NCP1560(2003) Просмотр технического описания (PDF) - ON Semiconductor
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NCP1560 Datasheet PDF : 18 Pages
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NCP1560
Typical Characteristics
315
600
310
500
RT = 101 kW
305
400
TJ = 25°C
DC [ 50%
300
300
295
200
290
100
285
-50 -25
0
0 25 50 75 100 125 150
50 100 150 200 250 300 350 400
TJ, JUNCTION TEMPERATURE (°C)
RT, TIMING RESISTOR (kW)
Figure 15. Oscillator Frequency versus
Junction Temperature
Figure 16. Oscillator Frequency versus
Timing Resistor
19
18
17
16
15
14
13
12
11
10
9
-50 -25
90
80
70
60
50
40
30
20
10
0
0 25 50 75 100 125 150
0
TJ, JUNCTION TEMPERATURE (°C)
Figure 17. Feedforward Internal Resistance
versus Junction Temperature
TJ = -40°C
Vin = 36 V
VEA = 3.0 V
VDCMAX = 0 V
TJ = 125°C
75 150 225 300 375 450 525
IFF, FEEDFORWARD CURRENT (mA)
Figure 18. Maximum Duty Cycle versus
Feedforward Current
100
Vin = 36 V
RFF = 432 kW
90
RP = OPEN, RMDP = OPEN
80
70
RP = 0 W, RMDP = OPEN
60
50
-50
-25
0 25 50 75 100 125 150
TJ, JUNCTION TEMPERATURE (°C)
Figure 19. Maximum Duty Cycle versus
Junction Temperature
7.0
70
6.5
CHARGE
65
6.0
60
5.5
55
5.0
DISCHARGE
50
4.5
45
4.0
40
3.5
35
3.0
-50 -25
30
0 25 50 75 100 125 150
TJ, JUNCTION TEMPERATURE (°C)
Figure 20. Soft Start Charge/Discharge
Currents versus Junction Temperature
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