
u
u
u
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
80
u
u
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
4
http://onsemi.com
110
90
u
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
5.8
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
130
100
5
2.52
2.51
2.49
2.48
0.45
0.35
0.25
2.5
0.5
0.4
0.3
0.2
25
20
15
10
5
0
−50
−40
−40−30−20−10 0
−30
−20
Figure 6. Ref Dynamic Impedance vs.
Figure 4. Vref Over Temperature
Figure 2. IB vs. Temperature
−10
0
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
10 20 30 40 50 60 70 80 90 100
10
Temperature
20
30
40
50
60
70
90
80
100
110