Datasheet

D1
OVP
LM3429
nDIM
PGND
NC
DAP
GATE
COMP
CSH
RCT
IS
HSN
HSP
L1
C
IN
C
BYP
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
500 mA
C
O
R
SNS
AGND
R
T
R
FS
C
FS
I
LED
Q2
R
OV2
R
OV1
C
OV
V
IN
V
IN
V
IN
10V ± 70V
V
IN
V
CC
R
UVH
PWM
D2
LM3429, LM3429-Q1
www.ti.com SNVS616G –APRIL 2009–REVISED MAY 2013
DESIGN #5: BUCK-BOOST PWM DIMMING APPLICATION - 6 LEDs at 500mA
Design #5 Bill of Materials
Qty Part ID Part Value Manufacturer Part Number
1 LM3429 Boost controller TI LM3429MH
1 C
CMP
0.68 µF X7R 10% 25V MURATA GRM21BR71E684KA88L
1 C
F
2.2 µF X7R 10% 16V MURATA GRM21BR71C225KA12L
1 C
FS
0.1 µF X7R 10% 25V MURATA GRM21BR71E104KA01L
3 C
IN
4.7 µF X7R 10% 100V TDK C5750X7R2A475K
1 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 100V 12A VISHAY 12CWQ10FNPBF
1 D2 Schottky 30V 500 mA ON SEMI BAT54T1G
1 L1 68 µH 20% 4.3A COILCRAFT MSS1278-683MLB
1 Q1 NMOS 100V 32A VISHAY FDD3682
1 Q2 PNP 150V 600 mA FAIRCHILD MMBT5401
1 R
CSH
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
OV1
15.8 kΩ 1% VISHAY CRCW080515K8FKEA
1 R
OV2
499 kΩ 1% VISHAY CRCW0805499KFKEA
1 R
SNS
0.2Ω 1% 1W VISHAY WSL2512R2000FEA
1 R
T
35.7 kΩ 1% VISHAY CRCW080535K7FKEA
1 R
UV1
1.43 kΩ 1% VISHAY CRCW08051K43FKEA
1 R
UV2
10 kΩ 1% VISHAY CRCW080510K0FKEA
1 R
UVH
17.4 kΩ 1% VISHAY CRCW080517K4FKEA
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