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ALED6000 датащи(PDF) 13 Page - STMicroelectronics

номер детали ALED6000
подробное описание детали  Automotive 3 A single channel LED driver with integrated DC-DC converter
PDF  45 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
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ALED6000 датащи(HTML) 13 Page - STMicroelectronics

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Refer also to Section 6.2 Output capacitor and inductor selection for output capacitor design hints.
The dimming performance depends on the current pulse shape specification of the final application.
Figure 8. Dimming operation
DIM
t
T
LED
rise
t fall
T
DIM
I LED
The ideal current pulse has rectangular shape; however, in any case it degenerates into a trapezoid or, at worst,
into a triangle, depending on the ratio (tRISE + tFALL)/ TLED.
Figure 9. Dimming operation (rising edge) – VIN=44 V, 12 LED
ALED6000
Digital dimming
DS13018 - Rev 4
page 13/45



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