Check LED Driver Components

flux

Follow these steps to add the missing components from your BOM into your project:
  1. Review the BOM File
    Open the

    LED_Driver_Partial_BOM.csv

    DesignatorQuantityValueDescriptionFootprintManufacturerMPNNotes
    U11LT3743IFELED driver controller, 4‑36 V synchronous buckTSSOP‑28 (FE)Analog DevicesLT3743IFE#PBF
    L11222NL2.2 µH coupled inductor / transformerCustom shielded pot‑coreCoilcraft222NL
    Q1140 V 4.4 mΩ N‑MOSFETSync‑buck high‑side FETSON‑8 5 × 6 mmTexas InstrumentsCSD18504Q5A
    Q3140 V 4.4 mΩ N‑MOSFETSync‑buck low‑side FETSON‑8 5 × 6 mmTexas InstrumentsCSD18504Q5A
    Q4140 V 4.4 mΩ N‑MOSFETLED shunt FETSON‑8 5 × 6 mmTexas InstrumentsCSD18504Q5A
    D11Schottky diode 40 V 0.5 ABootstrap / freewheel diodeSOD‑123onsemiMBR0540T1GMarking code EQ – verify
    D111SBR diode 45 V 10 AShunt‑loop rectifierPOWERDI‑5Diodes IncorporatedSBR10B45P5‑13
    R310.005 Ω 1 % 3 W4‑terminal current‑sense shunt2512 KelvinYageoPA2512FKF7W0R005L
    R811 Ω 1 % 1 WDamping resistor in shunt loop2512YageoRC2512FR‑071RL
    R11510 ΩLink / jumper0603Generic
    R241TBDUVLO divider (top)0603Measure or check schematic
    R301TBDUVLO divider (bottom)0603Measure or check schematic
    R311TBDCTRL_H bias0603
    R321TBDCTRL_L bias0603
    R33113 kΩ 1 %RT resistor (sets fSW)0603GenericBody code 133
    R341220 kΩ 1 %RT resistor (alt)0603GenericBody code 224 (?)
    R481TBDFB divider0603
    C142122 µF 50 V X7SVIN bulk MLCC1210MurataGRM32ER71H226KE20L
    C143122 µF 50 V X7SVIN bulk MLCC1210MurataGRM32ER71H226KE20L
    C51220 nF 50 V X7RBootstrap cap0603MurataGRM188R71H224KE11
    C911 µF 16 V X7RSoft‑start cap0603MurataGRM188R71C105KA12
    C1714.7 µF 16 V X7RVCC_INT bypass0603MurataGRM188R71C475KE15
    C15133 nF 50 V X7RSnubber / filter0603MurataGRM188R71H333KA01
    C191100 nF 50 V X7RCTRL_H filter0603Generic
    C201100 nF 50 V X7RCTRL_L filter0603Generic
    C211100 nF 50 V X7RCTRL_T filter0603Generic
    SC114 F 2.7 VSuper‑capacitor hold‑upRadial coin‑cell 22 mmYoung Electronics
    to see the list of components required.
  2. Open the Library Search Panel
    In the left column of the Flux editor, switch to the Library Search tab.
  3. Search for Each Component
    For each item in your BOM, type its name or part number into the library search bar. For example, if your BOM lists a decoupling capacitor, enter "100nF capacitor," "10μF capacitor," or the specific part number provided, as applicable.
  4. Add Components to the Schematic
    • Once you find a component in the library, drag it onto your schematic.
    • Ensure you update the designator as needed (e.g., R1 for resistors or U1 for ICs) to match your BOM.
    • Repeat this for each component listed in the BOM.
  5. Verify Component Details
    After placing the components, verify that their electrical specifications (values, footprints, etc.) match the entries from your BOM. You can click the component to review its properties in the right-side inspector.
  6. Save Your Schematic
    Once all parts are placed and their properties reviewed, save your schematic.
Following these steps will ensure that all items listed in your BOM are added to your project. If you need help with specific properties or placement tips, let me know!
Choose start component
Clarify component specs
Update designators
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C5
Capacitance
10uF
C3
Capacitance
100nF
Q1
C2
Capacitance
1uF
R5
Resistance
1kΩ
R4
Resistance
16kΩ
Q2
D1
U1
L2
Inductance
2.2µH
R3

LED_Driver

LED_Driver thumbnail
Welcome to your new project. Imagine what you can build here.

Properties

Properties describe core aspects of the project.

Pricing & Availability

Distributor

Qty 1

Arrow

$16.07–$20.79

Digi-Key

$20.65–$22.20

LCSC

$18.20

Mouser

$26.08

Verical

$10.82–$36.44

Controls