Инструкции для STMicroelectronics LED815 Evaluation Boards EVALHVLED815W15

Содержание

• Table 1. Device summary

  1
• 1 Principle application circuit and block diagram

  4
  • 1.1 Principle application circuit

    4
    • Figure 1. Application circuit for high power factor LED driver - single range input

      4
    • Figure 2. Application circuit for standard LED driver

      5
  • 1.2 Block diagram

    6
    • Figure 3. Block diagram

      6
• 2 Pin description and connection diagrams

  7
  • Figure 4. Pin connection (top view)

    7
  • 2.1 Pin description

    7
    • Table 2. Pin description

      7
  • 2.2 Thermal data

    8
    • Table 3. Thermal data

      8
• 3 Electrical specifications

  10
  • 3.1 Absolute maximum ratings

    10
    • Table 4. Absolute maximum ratings

      10
  • 3.2 Electrical characteristics

    10
    • Table 5. Electrical characteristics

      10
    • Figure 5. OFF-state drain and source current test circuit

      12
    • Figure 6. COSS output capacitance variation

      13
    • Figure 7. Startup current test circuit

      13
    • Figure 8. Quiescent current test circuit

      13
    • Figure 9. Operating supply current test circuit

      14
    • Figure 10. Quiescent current during fault test circuit

      14
• 4 Device description

  15
  • 4.1 Application information

    15
    • Figure 11. Multi-mode operation of HVLED815PF (constant voltage operation)

      16
  • 4.2 Power section and gate driver

    16
  • 4.3 High voltage startup generator

    17
    • Figure 12. High-voltage start-up generator: internal schematic

      17
    • Figure 13. Timing diagram: normal power-up and power-down sequences

      18
  • 4.4 Secondary side demagnetization detection and triggering block

    18
    • Figure 14. DMG block, triggering block

      18
    • Figure 15. Drain ringing cycle skipping as the load is progressively reduced

      19
  • 4.5 Constant current operation

    20
    • Figure 16. Current control principle

      20
    • Figure 17. Constant current operation: switching cycle waveforms

      20
  • 4.6 Constant voltage operation

    22
    • Figure 18. Voltage control principle: internal schematic

      23
  • 4.7 Voltage feed-forward block

    23
    • Figure 19. Feed-forward compensation: internal schematic

      24
  • 4.8 Burst-mode operation at no load or very light load

    25
    • Figure 20. Load-dependent operating modes: timing diagrams

      26
  • 4.9 Soft-start and starter block

    26
  • 4.10 Hiccup mode OCP

    26
    • Figure 21. Hiccup-mode OCP: timing diagram

      27
  • 4.11 High Power Factor implementation

    27
    • Figure 22. High power factor implementation connection - single range input

      28
  • 4.12 Layout recommendations

    30
    • Figure 23. Suggested routing for the led driver

      31
• 5 Package information

  32
  • Figure 24. SO16N mechanical data

    32
  • Figure 25. SO16N drawing

    33
  • Figure 26. SO16N recommended footprint (dimensions are in mm)

    34
• 6 Revision history

  35
  • Table 6. Document revision history

    35