Data Sheet (EVALHVLED805)Table of ContentsTable 1. Device summary1Figure 1. Application diagram11 Description32 Maximum ratings4Table 2. Absolute maximum ratings4Table 3. Thermal data43 Electrical characteristics5Table 4. Electrical characteristics54 Pin connection7Figure 2. Pin connection (top view)7Table 5. Pin functions8Figure 3. COSS output capacitance variation9Figure 4. Off state drain and source current test circuit9Figure 5. Start-up current test circuit10Figure 6. Quiescent current test circuit10Figure 7. Operating supply current test circuit11Figure 8. Quiescent current during fault test circuit115 Application information12Figure 9. Multi-mode operation of HVLED805 (Constant voltage operation)125.1 Power section and gate driver135.2 High voltage startup generator13Figure 10. High-voltage start-up generator: internal schematic13Figure 11. Timing diagram: normal power-up and power-down sequences145.3 Secondary side demagnetization detection and triggering block15Figure 12. DMG block, triggering block15Figure 13. Drain ringing cycle skipping as the load is progressively reduced165.4 Constant voltage operation16Figure 14. Voltage control principle: internal schematic175.5 Constant current operation18Figure 15. Current control principle19Figure 16. Constant current operation: Switching cycle waveforms205.6 Voltage feedforward block20Figure 17. Feedforward compensation: internal schematic215.7 Burst-mode operation at no load or very light load22Figure 18. Load-dependent operating modes: timing diagrams235.8 Soft-start and starter block235.9 Hiccup mode OCP23Figure 19. Hiccup-mode OCP: timing diagram245.10 Layout recommendations24Figure 20. Suggested routing for converter256 Package mechanical data26Table 6. SO16N mechanical data26Figure 21. Package dimensions277 Revision history28Table 7. Document revision history28Size: 473 KBPages: 29Language: EnglishOpen manual