LNK584-586
Typical Performance Characteristics (cont.)
110
100
90
1000
100
10
1
80
70
60
0
10
20 30
40 50 60 70
0
100 200 300 400 500 600
Drain Voltage (V)
Duty Cycle (%)
Figure 16. CDSS vs. Drain Voltage.
Figure 17. Frequency Reduction vs. Duty Cycle (Line Voltage).
50
40
30
0
-2
-4
-6
20
10
-8
-10
-12
-14
-16
-18
0
-10
-20
-30
-20
0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0
0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8
FEEDBACK Pin Voltage (V)
FEEDBACK Pin Voltage (V)
Figure 18. FEEDBACK Pin Input Characteristics.
Figure 19. FEEDBACK Pin Input Characteristics During Output
Power Limiting (1.70 V to 0.9 V).
10
0
-1
-2
-3
-4
-5
-6
9
8
7
6
-7
-8
-9
-10
-11
-12
5
4
3
2
Auto-Restart
-13
-14
-15
1
0
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
-50 -25
0
25 50 75 100 125
Frequency Normalized to 1
Temperature (°C)
Figure 21. Typical Drain Current vs. Temperature in
Power-Down Mode.
Figure 20. Frequency Cut Back During Output Power Limiting.
12
Rev. B 05/11
www.powerint.com
POWERINT [ Power Integrations ]
