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LX1972AIBC Datasheet(PDF) 7 Page - Microsemi Corporation

Part # LX1972AIBC
Description  Ambient Light Detector
PDF  9 Pages
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Manufacturer  MICROSEMI [Microsemi Corporation]
Direct Link  http://www.microsemi.com
Logo MICROSEMI - Microsemi Corporation

LX1972AIBC Datasheet(HTML) 7 Page - Microsemi Corporation

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LX1972A
PRODUCTION DATA SHEET
Microsemi
Integrated Products Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 7
Ambient Light Detector
Copyright
© 2005
Rev. 1.0, 2006-09-18
TM
®
APPLICATION CIRCUITS
VSS
VDD
LX1972A
LX1995
IN
SHDN
GND
SW
FB
SHDN
C1
4.7µF
R1
100K
GND
VIN
L1 10µH
D1
UPS5817
C2
1µF
R6
15
R5
5.76K
R4
10K
C3
10µF
C4
0.1µF
R10
49.9K
R8
60.4K
3.3V
R7
24.9K
MMBT2907
Figure 7 –
Typical Application with Microsemi’s LX1995 LED Driver IC
VIN
S/P
BRT
LS
GND
DRV
SRC
OVP
FB
CMP
22µH
FDN337
UPS5819
1M
41.2K
0.1µF
4.99K
1µF
15K
22µF
178K
100K
VDD
VSS
3.3V
1µF
15
VIN = 2.0V to 5.5V
PWM Dimming Input
LX1972A
LX1994
MMBT2907
Figure 8 –
Typical Application with Microsemi’s LX1994 LED driver IC



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