Datasheet

CONTROL
LOGIC
REGISTERS
I2C SLAVE
SDA
SCL
EN
LEVEL SHIFTERS
R_EN
G_EN
B_EN
R_OUT
G_OUT
B_OUT
DRIVER
CONTROL,
VOLTAGE
CONTROL,
CURRENT
LIMIT AND
FAULT
DETECTION
R SENS
G SENS
B SENS
3
ENABLES
VREF
FAULT
GND GND_SW
VOUT
EEPROM
IREF OSC TSD UVLO
GND
GND
GND
SWITCHER
CONTROL
L1 L2
VDDP
PWM
GND_SW GND_SW
VDDS
FAULT
P1
N1
P2
N2
N3
GND_SW
N4
LM3549
www.ti.com SNVS640A –AUGUST 2010–REVISED MAY 2013
BLOCK DIAGRAM
Figure 3. LM3549 Block Diagram
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