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PDF DN79 Data sheet ( Hoja de datos )
| Número de pieza | DN79 | |
| Descripción | ZXSC400 1W LED driver | |
| Fabricantes | Zetex Semiconductors | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de DN79 (archivo pdf) en la parte inferior de esta página. Total 2 Páginas | ||
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DN79
ZXSC400 1W LED driver
Neil Wolstenholme, Applications Engineer, Zetex Semiconductors plc
Description
ZXSC400 is configured to the reference design below. The target application is a 1W white LED
driven from a two cell NiCd/NiMH or alkaline battery input for flashlights and high powered LED
driving.
The supply voltage for ZXSC400 reference design is: VIN = 1.8V ~ 3V.
L1
22uH
VIN
D1
ZHCS1000
C1
100uF/6V3
U1
ZXSC400
VCC
VDRIVE
STDN
ISENSE
GND
VFB
Q1
FMMT617
C2
100uF/6V3
LED1
LXHL-PW01
R1
22mohm
R2
0.82ohm
GND
Figure 1 Schematic diagram
Ref. Value
Package Part number Manufacturer Contact details Notes
U1 N/A
SOT23-6 ZXSC400E6 Zetex
www.zetex.com Boost converter
Q1 N/A
SOT23 FMMT617
Zetex
www.zetex.com Low sat NPN
transistor
D1 40V/1A SOT23 ZHCS1000
Zetex
www.zetex.com 40V/1A Schottky
diode
L1 22uH/2.5A N/A DO3316P-223 Coilcraft
www.coilcraft.com 22H/2.5A SMT
inductor
R1 22m⍀
0805
Generic
NA
0805 5% tolerance
R2 0.82⍀
0805
Generic
NA
0805 5% tolerance
C1 100F/6V3 1812 18126D107KAT2A AVX
www.avx.com 100F/6V3/X5R/1812
C2 100F/6V3 1812 18126D107KAT2A AVX
www.avx.com 100F/6V3/X5R/1812
LED1 1W
N/A LXHL-PW01 Lumileds www.lumileds.com 1W white LED
emitter
Table 1 Bill of materials
Issue 1 - May 2005
© Zetex Semiconductors plc 2005
1
www.zetex.com
1 page | ||
| Páginas | Total 2 Páginas | |
| PDF Descargar | [ Datasheet DN79.PDF ] | |
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