Datasheet

D1
Q2
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
I
LED
R
OV2
C
O
R
SNS
AGND
R
T
R
FS
C
FS
V
IN
R
OV1
C
OV
V
CC
1.25A
15V ± 50V
LM3429, LM3429-Q1
SNVS616G –APRIL 2009–REVISED MAY 2013 www.ti.com
DESIGN #6: BUCK APPLICATION - 3 LEDS AT 1.25A
Design #6 Bill of Materials
Qty Part ID Part Value Manufacturer Part Number
1 LM3429 Boost controller TI LM3429MH
1 C
CMP
0.015 µF X7R 10% 50V MURATA GRM21BR71H153KA01L
1 C
F
2.2 µF X7R 10% 16V MURATA GRM21BR71C225KA12L
1 C
FS
0.01 µF X7R 10% 50V MURATA GRM21BR71H103KA01L
2 C
IN
6.8 µF X7R 10% 50V TDK C4532X7R1H685K
1 C
O
1 µF X7R 10% 50V TDK C4532X7R1H105K
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 22 µH 20% 7.3A COILCRAFT MSS1278-223MLB
1 Q1 NMOS 60V 8A VISHAY SI4436DY
1 Q2 PNP 150V 600 mA FAIRCHILD MMBT5401
1 R
CSH
12.4 kΩ 1% VISHAY CRCW080512K4FKEA
1 R
T
49.9 kΩ 1% VISHAY CRCW080549K9FKEA
1 R
FS
10Ω 1% VISHAY CRCW080510R0FKEA
2 R
HSP
, R
HSN
1.0 kΩ 1% VISHAY CRCW08051K00FKEA
1 R
LIM
0.04Ω 1% 1W VISHAY WSL2512R0400FEA
1 R
OV1
21.5 kΩ 1% VISHAY CRCW080521K5FKEA
1 R
OV2
499 kΩ 1% VISHAY CRCW0805499KFKEA
1 R
SNS
0.08Ω 1% 1W VISHAY WSL2512R0800FEA
1 R
UV1
11.5 kΩ 1% VISHAY CRCW080511K5FKEA
1 R
UV2
100 kΩ 1% VISHAY CRCW0805100KFKEA
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