LM3429MH/NOPB National Semiconductor, LM3429MH/NOPB Datasheet - Page 27

• Manufacturer Part Number: LM3429MH/NOPB
• Description: IC LED DRVR HP CONS CURR 14TSSOP
• Manufacturer: National Semiconductor
• Series: PowerWise®r
• Type: High Power, Constant Currentr

Specifications of LM3429MH/NOPB

• Constant Current: Yes
• Topology: PWM, SEPIC, Step-Down (Buck), Step-Up (Boost)
• Number Of Outputs: 1
• Internal Driver: No
• Type - Primary: Automotive
• Type - Secondary: High Brightness LED (HBLED)
• Frequency: 2MHz
• Voltage - Supply: 4.5 V ~ 75 V
• Mounting Type: Surface Mount
• Package / Case: 14-TSSOP Exposed Pad, 14-eTSSOP 14-HTSSOP
• Operating Temperature: -40°C ~ 125°C
• Current - Output / Channel: 1A
• Internal Switch(s): No
• Efficiency: 95%
• For Use With: LM3429BSTEVAL - BOARD EVAL FOR BOOST LM3429LM3429BKBSTEVAL - BOARD EVAL FOR BUCK-BOOST LM3429
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Other names: LM3429MH

DESIGN #3: BUCK-BOOST ANALOG DIMMING APPLICATION - 4 LEDs at 2A
Design #3 Bill of Materials
Qty
1
1
1
1
2, 1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
Part ID
LM3429
C
C
C
C
C
C
D1
L1
Q1
Q2
R
R
R
R
R
R
R
R
R
R
R
CMP
F
FS
IN
OV
T
ADJ
CSH
FS
HSP
LIM
OV1
OV2
SNS
T
UV1
UV2
, C
, R
O
HSN
Part Value
Boost controller
1.0 µF X7R 10% 10V
2.2 µF X7R 10% 16V
0.1 µF X7R 10% 50V
6.8 µF X7R 10% 50V
47 pF COG/NPO 5% 50V
1000 pF COG/NPO 5% 50V MURATA
Schottky 60V 5A
22 µH 20% 7.2A
NMOS 60V 8A
PNP 150V 600 mA
1.0 MΩ potentiometer
12.4 kΩ 1%
10Ω 1%
1.0 kΩ 1%
0.04Ω 1% 1W
18.2 kΩ 1%
499 kΩ 1%
0.05Ω 1% 1W
41.2 kΩ 1%
21 kΩ 1%
150 kΩ 1%
27
Manufacturer
NSC
MURATA
MURATA
MURATA
TDK
AVX
VISHAY
COILCRAFT
VISHAY
FAIRCHILD
BOURNS
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
Part Number
LM3429MH
GRM21BR71A105KA01L
GRM21BR71C225KA12L
GRM21BR71E104KA01L
C4532X7R1H685K
08055A470JAT2A
GRM2165C1H102JA01D
CDBC560-G
MSS1278-223MLB
SI4436DY
MMBT5401
3352P-1-105
CRCW080512K4FKEA
CRCW080510R0FKEA
CRCW08051K00FKEA
WSL2512R0400FEA
CRCW080518K2FKEA
CRCW0805499KFKEA
WSL2512R0500FEA
CRCW080541K2FKEA
CRCW080521K0FKEA
CRCW0805150KFKEA
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