LM3421MH/NOPB National Semiconductor, LM3421MH/NOPB Datasheet - Page 36

• 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 #3 Bill of Materials
Qty
1
1
1
3
1
0
4
4
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
Part ID
LM3421
C
C
C
C
C
C
C
C
C
D1
D2
L1
Q1, Q2
Q3
Q4
Q5
Q6
Q7
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
B
BYP
CMP
F
FS
IN
O
OV
T
CSH
F
FS
UV2
HSP
LIM
OV1
OV2
POT
PU
SER
SNS
T
UV1
UVH
, R
, C
HSN
REF
, C
SS
Part Value
Buck-boost controller
100 pF COG/NPO 5% 50V
2.2 µF X7R 10% 16V
1 µF X7R 10% 25V
0.1 µF X7R 10% 25V
DNP
6.8 µF X7R 10% 50V
10 µF X7R 10% 50V
47 pF COG/NPO 5% 50V
1000 pF COG/NPO 5% 50V MURATA
Schottky 100V 12A
Zener 10V 500mA
22 µH 20% 7.2A
NMOS 60V 8A
NMOS 60V 260mA
PNP 40V 200 mA
PNP 150V 600 mA
NPN 300V 600 mA
NPN 40V 200 mA
12.4 kΩ 1%
10Ω 1%
0Ω 1%
10.0 kΩ 1%
1.0 kΩ 1%
0.04Ω 1% 1W
18.2 kΩ 1%
499 kΩ 1%
1 MΩ potentiometer
4.99 kΩ 1%
499Ω 1%
0.05Ω 1% 1W
41.2 kΩ 1%
1.43 kΩ 1%
17.4 kΩ 1%
36
Manufacturer
NSC
MURATA
MURATA
MURATA
MURATA
TDK
TDK
AVX
VISHAY
ON-SEMI
COILCRAFT
VISHAY
ON-SEMI
FAIRCHILD
FAIRCHILD
FAIRCHILD
FAIRCHILD
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
BOURNS
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
Part Number
LM3421MH
GRM2165C1H101JA01D
GRM21BR71C225KA12L
GRM21BR71E105KA01L
GRM21BR71E104KA01L
C5750X7R1H685K
C4532X7R1H106K
08055A470JAT2A
GRM2165C1H102JA01D
12CWQ10FNPBF
BZX84C10LT1G
MSS1278-223MLB
SI4436DY
2N7002ET1G
MMBT5087
MMBT5401
MMBTA42
MMBT6428
CRCW080512K4FKEA
CRCW080510R0FKEA
CRCW08050000Z0EA
CRCW080510K0FKEA
CRCW08051K00FKEA
WSL2512R0400FEA
CRCW080518K2FKEA
CRCW0805499KFKEA
3352P-1-105
CRCW08054K99FKEA
CRCW0805499RFKEA
WSL2512R0500FEA
CRCW080541K2FKEA
CRCW08051K43FKEA
CRCW080517K4FKEA