Техническая Спецификация (EVL6699-90WADP)СодержаниеTable 1. Device summary1Figure 1. Block diagram11 Description42 Electrical ratings5Table 2. Absolute maximum ratings53 Thermal data5Table 3. Thermal data54 Pin connections6Figure 2. Pin connections (top view)6Table 4. Pin functions6Figure 3. Typical system block diagram85 Electrical data9Table 5. Electrical characteristics96 Application information12Figure 4. Multimode operation of the L6699126.1 Oscillator13Figure 5. Oscillator's internal block diagram13Table 6. Recommended values for CF as a function of the startup frequency fstart14Figure 6. Oscillator waveforms and their relationship with gate-driving signals146.2 Adaptive deadtime15Figure 7. Adaptive deadtime: principle schematic16Figure 8. Relevant timing diagrams16Figure 9. Detailed view of deadtime during low-to-high transition of half bridge midpoint166.3 Safe-start procedure17Figure 10. Comparison startup behavior: traditional controller (left), with L6699 (right)18Figure 11. Comparison of initial cycles after startup: traditional controller (left), with L6699 (right)19Figure 12. Soft-start circuit20Figure 13. Input impedance vs. frequency curve in an LLC resonant half bridge207 Operation at no load or very light load21Figure 14. Narrow input voltage range21Figure 15. Wide input voltage range21Figure 16. Load-dependent operating modes: timing diagram22Figure 17. How the L6699 can switch off a PFC controller at light load238 Current sensing, OCP and OLP24Figure 18. Current sensing techniques with sense resistor24Figure 19. Current sensing techniques “lossless”, with capacitive shunt24Figure 20. Soft-start and delayed shutdown upon overcurrent timing diagram (safe- start details are not shown)279 Capacitive-mode detection function28Figure 21. Details of hard-switching transition during capacitive-mode operation2810 Line sensing function30Figure 22. Line sensing function: internal block diagram and timing diagram3111 Latched shutdown3212 Bootstrap section32Figure 23. Bootstrap supply: standard circuit33Figure 24. Bootstrap supply: internal bootstrap synchronous diode3313 Package information34Figure 25. SO16N dimensions34Figure 26. Package drawing35Figure 27. Recommended footprint (dimensions are in mm)3614 Revision history37Table 7. Document revision history37Размер: 954,8 КБСтраницы: 38Язык: EnglishПросмотреть
