Datasheet

Setup
6 LP8556TM-EVM User’s Guide August 2012
2.3. LP8556TM-EVM Setup
Figures 3 and 4 illustrate how to properly configure the LP8556TM-EVM.
I2C I/O Pull-up Select:
Install jumper as shown
To connect VIN to VDD
install jumper as shown
Current sense
resistors (0.5W )
are optional.
Install 0W
VIN
VDDIO
GND
1.62V to 3.6V
2.7V to 20V
Termination resistor
(50W ) is optional
LED current sense
resistors (10W ) are
optional
Install jumpers as shown
to bypass the LED
current sense resistors
Install ISET resistor at R3
(24.3 kW ) if ISET_EN=1
.
Figure 3: LP8556TM-EVM Configuration
Figure 4: Sense Resistors on the LED Current Sinks Detail