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| LM3553 Datasheet, PDF (18/26 Pages) National Semiconductor (TI) – 1.2A Dual Flash LED Driver System with I2C Compatible | |||
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LM3553
SNVS414B â FEBRUARY 2008 â REVISED MAY 2013
LM3553 CONFIGURATIONS
2.2 PH
CIN
10 PF
RSET
COUT
4.7 PF
SW
OVP
VIN
D1
FEN
D2
LM3553
TX
ISET
GND SCL SDA
M/F
VIO
www.ti.com
600 mA Flash
Current
Components:
L = Toko FDSE0312-2R2M
CIN = Murata GRM188R60J106ME47D
COUT = Murata GRM21BR61E475KA12L
LEDs = Lumileds LXCL ± PWF3
Or equivalent
Figure 23. 2 LEDs @ 600mA with Battery Input
2.2 µH
CIN
10 µF
RSET
COUT
10 µF
SW
OVP
VIN
D1
FEN
D2
LM3553
TX
ISET
GND SCL SDA
M/F
VIO
1.2A Flash
Current
Figure 24. 1 LED @ 1.2A with Battery Input
18
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