NCP1212 ON Semiconductor, NCP1212 Datasheet - Page 6

• Manufacturer Part Number: NCP1212
• Description: Current Mode Pwm Controller For Both Forward And Flyback Converters
• Manufacturer: ON Semiconductor

0.12
0.08
0.06
0.04
0.02
200
160
120
95
90
85
80
75
0.1
80
40
−25
0
0
−25
−25
Figure 3. Oscillator Frequency with 48% Duty
Figure 7. Propagation Delay vs. Junction
Figure 5. Frequency Change against Supply
T
Cycle vs. Junction Temperature
T
1
Voltage vs. Junction Temperature
T
J
1
1
J
, JUNCTION TEMPERATURE (°C)
J
, JUNCTION TEMPERATURE (°C)
, JUNCTION TEMPERATURE (°C)
Temperature
27
27
27
53
53
53
V
DMAX = 48%
C
CC
T
TYPICAL CHARACTERISTICS
= 1 nF
= 13V to 25V
79
79
79
http://onsemi.com
NCP1212
105
105
105
6
1.15
1.05
0.95
100
400
350
300
250
200
150
100
90
80
70
60
50
1.2
1.1
1.0
0.9
−25
−25
−25
Figure 4. Oscillator Frequency with 82% Duty
Threshold Voltage vs. Junction Temperature
Figure 8. Leading Edge Blanking Time vs.
Figure 6. Maximum Current Sense Input
Cycle vs. Junction Temperature
T
T
T
1
1
1
J
J
J
, JUNCTION TEMPERATURE (°C)
, JUNCTION TEMPERATURE (°C)
, JUNCTION TEMPERATURE (°C)
Junction Temperature
27
27
27
53
53
53
DMAX = 82%
C
T
= 1 nF
79
79
79
105
105
105