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LM3402 Datasheet(PDF) 21 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part # LM3402
Description  0.5A Constant Current Buck Regulator for Driving High Power LEDs
PDF  22 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM3402 Datasheet(HTML) 21 Page - National Semiconductor (TI)

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Layout Considerations (Continued)
TABLE 1. BOM for Design Example 1
ID
Part Number
Type
Size
Parameters
Qty
Vendor
U1
LM3402
LED Driver
MSOP-8
40V, 0.5A
1
NSC
L1
SLF7045T-330MR82
Inductor
7.0x7.0 x4.5mm
33µH, 0.82A, 96m
Ω
1
TDK
D1
CMHSH5-4
Schottky Diode
SOD-123
40V, 0.5A
1
Central Semi
Cf
VJ0805Y104KXXAT
Capacitor
0805
100nF 10%
1
Vishay
Cb
VJ0805Y103KXXAT
Capacitor
0805
10nF 10%
1
Vishay
Cin
C3216X7R1H105M
Capacitor
1206
1µF 50V
1
TDK
Co
C2012X7R1A225M
Capacitor
0805
2.2 µF 10V
1
TDK
Rsns
ERJ6BQFR75V
Resistor
0805
0.75
Ω 1%
1
Panasonic
Ron
CRCW08055902F
Resistor
0805
59.0 k
Ω 1%
1
Vishay
TABLE 2. BOM for Design Example 2
ID
Part Number
Type
Size
Parameters
Qty
Vendor
U1
LM3402HV
LED Driver
MSOP-8
75V, 0.5A
1
NSC
L1
DO5022P-684
Inductor
18.5x15.2 x7.1mm
680µH, 1.2A, 1.1
Ω
1
Coilcraft
D1
CMMSH1-100
Schottky Diode
SOD-123F
100V, 1A
1
Central Semi
Cf
VJ0805Y104KXXAT
Capacitor
0805
100nF 10%
1
Vishay
Cb
VJ0805Y103KXXAT
Capacitor
0805
10nF 10%
1
Vishay
Cin
C4532X7R2A225M
Capacitor
1812
2.2µF 100V
1
TDK
Rsns
ERJ6BQFR56V
Resistor
0805
0.56
Ω 1%
1
Panasonic
Ron
CRCW08051214F
Resistor
0805
1.21M
Ω 1%
1
Vishay
www.national.com
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