(PDF) DN68 Datasheet - ZXSC310 High power torch reference design

Número de pieza	DN68
Descripción	ZXSC310 High power torch reference design
Fabricantes	Zetex Semiconductors
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No Preview Available ! www.DataSheet4U.com DN68 ZXSC310 High power torch reference design Description This design note shows a typical ZXSC310 LED driver circuit for a high powered LED torch. The input voltage ranges from 0.7V to 1.6V with a maximum output current of 335mA at 1.4V input. A typical schematic diagram is shown in Figure 1. VIN C1 L1 U1 Vcc Vdrive Stdn Isense Gnd ZXSC310 D1 Q1 R1 C2 C3 Figure 1 Schematic diagram Reference Value Part number Manufacturer Contact details Comments U1 ZXSC310E5 Zetex www.zetex.com LED driver in SOT23-5 Q1 FMMT617 Zetex www.zetex.com Low sat. NPN in SOT23 D1 2A ZHCS2000 Zetex www.zetex.com 2A Schottky in SOT23 L1 7.5␮H DO3316P-153x2 Coilcraft www.coilcraft.com ISAT = 3A R1 19.5m⍀ Generic Generic NA 0805 size C1 1␮F Generic Generic NA C2 220␮F Generic Generic NA C3 100␮F Generic Generic NA Table 1 Bill of materials Issue 2 - July 2006 © Zetex Semiconductors plc 2006 1 www.zetex.com 1 page

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