lnk520 Power Integrations, Inc., lnk520 Datasheet - Page 16

• Manufacturer Part Number: lnk520
• Description: Energy Ef?cient, Cv Or Cv/cc Switcher For Very Low Cost Adapters And Chargers
• Manufacturer: Power Integrations, Inc.

Figure 14. LinkSwitch General Test Circuit.
Typical Performance Characteristics
16
Figure 16. I
LNK520
E
2/05
1.6
1.2
0.8
0.4
2
0
0
V
C
C
= 5.15 V
vs. DRAIN Voltage.
20
DRAIN Voltage (V)
40 V
S1
40
Figure 15. Duty Cycle Measurement.
VOLTAGE
60
DRAIN
40 V
0 V
80
HV
750 Ω
10 kΩ
90%
100
t 1
10%
0.22 µF
S2
C1
t 2
Figure 17. CONTROL Pin I-V Characteristic.
D =
120
100
80
60
40
20
0
0.0
t 1
t 2
PI-2048-050798
LinkSwitch
90%
2.0
CONTROL Pin Voltage (V)
C
D
S
4.0
S
S
S
S
6.0
8.0
10.0 12.0 14.0
PI-2894-031004