Datasheet

PIN 1 ID
1
24
7
18
19
20
21
22
23
2 3 4 5 6
8
9
10
11
12
1314151617
PIN 1 ID
1
24
7
18
19
20
21
22
23
2 3 4 5 6
8
9
10
11
12
1314151617
BOTTOM VIEW TOP VIEW
LM3549
SNVS640A –AUGUST 2010–REVISED MAY 2013 www.ti.com
Figure 2. 24–Pin WQFN Package, No Pullback
See package number RTW0024A
Pin Descriptions
Name Pin No. Type Description
NC 1
L1 2 A Inductor positive terminal 1
L1 3 A Inductor positive terminal 2
GND_SW 4 G SMPS ground
L2 5 A Inductor negative terminal 1
L2 6 A Inductor negative terminal 2
VOUT 7 A Buck boost output terminal 1
NC 8
VOUT 9 A Buck boost output terminal 2
R_EN 10 DI Red output enable
VDDS 11 P Supply voltage
G_EN 12 DI Green output enable
B_EN 13 DI Blue output enable
PWM 14 DI Master fader input
GND 15 G Ground
R_OUT 16 A R output
G_OUT 17 A G output
B_OUT 18 A B output
FAULT 19 DO Fault detection interrupts output. Active LOW open drain output.
SDA 20 DI/O I2C Data
SCL 21 DI I2C Clock
EN 22 DI Enable and IO reference level
VDDP 23 P SMPS supply voltage
NC 24
2 Submit Documentation Feedback Copyright © 2010–2013, Texas Instruments Incorporated
Product Folder Links: LM3549