LM3429_14 Datasheet, PDF (40/50 Pages) Texas Instruments – LM3429Q1 N-Channel Controller for Constant Current LED Drivers

LM3429
SNVS616F – APRIL 2009 – REVISED JANUARY 2010
DESIGN #6: BUCK APPLICATION - 3 LEDS AT 1.25A
15V ± 50V
V_IN
C_IN
R_T
C_CMP
R_CSH
C_T
1
V_IN
LM3429
2
COMP
14
HSN
R_HSN
13
HSP
R_HSP
3
CSH
12
IS
4
RCT
5
AGND
11
V_CC
C_BYP
10
GATE
R_UV2
R_UV1
6
OVP
7
nDIM
DAP
9
PGND
8
NC
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C_FS
R_FS
D1
1.25A
I_LED
L1
Q1
R_LIM
R_SNS
C_O
R_OV2
Q2
C_OV R_OV1
Design #6 Bill of Materials
Qty
Part ID
1
LM3429
1
C_CMP
1
C_F
1
C_FS
2
C_IN
1
C_O
1
C_OV
1
C_T
1
D1
1
L1
1
Q1
1
Q2
1
R_CSH
1
R_T
1
R_FS
2
R_HSP, R_HSN
1
R_LIM
1
R_OV1
1
R_OV2
1
R_SNS
1
R_UV1
1
R_UV2
Part Value
Boost controller
0.015 µF X7R 10% 50V
2.2 µF X7R 10% 16V
0.01 µF X7R 10% 50V
6.8 µF X7R 10% 50V
1 µF X7R 10% 50V
47 pF COG/NPO 5% 50V
1000 pF COG/NPO 5% 50V
Schottky 60V 5A
22 µH 20% 7.3A
NMOS 60V 8A
PNP 150V 600 mA
12.4 kΩ 1%
49.9 kΩ 1%
10Ω 1%
1.0 kΩ 1%
0.04Ω 1% 1W
21.5 kΩ 1%
499 kΩ 1%
0.08Ω 1% 1W
11.5 kΩ 1%
100 kΩ 1%
Manufacturer
NSC
MURATA
MURATA
MURATA
TDK
TDK
AVX
MURATA
COMCHIP
COILCRAFT
VISHAY
FAIRCHILD
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
Part Number
LM3429MH
GRM21BR71H153KA01L
GRM21BR71C225KA12L
GRM21BR71H103KA01L
C4532X7R1H685K
C4532X7R1H105K
08055A470JAT2A
GRM2165C1H102JA01D
CDBC560-G
MSS1278-223MLB
SI4436DY
MMBT5401
CRCW080512K4FKEA
CRCW080549K9FKEA
CRCW080510R0FKEA
CRCW08051K00FKEA
WSL2512R0400FEA
CRCW080521K5FKEA
CRCW0805499KFKEA
WSL2512R0800FEA
CRCW080511K5FKEA
CRCW0805100KFKEA
40
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