LM3421MH/NOPB National Semiconductor, LM3421MH/NOPB Datasheet - Page 42

• Manufacturer Part Number: LM3421MH/NOPB
• Description: IC LED DRVR HP CONS CURR 16TSSOP
• Manufacturer: National Semiconductor
• Series: PowerWise®r
• Type: High Power, Constant Currentr

Specifications of LM3421MH/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
• Voltage - Output: 3 V ~ 72 V
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP Exposed Pad, 16-eTSSOP, 16-HTSSOP
• Operating Temperature: -40°C ~ 125°C
• Current - Output / Channel: 1A
• Internal Switch(s): No
• Efficiency: 95%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: *LM3421MH/NOPB; LM3421MH

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DESIGN #6 Bill of Materials
Qty
1
1
2
0
4
0
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
3
1
1
1
Part ID
LM3423
C
C
C
C
C
C
C
D1
D2
L1
Q1
Q2
Q3
Q4
R
R
R
R
R
R
R
R
R
R
BYP
CMP
FS
IN
O
OV
T
CSH
FS
HSP
LIM
OV1
OV2
PU
T
SNS
UV1
, R
, R
, C
PU2
HSN
DIM
, R
UV2
Part Value
Buck controller
2.2 µF X7R 10% 16V
0.1 µF X7R 10% 25V
DNP
4.7 µF X7R 10% 100V
DNP
47 pF COG/NPO 5% 50V
1000 pF COG/NPO 5% 50V MURATA
Schottky 100V 12A
Zener 10V 500mA
22 µH 20% 7.3A
NMOS 60V 8A
PMOS 30V 6.2A
NMOS 60V 115mA
PNP 150V 600 mA
12.4 kΩ 1%
0Ω 1%
1.0 kΩ 1%
0.04Ω 1% 1W
21.5 kΩ 1%
499 kΩ 1%
100 kΩ 1%
35.7 kΩ 1%
0.08Ω 1% 1W
11.5 kΩ 1%
42
Manufacturer
NSC
MURATA
MURATA
TDK
AVX
VISHAY
ON-SEMI
COILCRAFT
VISHAY
VISHAY
ON-SEMI
FAIRCHILD
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
Part Number
LM3423MH
GRM21BR71C225KA12L
GRM21BR71E104KA01L
C5750X7R2A475K
08055A470JAT2A
GRM2165C1H102JA01D
12CWQ10FNPBF
BZX84C10LT1G
MSS1278-223MLB
SI4436DY
SI3483DV
2N7002ET1G
MMBT5401
CRCW080512K4FKEA
CRCW08050000OZEA
CRCW08051K00FKEA
WSL2512R0400FEA
CRCW080521K5FKEA
CRCW0805499KFKEA
CRCW0805100KFKEA
CRCW080535K7FKEA
WSL2512R0800FEA
CRCW080511K5FKEA