LM3429_14 Datasheet, PDF (39/50 Pages) Texas Instruments – LM3429Q1 N-Channel Controller for Constant Current LED Drivers

LM3429
www.ti.com
SNVS616F – APRIL 2009 – REVISED JANUARY 2010
DESIGN #5: BUCK-BOOST PWM DIMMING APPLICATION - 6 LEDs at 500mA
10V ± 70V
L1
D1
V_IN
C_IN
R_T
1
V_IN
LM3429
14
HSN
R_HSN
500 mA
C_CMP
2
COMP
13
HSP
R_HSP
I_LED
C_O
R_CSH
3
CSH
12
IS
R_UV2
R_UV1
C_T
4
RCT
5
AGND
R_UVH
PWM
6
OVP
7
nDIM
D2
DAP
11
V_CC
C_BYP
10
GATE
9
PGND
8
NC
C_FS
R_SNS
V_IN
R_FS
Q1
R_OV2
V_IN
Q2
C_OV
R_OV1
Design #5 Bill of Materials
Qty
Part ID
1
LM3429
1
C_CMP
1
C_F
1
C_FS
3
C_IN
1
C_O
1
C_OV
1
C_T
1
D1
1
D2
1
L1
1
Q1
1
Q2
1
R_CSH
1
R_FS
2
R_HSP, R_HSN
1
R_OV1
1
R_OV2
1
R_SNS
1
R_T
1
R_UV1
1
R_UV2
1
R_UVH
Part Value
Boost controller
0.68 µF X7R 10% 25V
2.2 µF X7R 10% 16V
0.1 µF X7R 10% 25V
4.7 µF X7R 10% 100V
6.8 µF X7R 10% 50V
47 pF COG/NPO 5% 50V
1000 pF COG/NPO 5% 50V
Schottky 100V 12A
Schottky 30V 500 mA
68 µH 20% 4.3A
NMOS 100V 32A
PNP 150V 600 mA
12.4 kΩ 1%
10Ω 1%
1.0 kΩ 1%
15.8 kΩ 1%
499 kΩ 1%
0.2Ω 1% 1W
35.7 kΩ 1%
1.43 kΩ 1%
10 kΩ 1%
17.4 kΩ 1%
Manufacturer
NSC
MURATA
MURATA
MURATA
TDK
TDK
AVX
MURATA
VISHAY
ON SEMI
COILCRAFT
VISHAY
FAIRCHILD
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
Part Number
LM3429MH
GRM21BR71E684KA88L
GRM21BR71C225KA12L
GRM21BR71E104KA01L
C5750X7R2A475K
C4532X7R1H685K
08055A470JAT2A
GRM2165C1H102JA01D
12CWQ10FNPBF
BAT54T1G
MSS1278-683MLB
FDD3682
MMBT5401
CRCW080512K4FKEA
CRCW080510R0FKEA
CRCW08051K00FKEA
CRCW080515K8FKEA
CRCW0805499KFKEA
WSL2512R2000FEA
CRCW080535K7FKEA
CRCW08051K43FKEA
CRCW080510K0FKEA
CRCW080517K4FKEA
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