SWB
VOUTB
SWF
VOUTF
GND
GND
GND
D1F
A1
D2F
B1
EN
C1
D1B
D1
D2B
E1
O
U
T
F
1
A
2
O
U
T
F
2
B
2
T
X
C
2
S
C
L
D
2
O
V
P
B
E
2
G
N
D
F
A
4
G
N
D
F
B
4
V
IN
C
4
P
W
M
D
4
S
W
B
E
4
GNDB
E3
SDA
D3
STROBE
C3
SWF2
B3
SW1F
A3
U1
LM3639
GND
SWF
VOUTB
VOUTF
SWB
VIN
TX
SCL
VINF
VINB
VIN
GND
1
2
J2
1
2
J7
GND
1
2
J13
D1B
D2B
D1B
D2B
D1F
D2F
EN
PWM
SDA
STROBE
GND
GND
1
2
J17
1
2
J18
1
2
J11
1
2
J12
D1F
D2F
1
2
J5
SDA
SCL
3.3V
GND
GND
VINF
VINB
0
R2
0
R1
1
2
J4
1
2
J10
1
2
J15
1
2
3
J22
PWM
1
2
3
J23
EN
1
2
3
J25
TX
4
1
2
3
J29
I2C
VIO
SCL
SDA
GND
PWM
EN
TX
1
2
3
J27
STROBE
STROBE
VIO
PWM2
GND
GND
GND
GND
1
2
3
J24
VIO
3.3V
VIO
VIN
1
2
J9
1
2
J8
VOUTF
VOUTF
1
2
J3
1
2
J16
GND
GND
1
2
3
J26
L1B
GND
1
2
3
J28
L2B
GND
J1
6091
J6
6092
J14
6091
1
2
3
4
5
6
7
8
9
10
J19
30310-6002HB
L2
—+
D24
D22
D20
D18
D16
D14
D12
D10
D8
D6
D4
D25
D23
D21
D19
D17
D15
D13
D11
D9
D7
D5
L1
1uH
PWM0
PWM1
PWM0
PWM1
PWM2
0.1
R3
0.1
R4
3.01
R5
3.01
R6
1.0k
R7
1.0k
R8
VIO
SDA
SCL
D2
D3
D1
NSR0240V2T1G
GND
1
2
3
J30
GND
1
2
3
J31
GND
GND
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
J20
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
J21
TP1
10 uF
C1
10 uF
C2
10 uF
C4
10 uF
C5
1 uF
C6
1 uF
C7
—)
C3
CBATT
LOGO
PCB
Texas Instruments
FID2
FID1
FID3
SV600873
A1
PCB Number:
PCB Rev:
SH-J1
SH-J3
SH-J2
SH-J4
SH-J5
SH-J6
SH-J7
SH-J8
SH-J9
SH-J10
Schematic
4
Schematic
Figure 10. LM3639A EVM Schematic
Table 2. Bill of Materials
Item Desi
Description
Manufacturer
Part Number
Quantity
gnat
or
1
AA1 Printed Circuit Board
TI
551600784-002 REVA
1
2
U1
IC, LM3639A Single Chip 40V Bac 1.5A
TI
LM3639AYFQT
1
Flash LED Driver
3
C1,
CAP, CERM, 10uF, 6.3V, X5R 20%, 0402
Murata
GRM155R60J106ME4
4
C2,
4D
C4,
C5
4
C3
CAP, CERM, 100uF, 6.3V, +/-20%, X5R, 1206
Murata
GRM188R60J106ME4
1
7D
5
C6,
CAP, CERM, 1F, 50V, X5R, 10%, 0603
TDK
CGA4J3X7R1H105K
2
C7
6
D1
Diode, Schottky, 40V, 250A, SOD523
ON Semiconductor
NSR0240V2T1G
1
7
D2,
LED,White SMT
Philips Lumileds
LXCL-EYW4
2
D3
7
SNVU211 – March 2013
LM3639AYFQEVM User's Guide
Copyright © 2013, Texas Instruments Incorporated
