LNK500
LinkSwitch
750 Ω
10 kΩ
S
S
D
S1
S
C
S
S
S2
40 V
0.22 µF
40 V
PI-2894-062802
Figure 12. LinkSwitch General Test Circuit.
2
VC = 5.15 V
t
2
1.6
1.2
t
1
HV
90%
90%
t
t
0.8
0.4
0
DRAIN
VOLTAGE
1
D =
2
10%
0 V
PI-2048-050798
0
20
40
60
80
100
DRAIN Voltage (V)
Figure 14. Duty Cycle Measurement.
Figure 13. IC vs. DRAIN Voltage.
120
100
80
90
80
70
60
50
40
30
20
10
60
40
20
0
0
2.15
2.25
2.35
2.45
2.55
2.65
0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0
Control Pin Voltage (V)
Control Pin Current (mA)
Figure 16. Duty Cycle vs. CONTROL Pin Current.
Figure 15. CONTROL Pin I-V Characteristic.
B
3/03
14