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LM3405AXMY Datasheet(PDF) 20 Page - Texas Instruments

Part # LM3405AXMY
Description  LM3405A 1.6MHz, 1A Constant Current Buck LED Driver with Internal ensation in Tiny SOT and VSSOP PowerPAD Packages
PDF  32 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LM3405AXMY Datasheet(HTML) 20 Page - Texas Instruments

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LM3405A
VIN
VIN
EN/DIM
BOOST
SW
FB
GND
C3
D1
D2
D3
C5
R2
C1
DC or
PWM
L1
C2
R1
IF
LED1
C4
VOUT
LM3405A
SNVS508C – OCTOBER 2007 – REVISED MAY 2013
www.ti.com
Figure 28. VBOOST derived from VIN through a Shunt Zener Diode (D3) (VIN = 18V, IF = 1A)
Table 5. Bill of Materials for Figure 28
Part ID
Part Value
Part Number
Manufacturer
U1
1A LED Driver
LM3405A
Texas Instruments
Semiconductor
C1, Input Cap
10µF, 25V, X5R
ECJ-3YB1E106K
Panasonic
C2, Output Cap
1µF, 10V, X7R
GRM319R71A105KC01D
Murata
C3, Boost Cap
0.01µF, 16V, X7R
0805YC103KAT2A
AVX
C4, Feedforward Cap
1µF, 10V, X7R
GRM319R71A105KC01D
Murata
C5, Shunt Cap
0.1µF, 16V, X7R
GRM219R71C104KA01D
Murata
D1, Catch Diode
Schottky, 0.5V at 1A, VR = 30V
SS13
Vishay
D2, Boost Diode
Schottky, 0.36V at 15mA
CMDSH-3
Central Semiconductor
D3, Zener Diode
4.7V, 350mW, SOT-23
BZX84C4V7
Fairchild
L1
6.8µH, 1.5A
SLF6028T-6R8M1R5
TDK
R1
0.2
Ω, 0.5W, 1%
WSL2010R2000FEA
Vishay
R2
1.91k
Ω, 1%
CRCW08051K91FKEA
Vishay
LED1
1.5A, White LED
LXK2-PW14
Lumileds
20
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Product Folder Links: LM3405A



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