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LX1994 датащи(PDF) 9 Page - Microsemi Corporation

номер детали LX1994
подробное описание детали  High Efficiency LED Driver
PDF  13 Pages
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производитель  MICROSEMI [Microsemi Corporation]
домашняя страница  http://www.microsemi.com
Logo MICROSEMI - Microsemi Corporation

LX1994 датащи(HTML) 9 Page - Microsemi Corporation

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LX1994
PRODUCTION DATA SHEET
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 9
High Efficiency LED Driver
Copyright
© 2003
Rev. 1.0d, 2006-02-09
TM
®
APPLICATION CIRCUITS
DRV
SRC
OVP
S/P
VIN
BRT
V
IN = 2.0V to 5.5V
GND
LX1994
FB
33uH
FDV303
UPS5819
LS
CMP
PWM dimming
0.1uF
0.1uF
15
1M
51k
Figure 4 – LED Driver with PWM Dimming applied to S/P Input
OFF
ON
DIMMING
DRV
SRC
OVP
S/P
VIN
BRT
V
IN = 2.0V to 5.5V
GND
LX1994
FB
33uH
FDV303
UPS5819
LS
CMP
0.1uF
15
1M
51k
Figure 5 – LED Driver with DC Dimming applied to BRT Input
Note:
The component values shown are only examples for a working system. Actual values will vary greatly depending
on desired parameters, efficiency, and layout constraints.



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