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STMicroelectronics
LED815 Evaluation Boards EVALHVLED815W15
Data Sheet
STMicroelectronics LED815 Evaluation Boards EVALHVLED815W15 EVALHVLED815W15 Data Sheet
Product codes
EVALHVLED815W15
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HVLED815PF
List of figures
Doc ID 023409 Rev 4
3/36
List of figures
Figure 1.
Application circuit for high power factor LED driver - single range input. . . . . . . . . . . . . . . . 4
Figure 2.
Application circuit for standard LED driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 3.
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 4.
Pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
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
Figure 11.
Multi-mode operation of HVLED815PF (constant voltage operation) . . . . . . . . . . . . . . . . . 16
Figure 12.
High-voltage start-up generator: internal schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 13.
Timing diagram: normal power-up and power-down sequences . . . . . . . . . . . . . . . . . . . . 18
Figure 14.
DMG block, triggering block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 15.
Drain ringing cycle skipping as the load is progressively reduced . . . . . . . . . . . . . . . . . . . 19
Figure 16.
Current control principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 17.
Constant current operation: switching cycle waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 18.
Voltage control principle: internal schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 19.
Feed-forward compensation: internal schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 20.
Load-dependent operating modes: timing diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 21.
Hiccup-mode OCP: timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 22.
High power factor implementation connection - single range input . . . . . . . . . . . . . . . . . . 28
Figure 23.
Suggested routing for the led driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 24.
SO16N mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 25.
SO16N drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 26.
SO16N recommended footprint (dimensions are in mm) . . . . . . . . . . . . . . . . . . . . . . . . . . 34
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