NCP1280_05 ONSEMI [ON Semiconductor], NCP1280_05 Datasheet - Page 10

• Manufacturer Part Number: NCP1280_05
• Description: Active Clamp Voltage Mode PWM Controller for Off-Line Applications
• Manufacturer: ONSEMI [ON Semiconductor]

50
40
30
20
10
5.03
5.01
4.99
4.97
4.95
4.93
225
200
175
150
125
100
0
75
50
−50
−50
0
Figure 23. Reference Voltage versus Junction
−25
Figure 21. V
Figure 25. Outputs Overlap Delay versus
−25
T
J
= 25 C
200
T
T
J
J
0
, JUNCTION TEMPERATURE ( C)
, JUNCTION TEMPERATURE ( C)
I
REF
0
Junction Temperature
R
D
, DELAY RESISTOR (kW)
= 6 mA
EA
25
Delay Resistor
25
Temperature
400
Input Resistance versus
I
50
REF
50
= 0 mA
600
75
75
100
TYPICAL CHARACTERISTICS
TRAILING
LEADING
100
800
125
125
http://onsemi.com
NCP1280
1000
150
150
10
0.85
0.75
0.65
0.55
0.45
0.35
350
300
250
200
150
100
200
160
120
50
80
40
0
0
−50
−50
−50
V
R
Figure 26. Outputs Drive Resistance Voltage
AUX
MDP
Figure 22. PWM Comparator Lower Input
−25
Threshold versus Junction Temperature
−25
−25
Figure 24. Outputs Overlap Delay versus
= 12 V
= 100 kW
T
T
T
R
J
J
J
versus Junction Temperature
, JUNCTION TEMPERATURE ( C)
D
, JUNCTION TEMPERATURE ( C)
, JUNCTION TEMPERATURE ( C)
0
0
0
= 60 kW, LEADING
Junction Temperature
25
25
25
R
R
SNK
SRC
50
50
50
(V
(V
R
EA
EA
D
75
75
75
= 3 V, V
= 1 MW, LEADING
= 0 V, V
100
100
100
OUT
OUT
= 2 V)
= 10 V)
125
125
125
150
150
150