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| LM3553 Datasheet, PDF (19/26 Pages) National Semiconductor (TI) – 1.2A Dual Flash LED Driver System with I2C Compatible | |||
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www.ti.com
VIN = +5V
VREF
+
-
CIN
10 µF
2.2 µH
LM3553
SNVS414B â FEBRUARY 2008 â REVISED MAY 2013
COUT
4.7 µF
SW
OVP
VIN
D1
FEN
D2
LM3553
1.2A Flash
Current
RSET
TX
ISET
GND SCL SDA
M/F
VIO
Figure 25. 2 LEDs @ 1.2A with +5V Input
2.2 µH
+4.975V @ 700 mA
CIN
10 µF
COUT
10 µF
SW
OVP
VIN
D1
FEN
D2
LM3553
RSET
TX
ISET
GND SCL SDA
M/F
VIO
Figure 26. Voltage Mode @ 700mA with Battery Input
Copyright © 2008â2013, Texas Instruments Incorporated
Product Folder Links: LM3553
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