ncp1001 ON Semiconductor, ncp1001 Datasheet - Page 5

• Manufacturer Part Number: ncp1001
• Description: Integrated Off-line Switching Regulator
• Manufacturer: ON Semiconductor

1000
100
100
0.800
0.700
0.600
0.500
0.400
0.300
0.200
0.100
0.000
1.0
10
10
1
10
1
0.8
Figure 4. Charge Time vs. V
NCP1001
Figure 2. Duty Cycle vs. FB Input Current
Figure 6. Power Switch Circuit
1
Capacitance vs. Voltage
Switch Voltage (V)
Capacitance (mF)
NCP1000
1.2
NCP1002
l
100
fb
10
(mA)
1.4
CC
NCP1000, NCP1001, NCP1002
Capacitance
1.6
http://onsemi.com
1000
100
1.8
5
104.0
102.0
100.0
2.50
2.00
1.50
1.00
0.50
0.00
92.0
90.0
88.0
86.0
4.00
3.50
3.00
98.0
96.0
94.0
1.5
0.5
2
1
0
−40
0
1
Figure 5. Startup Current vs. Startup Voltage
−25
1
Figure 7. Oscillator Frequency
2
0
Start−up Voltage (V) (Pin 4)
Figure 3. I
10
3
vs. Temperature
Temperature ( C)
25
4
V
CC
CC
(V)
50
5
vs. V
100
6
CC
75
V
CC
7
= 4.0 V
100
8
1000
125
9