LinkSwitch-HP Family - Codico

LinkSwitch-HP
1. Startup
26. Pause 150 ms
(Auto-Restart Off
Period (t AR(OFF) )
No
2. Latching
Shutdown?
(C BF = 47 µF)
Yes
3. AC
Present?
(I FB > -250 µA)
Yes
4. Start Switching
(With 15 ms
Soft-Start)
5. Line OV?
(I FB > -1.15 mA
for 2 Cycles)
No
No
Yes
Yes
6. Brown-Out?
(I FB < -100 µA
for 8 Cycles)
11. AC
Present?
(I FB > -250 µA)
No
27. Pause 150 ms
(Auto-Restart Off
Period t AR(OFF)1 )
No
Yes
7. Regulation
Lost? (V FB < 1.85 V
for 35 ms)
No
12. Start Switching
(With 15 ms
Soft-Start)
14. Line OV?
(I FB > -1.15 mA
for 2 Cycles)
No
Yes
20. Start Switching
(With 15 ms
Soft-Start)
Yes
15. Brown-Out?
(I FB < -100 µA
for 8 Cycles)
8. Stop Switching
No
Yes
21. Line OV?
(I FB > 1.15 mA
for 2 Cycles)
16. Regulation
Lost? (V FB < 1.85 V
for 35 ms)
No
No
9. Latch Reset?
(V PD > 3.4 V)
Yes
No
Yes
10. Reset Latch
Yes
22. Brown-Out?
(I FB < -100 µA
for 8 Cycles)
17. Stop Switching
PI-6838-072312
No
23. Regulation
Lost? (V FB < 1.85 V
for 35 ms)
No
18. Pause 150 ms
(Auto-Restart Off
Period t AR(OFF)1 )
Yes
24. Stop Switching 19. AC Present?
(I FB > -250 µA)
No
25. Pause 1500 ms
(Auto-Restart Off
Period t AR(OFF)2 )
Yes
Figure 9.
Line Sensing and Auto-Restart Flow Chart.
6
Rev. A 07/12
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