Datasheet Summary
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
D1
ZHCS1000
C1
100uF/6V3
U1
ZXSC400
VDRIVE
STDN
ISENSE
Q1
FMMT617
C2
100uF/6V3
LED1
LXHL-PW01
R1
22mohm
R2
0.82ohm
Figure 1 Schematic diagram
Ref. Value
Package Part number Manufacturer Contact details Notes
U1...