LNK6665EVK datasheet(6/24 Pages) POWERINT

Part #	LNK6665EVK

Description	Energy Efficient, High-Power Off-Line Switcher With Accurate Primary-Side Regulation (PSR)

Download	24 Pages

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Manufacturer	POWERINT [Power Integrations, Inc.]

Direct Link	http://www.powerint.com

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6 / 24 page

Rev. C 03/14

6

LinkSwitch-HP

www.powerint.com

Figure 9.

Line Sensing and Auto-Restart Flow Chart.

1. Startup

Yes

No

2. Latching

Shutdown?

(CBF = 47 µF)

11. AC

Present?

(IFB > -250 µA)

14. Line OV?

(IFB > -1.15 mA

for 2 Cycles)

15. Brown-Out?

(IFB < -100 µA

for 8 Cycles)

16. Regulation

Lost? (VFB < 1.85 V

for 35 ms)

9. Latch Reset?

(VPD > 3.4 V)

8. Stop Switching

10. Reset Latch

21. Line OV?

(IFB > 1.15 mA

for 2 Cycles)

22. Brown-Out?

(IFB < -100 µA

for 8 Cycles)

17. Stop Switching

18. Pause 150 ms

(Auto-Restart Off

Period tAR(OFF)1)

23. Regulation

Lost? (VFB < 1.85 V

for 35 ms)

24. Stop Switching

19. AC Present?

(IFB > -250 µA)

25. Pause 1500 ms

(Auto-Restart Off

Period tAR(OFF)2)

3. AC

Present?

(IFB > -250 µA)

5. Line OV?

(IFB > -1.15 mA

for 2 Cycles)

6. Brown-Out?

(IFB < -100 µA

for 8 Cycles)

7. Regulation

Lost? (VFB < 1.85 V

for 35 ms)

26. Pause 150 ms

(Auto-Restart Off

Period (tAR(OFF))

4. Start Switching

(With 15 ms

Soft-Start)

27. Pause 150 ms

(Auto-Restart Off

Period tAR(OFF)1)

12. Start Switching

(With 15 ms

Soft-Start)

20. Start Switching

(With 15 ms

Soft-Start)

PI-6838-101812

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LNK6665EVK Datasheet(PDF) 6 Page - Power Integrations, Inc.

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