Manuali utente per STMicroelectronics 250W TRANSITION-MODE PFC PRE-REGULATOR WITH L6563S EVL6563S-250W

Sommario

• Figure 1. EVL6563S-250W: L6563S 250W TM PFC demonstration board

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• 1 Main characteristics and circuit description

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• 2 Electrical diagram

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  • Figure 2. EVL6563S-250W TM PFC demonstration board: electrical schematic

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• 3 Bill of material

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  • Table 1. EVL6563S-250W TM PFC demonstration board BOM

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• 4 Test results and significant waveforms

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  • 4.1 Harmonic content measurement

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    • Figure 3. EVL6563S-250W TM PFC: compliance to EN61000-3-2 standard at 250 W

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    • Figure 4. EVL6563S-250W TM PFC: compliance to JEITA-MITI standard at 250 W

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    • Figure 5. EVL6563S-250W TM PFC: compliance to EN61000-3-2 standard at 70 W

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    • Figure 6. EVL6563S-250W TM PFC: compliance to JEITA-MITI standard at 70 W

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    • Figure 7. EVL6563S-250W TM PFC: input current waveform @230 V-50 Hz - 250 W load

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    • Figure 8. EVL6563S-250W TM PFC: input current waveform @100 V-50 Hz - 250 W load

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    • Figure 9. EVL6563S-250W TM PFC: input current waveform @230 V-50 Hz - 70 W load

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    • Figure 10. EVL6563S-250W TM PFC: input current waveform @100 V-50 Hz - 70 W load

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    • Figure 11. EVL6563S-250W TM PFC: power factor vs. output power

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    • Figure 12. EVL6563S-250W TM PFC: THD vs. output power

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    • Figure 13. EVL6563S-250W TM PFC: efficiency vs. output power

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    • Figure 14. EVL6563S-250W TM PFC: average efficiency acc. to ES-2

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    • Figure 15. EVL6563S-250W TM PFC: static Vout regulation vs. output power

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  • 4.2 MOSFET current, TM signals, and L6563S THD optimizer

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    • Figure 16. EVL6563S-250W TM PFC: MOSFET current at 100 Vac - 50 Hz - full load

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    • Figure 17. EVL6563S-250W TM PFC: MOSFET current at 100 Vac - 50 Hz - full load

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    • Figure 18. EVL6563S-250W TM PFC: L6563S control pins-1 at 115 Vac - 60 Hz - full load

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    • Figure 19. EVL6563S-250W TM PFC: L6563S control pins-2 at 115 Vac - 60 Hz - full load

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  • 4.3 Voltage feed-forward and brown-out function

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    • Figure 20. L6562A input mains surge 90 Vac to 140 Vac - no VFF input

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    • Figure 21. EVL6563S-250W TM PFC: input mains surge 90 Vac to 140 Vac

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    • Figure 22. L6562A: input mains dip 140 Vac to 90 Vac - no VFF input

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    • Figure 23. EVL6563S-250W TM PFC: input mains dip 140 Vac to 90 Vac

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    • Figure 24. L6563 Input current at 100 Vac - 50Hz CFF=0.47 µF, RFF=390 kW

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    • Figure 25. EVL6563S-250W TM PFC: input current at 100 Vac -50 Hz CFF=1 µF, RFF=1 MW

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    • Figure 26. EVL6563S-250W TM PFC: startup attempt at 80 Vac-60 Hz - full load

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    • Figure 27. EVL6563S-250W TM PFC: startup with slow input voltage increasing - full load

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    • Figure 28. EVL6563S-250W TM PFC: turn-off with slow input voltage decreasing - full load

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  • 4.4 Startup operation

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    • Figure 29. EVL6563S-250W TM PFC: startup at 90 Vac-60 Hz - full load

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    • Figure 30. EVL6563S-250W TM PFC: startup at 265 Vac-50 Hz - full load

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  • 4.5 PFC_OK pin and feedback failure (open-loop) protection

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    • Figure 31. EVL6563S-250W load transient at 115 Vac - 60 Hz - full load to no-load

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    • Figure 32. EVL6563S-250W TM PFC: open- loop at 115 Vac - 60 Hz - full load

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    • Figure 33. EVL6563S-250W TM PFC: open- loop at 115 Vac - 60 Hz - full load - long acquisition

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  • 4.6 TBO (tracking boost option)

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  • 4.7 Power management and housekeeping functions

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    • Figure 34. L6563S on/off control by a cascaded converter controller via the PFC_OK or RUN pin

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    • Figure 35. Interface circuits that let the L6563S switch on or off a PWM controller - not latched

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    • Figure 36. Interface circuits that let the L6563S switch on or off a PWM controller - latched

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• 5 Layout hints

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  • Figure 37. EVL6563S-250W TM PFC: PCB layout (SMT side view)

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• 6 Thermal map

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  • Figure 38. Thermal map at 115 Vac - 60 Hz - full load - PCB top side

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  • Figure 39. Thermal map at 230 Vac - 50 Hz - full load - PCB top side

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  • Table 2. Thermal maps reference points - PCB top side

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• 7 EMI filtering and conducted EMI pre-compliance measurements

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  • Figure 40. EVL6563S-250W CE AVG measurement at 115 Vac-60 Hz - full load - phase wire

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  • Figure 41. EVL6563S-250W CE AVG measurement at 115 Vac-60 Hz - full load - neutral wire

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  • Figure 42. EVL6563S-250W CE AVG measurement at 230 Vac-50 Hz - full load - phase wire

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  • Figure 43. EVL6563S-250W CE AVG measurement at 230 Vac-50 Hz - full load - neutral wire

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• 8 References

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• 9 Revision history

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  • Table 3. Document revision history

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