LinkZero-LP Power Integrations, Inc., LinkZero-LP Datasheet - Page 12

• Manufacturer Part Number: LinkZero-LP
• Description: LinkZero-LP, an upgrade to PI's popular LinkSwitch-LP, incorporates new technology which enables the device to automatically enter into and wake up from no-load mode while disipating less than 5 mW - substantially less than the IEC definition of zero
• Manufacturer: Power Integrations, Inc.

Rev. B 12/07/10
Typical Performance Characteristics (cont.)
12
Figure 20. FEEDBACK Pin Input Characteristics in CC Mode
Figure 18. FEEDBACK Pin Regulation Voltage Threshold vs.
Figure 16. C
1000
1.8
1.7
1.6
1.5
1.4
1.3
100
-10
-12
-14
-16
-18
-20
10
-2
-4
-6
-8
0
1
0 10 20 30 40 50 60 70 80 90 100
0
0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8
(1.7 V to 0.9 V).
Output Load in CV Mode.
LNK574
DSS
100
FEEDBACK Pin Voltage (V)
vs. Drain Voltage.
Drain Voltage (V)
Output Load (%)
200
300
400
500
600
Figure 17. Frequency Reduction vs. Duty Cycle (Line Voltage).
Figure 19. FEEDBACK Pin Input Characteristics.
Figure 21. Frequency Cut Back in CC Mode Normalized to 1.
110
100
-10
-11
-12
-13
-14
-15
-10
-20
-30
90
80
70
60
50
40
30
20
10
-1
-2
-3
-4
-5
-6
-7
-8
-9
0
0
0.0
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
0
FEEDBACK Pin Voltage (V)
Frequency Normalized to 1
10
1.0
Auto-Restart
2.0
20
Duty Cycle (%)
3.0
30
4.0
40
5.0
50
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6.0
60
7.0
70