NCP1031 ON, NCP1031 Datasheet - Page 11

• Manufacturer Part Number: NCP1031
• Description: Low Power PWM Controller with On-Chip Power Switch and Startup Circuits for 48V Telecom Systems
• Manufacturer: ON

4.1
3.9
3.7
3.5
3.3
3.1
2.9
2.7
2.5
10
V
T
C
J
DRAIN
T
Figure 28. Operating Supply Current vs.
= 25 C
= 560 pF
11
= 48 V
V
CC
12
, SUPPLY VOLTAGE (V)
Supply Voltage
13
10
9
8
7
6
5
4
3
2
200
Figure 30. Operating Supply Current vs.
14
300
TYPICAL CHARACTERISTICS
f
OSC
400
, OSCILLATOR FREQUENCY (kHz)
NCP1030, NCP1031
15
Oscillator Frequency
http://onsemi.com
500
16
NCP1031
NCP1030
11
600
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
700
−50
−25
800
Figure 29. Supply Current vs. Junction
T
T
J
J
= 25 C
900
, JUNCTION TEMPERATURE ( C)
0
V
V
UV
UV
1000
= 3.0 V, V
25
= 3.0 V, V
Temperature
V
UV
= 2.0 V
50
FB
FB
= 2.7 V
= 2.3 V
75
V
C
100
CC
T
= 560 pF
= 12 V
125
150