LNK500P-TL POWERINT [Power Integrations, Inc.], LNK500P-TL Datasheet - Page 14

• Manufacturer Part Number: LNK500P-TL
• Description: Energy Efficient, CV or CV/CC Switcher for Very Low Cost Adapters and Chargers
• Manufacturer: POWERINT [Power Integrations, Inc.]

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