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AN4116 Datasheet(PDF) 4 Page - STMicroelectronics |
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AN4116 Datasheet(HTML) 4 Page - STMicroelectronics |
4 / 38 page List of figures AN4116 4/38 Doc ID 023220 Rev 1 List of figures Figure 1. Demonstration board image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 2. Application schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Figure 3. VDD waveforms IC externally biased (J1 selected) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Figure 4. VDD waveforms IC self-biased (J1 not selected) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Figure 5. Transformer size and pin diagram pin distances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Figure 6. Transformer electrical diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Figure 7. Transformer side view 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Figure 8. Transformer side view 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Figure 9. Drain current/voltage @ 115 VAC max. load. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Figure 10. Drain current/voltage @ 230 VAC max. load. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Figure 11. Drain current/voltage @ 90 VAC max. load. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Figure 12. Drain current/voltage @ 265 VAC max. load. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Figure 13. Line regulation at different loads; IC externally biased (J1 selected) . . . . . . . . . . . . . . . . . 14 Figure 14. Line regulation at different loads; IC self-biased (J1 not selected) . . . . . . . . . . . . . . . . . . . 14 Figure 15. Load regulation at different input voltages; IC externally biased (J1 selected). . . . . . . . . . 15 Figure 16. Load regulation at different input voltages; IC self-biased (J1 not selected) . . . . . . . . . . . 15 Figure 17. Output voltage ripple @ 115 VAC no load. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Figure 18. Output voltage ripple @ 230 VAC no load. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Figure 19. Output voltage ripple @ 115 VAC 25 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Figure 20. Output voltage ripple @ 230 VAC 25 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Figure 21. Active mode efficiency of the demonstration board and comparison with energy efficiency standards (IC externally biased) . . . . . . . . . . . . . 17 Figure 22. PIN vs. VIN at no load and light load; IC externally biased (J1 selected) . . . . . . . . . . . . . . 19 Figure 23. PIN vs. VIN at no load and light load, IC self-biased (J1 not selected) . . . . . . . . . . . . . . . . 19 Figure 24. Efficiency @ PIN=1 W; IC externally biased (J1 selected) . . . . . . . . . . . . . . . . . . . . . . . . . 20 Figure 25. Efficiency @ PIN=1 W; IC self-biased (J1 not selected) . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Figure 26. PIN @ POUT = 250 mW; IC externally biased (J1 selected) . . . . . . . . . . . . . . . . . . . . . . . . 20 Figure 27. PIN @ POUT = 250 mW; IC self-biased (J1 not selected) . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Figure 28. Soft-start at startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Figure 29. Soft-start at startup (zoom) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Figure 30. Output short-circuit applied: OLP tripping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Figure 31. Output short-circuit maintained: OLP steady-state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Figure 32. Output short-circuit maintained: OLP steady-state (zoom) . . . . . . . . . . . . . . . . . . . . . . . . . 22 Figure 33. Output short-circuit removal and converter restart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Figure 34. Feedback loop failure protection: tripping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Figure 35. Feedback loop failure protection: steady-state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Figure 36. Feedback loop failure protection: steady-state, zoom . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Figure 37. Feedback loop failure protection: converter restart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Figure 38. Control loop block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Figure 39. Thermal map at VIN=85 VAC, TAMB=25 °C, full load; IC externally biased . . . . . . . . . . . . . 27 Figure 40. Thermal map at VIN=85 VAC, TAMB=25 °C, full load; IC self-biased . . . . . . . . . . . . . . . . . . 27 Figure 41. Thermal map at VIN=115 VAC, full load, TAMB=25 °C; IC externally biased. . . . . . . . . . . . 27 Figure 42. Thermal map at VIN=115 VAC, full load, TAMB=25 °C; IC self-biased . . . . . . . . . . . . . . . . . 27 Figure 43. Thermal map @ VIN=230 VAC, full load, TAMB=25 °C; IC externally biased. . . . . . . . . . . . 28 Figure 44. Thermal map @ VIN=230 VAC, full load, TAMB=25 °C; IC self-biased . . . . . . . . . . . . . . . . 28 Figure 45. Thermal map @ VIN=265 VAC, full load, TAMB=25 °C; IC externally biased. . . . . . . . . . . . 28 Figure 46. Thermal map @ VIN=265 VAC, full load, TAMB=25 °C; IC self-biased . . . . . . . . . . . . . . . . 28 Figure 47. Peak measurements @ VIN=115 VAC, full load, TAMB=25 ×C; IC externally biased . . . . . 29 |
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Similar Description - AN4116 |
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