Texas Instruments LM3549 Evaluation Board LM3549SQEV/NOPB LM3549SQEV/NOPB Datenbogen
Produktcode
LM3549SQEV/NOPB
PIN 1 ID
1
24
7
18
19
20
21
22
23
2
3
4
5
6
8
9
10
11
12
13
14
15
16
17
PIN 1 ID
1
24
7
18
19
20
21
22
23
2
3
4
5
6
8
9
10
11
12
13
14
15
16
17
BOTTOM VIEW
TOP VIEW
SNVS640A – AUGUST 2010 – REVISED MAY 2013
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
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