LM3424 Datasheet, PDF (52/69 Pages) National Semiconductor (TI) – Constant Current N-Channel Controller with Thermal Foldback for Driving LEDs

LM3424, LM3424-Q1
SNVS603C – AUGUST 2009 – REVISED AUGUST 2015
8.2.5.2 Detailed Design Procedure
QTY
1
1
3
1
1
4
4
1
1
1
1
1
1
1
1
1
3
1
1
3
1
1
2
2
1
1
1
PART ID
LM3424
C_BYP
C_CMP, C_REF, C_SS
C_NTC
C_FS
C_IN
C_OUT
C_OV
D1
L1
Q1
Q2
Q3, Q4 (dual pack)
R_ADJ
R_BIAS
R_BIAS2
R_CSH, R_OV1, R_UV1
R_FS
R_GAIN
R_HSP, R_HSN, R_MAX
R_LIM
R_OV2
R_REF1, R_REF2
R_SLP, R_T
R_SNS
R_UV2
NTC
Table 4. Bill of Materials
PART VALUE
Boost controller
2.2 µF X7R 10% 16V
1 µF X7R 10% 25V
0.33 µF X7R 10% 25V
0.1 µF X7R 10% 25V
4.7 µF X7R 10% 100V
10 µF X7R 10% 50V
47 pF COG/NPO 5% 50V
Schottky 60V 5A
47 µH 20% 5.3A
NMOS 60V 8A
NPN 40V 200 mA
Dual PNP 40V 200mA
100 kΩ potentiometer
9.76 kΩ 1%
17.4 kΩ 1%
12.4 kΩ 1%
10Ω 1%
6.55 kΩ 1%
1.0 kΩ 1%
0.06Ω 1% 1W
499 kΩ 1%
49.9 kΩ 1%
10.0 kΩ 1%
0.15Ω 1% 1W
100 kΩ 1%
Thermistor 100 kΩ 5%
MANUFACTURER
TI
MURATA
MURATA
MURATA
MURATA
TDK
TDK
AVX
COMCHIP
COILCRAFT
VISHAY
FAIRCHILD
FAIRCHILD
BOURNS
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
TDK
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PART NUMBER
LM3424MH
GRM21BR71C225KA12L
GRM21BR71E105KA01L
GRM21BR71E334KA01L
GRM21BR71E104KA01L
C5750X7R2A475K
C4532X7R1H106K
08055A470JAT2A
CDBC560-G
MSS1278-473MLB
SI4436DY
MMBT3904
FFB3906
3352P-1-104
CRCW08059K76FKEA
CRCW080517K4FKEA
CRCW080512K4FKEA
CRCW080510R0FKEA
CRCW08056K55FKEA
CRCW08051K00FKEA
WSL2512R0600FEA
CRCW0805499KFKEA
CRCW080549K9FKEA
CRCW080510K0FKEA
WSL2512R1500FEA
CRCW0805100KFKEA
NTCG204H154J
52
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