NCP1212
Figure 27. Rise Time of Gate Drive Waveform
(CL = 1 nF)
4
3.5
3
2.5
2
1.5
1
0.5
0
−0.5
0
Ramp up to 24 V
Ramp down from 24 V
5
10
15
20
25
VCC, SUPPLY VOLTAGE (V)
Figure 29. Supply Current vs. Supply Voltage
(Duty Cycle = 82% and Output Load = 1 nF)
Figure 28. Fall Time of Gate Drive Waveform
(CL = 1 nF)
4
Ramp up to 24 V
3.5
Ramp down from 24 V
3
2.5
2
1.5
1
0.5
0
−0.5
0
5
10
15
20
25
VCC, SUPPLY VOLTAGE (V)
Figure 30. Supply Current vs. Supply Voltage
(Duty Cycle = 48% and Output Load = 1 nF)
300
48% DUTY −CYCLE
250
82% DUTY CYCLE
200
150
100
50
0
400
600
800
1000
1200
CT, PIN CAPACITANCE (pF)
Figure 31. Switch Frequency vs. CT Pin Capacitance
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10