LM3421MH/NOPB National Semiconductor, LM3421MH/NOPB Datasheet - Page 38

• 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 #4 Bill of Materials
Qty
1
1
1
1
4
4
1
1
2
1
1
1
1
1
1
1
1
1
1
2
1
3
1
1
1
1
1
1
1
Part ID
LM3423
C
C
C
C
C
C
C
D1, D2
D3
L1
Q1
Q2
Q3
Q4, Q5 (dual pack) Dual PNP 40V 200mA
Q6
Q7
R
R
R
R
R
R
R
R
R
R
R
R
BYP
CMP
FS
IN
O
OV
T
ADJ
BIAS2
CSH
FS
HSP
LIM
OV2
SNS
T
UV1
UV2
UVH
, R
, R
HSN
OV1
, R
MAX
Part Value
Boost controller
2.2 µF X7R 10% 16V
1 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
1000 pF COG/NPO 5% 50V MURATA
Schottky 60V 5A
Zener 10V 500mA
47 µH 20% 5.3A
NMOS 60V 8A
PMOS 70V 5.7A
NMOS 60V 260mA
NPN 300V 600mA
NPN 40V 200 mA
100 kΩ potentiometer
17.4 kΩ 1%
12.4 kΩ 1%
10Ω 1%
1.0 kΩ 1%
0.06Ω 1% 1W
499 kΩ 1%
0.15Ω 1% 1W
35.7 kΩ 1%
1.43 kΩ 1%
10.0 kΩ 1%
16.9 kΩ 1%
38
Manufacturer
NSC
MURATA
MURATA
MURATA
TDK
TDK
AVX
COMCHIP
ON-SEMI
COILCRAFT
VISHAY
ZETEX
ON-SEMI
FAIRCHILD
FAIRCHILD
FAIRCHILD
BOURNS
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
Part Number
LM3423MH
GRM21BR71C225KA12L
GRM21BR71E105KA01L
GRM21BR71E104KA01L
C5750X7R2A475K
C4532X7R1H106K
08055A470JAT2A
GRM2165C1H102JA01D
CDBC560-G
BZX84C10LT1G
MSS1278-473MLB
SI4436DY
ZXMP7A17K
2N7002ET1G
FFB3906
MMBTA42
MMBT3904
3352P-1-104
CRCW080517K4FKEA
CRCW080512K4FKEA
CRCW080510R0FKEA
CRCW08051K00FKEA
WSL2512R0600FEA
CRCW0805499KFKEA
WSL2512R1500FEA
CRCW080535K7FKEA
CRCW08051K43FKEA
CRCW080510K0FKEA
CRCW080516K9FKEA