Datasheet

C
O
D1
OVP
LM3429
nDIM
V
IN
PGND
NC
DAP
GATE
COMP
CSH
RCT
IS
HSN
HSP
L1
C
IN
C
BYP
R
LIM
Q1
C
CMP
R
CSH
C
T
R
UV2
R
UV1
1
2
3
4
5
6
7
14
13
12
11
10
9
8
R
HSN
R
HSP
AGND
R
T
Q2
R
UVH
PWM
R
SNS
R
FS
C
FS
I
LED
R
OV1
R
OV2
C
OV
V
IN
8V - 28V
1A
V
CC
LM3429, LM3429-Q1
SNVS616G –APRIL 2009–REVISED MAY 2013 www.ti.com
APPLICATIONS INFORMATION
DESIGN #2: BOOST PWM DIMMING APPLICATION - 9 LEDs at 1A
Design #2 Bill of Materials
Qty Part ID Part Value Manufacturer Part Number
1 LM3429 Boost controller TI LM3429MH
2 C
CMP
, C
FS
0.1 µF X7R 10% 25V MURATA GRM21BR71E104KA01L
1 C
F
2.2 µF X7R 10% 16V MURATA GRM21BR71C225KA12L
2, 1 C
IN
, C
O
6.8 µF X7R 10% 50V TDK C4532X7R1H685K
1 C
OV
47 pF COG/NPO 5% 50V AVX 08055A470JAT2A
1 C
T
1000 pF COG/NPO 5% 50V MURATA GRM2165C1H102JA01D
1 D1 Schottky 60V 5A COMCHIP CDBC560-G
1 L1 33 µH 20% 6.3A COILCRAFT MSS1278-333MLB
1 Q1 NMOS 60V 8A VISHAY SI4436DY
1 Q2 NMOS 60V 115 mA ON SEMI 2N7002ET1G
2 R
CSH
, R
OV1
12.4 kΩ 1% VISHAY CRCW080512K4FKEA
1 R
FS
10Ω 1% VISHAY CRCW080510R0FKEA
2 R
HSP
, R
HSN
1.0 kΩ 1% VISHAY CRCW08051K00FKEA
1 R
LIM
0.06Ω 1% 1W VISHAY WSL2512R0600FEA
1 R
OV2
499 kΩ 1% VISHAY CRCW0805499KFKEA
1 R
SNS
0.1Ω 1% 1W VISHAY WSL2512R1000FEA
1 R
T
35.7 kΩ 1% VISHAY CRCW080535K7FKEA
1 R
UV1
1.82 kΩ 1% VISHAY CRCW08051K82FKEA
1 R
UV2
10 kΩ 1% VISHAY CRCW080510KFKEA
1 R
UVH
17.8 kΩ 1% VISHAY CRCW080517K8FKEA
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