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LED2000 Fiches technique(PDF) 35 Page - STMicroelectronics

No de pièce LED2000
Description  3 A monolithic step-down current source with synchronous rectification
PDF  40 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LED2000 Fiches technique(HTML) 35 Page - STMicroelectronics

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DocID023432 Rev 4
35/40
LED2000
Typical characteristics
40
Figure 28. LED current falling edge
Figure 29. Hiccup current protection
Figure 30. Efficiency vs. IOUT (VIN 32 V)
Figure 31. Thermal shutdown protection
To maximize the dimming
performan ce the embedded LS
discharges C OUT when D IM goes low.
(D IM = 0 & & V FB > 60mV ):
the low side is enabled
as long as I L > -1A
(implements negative
current limitation)
AM12917v1
AM12918v1
130 ns typ.
AM12919v1
AM12920v1



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