NCP1219 ONSEMI [ON Semiconductor], NCP1219 Datasheet - Page 11
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NCP1219
Manufacturer Part Number
NCP1219
Description
PWM Controller with Adjustable Skip Level and External Latch Input
Manufacturer
ONSEMI [ON Semiconductor]
Datasheet
1.NCP1219.pdf
(20 pages)
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1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
10
9
8
7
6
5
4
3
2
1
0
−50
−50
Figure 21. Adjustable Skip Threshold vs.
Figure 23. Soft−Start Period vs. Junction
−25
−25
T
T
J
J
, JUNCTION TEMPERATURE (°C)
, JUNCTION TEMPERATURE (°C)
0
0
Junction Temperature
25
25
Temperature
50
50
75
75
R
skip
TYPICAL CHARACTERISTICS
100
100
= 48.7 kW
125
125
http://onsemi.com
150
150
11
140
135
130
125
120
105
100
115
110
1.2
1.0
0.8
0.6
0.4
0.2
95
90
0
−50
1
Figure 24. Overload Timer Period vs. Junction
Figure 22. Skip Threshold vs. Skip Resistor
−25
R
Skip
T
J
, JUNCTION TEMPERATURE (°C)
10
, EXTERNAL SKIP RESISTOR (kW)
0
25
Temperature
100
50
75
1000
100
125
10000
150