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AN4106 Datasheet(PDF) 4 Page - STMicroelectronics |
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AN4106 Datasheet(HTML) 4 Page - STMicroelectronics |
4 / 39 page List of figures AN4106 4/39 Doc ID 023156 Rev 1 List of figures Figure 1. EVLVIP26L-12WFN demonstration board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 2. Application schematic - complete . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Figure 3. Application schematic - simplified for VOUT ≥ 12 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Figure 4. Transformer size and pin diagram, bottom view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Figure 5. Transformer size, side view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Figure 6. Transformer, pin distances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Figure 7. Transformer, electrical diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Figure 8. Drain current and voltage at VIN = 115 VAC, full load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Figure 9. Drain current and voltage at VIN = 230 VAC, full load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Figure 10. Drain current and voltage at VIN = 90 VAC, full load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Figure 11. Drain current and voltage at VIN = 265 VAC, full load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Figure 12. Line regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Figure 13. Load regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Figure 14. Output voltage ripple at VIN = 115 VAC, full load. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Figure 15. Output voltage ripple at VIN = 230 VAC, full load. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Figure 16. Output voltage ripple at VIN =115 VAC, no load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Figure 17. Output voltage ripple at VIN =230 VAC, no load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Figure 18. Output voltage ripple at VIN =115 VAC, IOUT = 25 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Figure 19. Output voltage ripple at VIN =230 VAC, IOUT = 25 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Figure 20. Active mode efficiency vs. VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Figure 21. PIN vs. VIN at no load and light load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Figure 22. Efficiency at PIN = 1 W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Figure 23. PIN at POUT = 0.25 W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Figure 24. Soft-start at startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Figure 25. Soft-start at startup (zoom) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Figure 26. Output short-circuit applied: OLP tripping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Figure 27. Output short-circuit maintained: OLP steady-state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Figure 28. Output short-circuit maintained: OLP steady-state, zoom . . . . . . . . . . . . . . . . . . . . . . . . . 23 Figure 29. Output short-circuit removal and converter restart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Figure 30. Feedback loop failure protection: tripping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Figure 31. Feedback loop failure protection: steady-state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Figure 32. Feedback loop failure protection: steady-state, zoom . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Figure 33. Feedback loop failure removal: converter restart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Figure 34. Control loop block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Figure 35. Thermal map at TAMB = 25 ×C, VIN = 85 VAC, full load . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Figure 36. Thermal map at TAMB = 25 ×C, VIN = 115 VAC, full load . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Figure 37. Thermal map at TAMB = 25 ×C, VIN = 230 VAC, full load . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Figure 38. Background noise measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Figure 39. Average measurement at VIN = 115 VAC, full load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Figure 40. Average measurement at VIN = 230 VAC, full load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Figure 41. Bottom layer & top overlay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Figure 42. Connections of the UUT to the wattmeter for power measurements . . . . . . . . . . . . . . . . . 34 Figure 43. Switch in position 1 - setting for standby measurements . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Figure 44. Switch in position 2 - setting for efficiency measurements . . . . . . . . . . . . . . . . . . . . . . . . . 35 |
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Similar Description - AN4106 |
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