FM4115K.

{
  "slug": "fm4115k",
  "version": "0.1.0",
  "type": "component",
  "description": "Shenzhen Fuman LED Drivers, SOT-89-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "led drivers",
    "fm4115k.",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "fm4115k.kicad_sym",
    "fm4115k.kicad_mod",
    "fm4115k.glb",
    "fm4115k.step",
    "fm4115k.lbr",
    "docs/hero.png",
    "docs/fm4115k-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "fm4115k-hero.glb",
    "fm4115k-hero.overlay.json",
    "fm4115k-etched.glb"
  ],
  "component": {
    "mpn": "FM4115K.",
    "manufacturer": "Shenzhen Fuman",
    "package": "SOT-89-5",
    "pin_count": 5,
    "category": "LED Drivers",
    "subcategory": "LED Drivers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603384292567498752",
    "parts": {
      "symbol": "fm4115k.kicad_sym",
      "footprint": "fm4115k.kicad_mod",
      "model_3d": "fm4115k-hero.glb",
      "model_3d_plain": "fm4115k-etched.glb",
      "model_3d_step": "fm4115k-etched.step",
      "model_3d_step_plain": "fm4115k.step",
      "lbr": "fm4115k.lbr"
    },
    "distributor_links": {
      "lcsc": "C22396980"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T09:33:20Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "error"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "SW",
        "type": "output",
        "description": "Drain of the internal power switch, rated -0.3 to 45 V, with 1.5 A maximum switch output current and 1.2 A continuous (ISWmean); keep the SW trace as short as possible."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Common ground for signal and power; it should be kept well grounded and the datasheet asks for a large copper contact area with the thermal PAD."
      },
      {
        "number": "3",
        "name": "DIM",
        "type": "input",
        "description": "Switch enable, analog and PWM dimming input: below 0.3 V turns the LED current off, 2.5 V or above gives full LED current, and the absolute maximum rating is -0.3 to 6 V."
      },
      {
        "number": "4",
        "name": "CSN",
        "type": "input",
        "description": "Current-sense input, with the sense resistor connected between CSN and VIN; the rating is +0.3 to -6.0 V relative to VIN, and the sense voltage is 100 mV typical (95 to 105 mV)."
      },
      {
        "number": "5",
        "name": "VIN",
        "type": "power_in",
        "description": "Supply input with an operating range of 6 V to 30 V and an absolute maximum of -0.3 to 45 V, which must be bypassed by a low-ESR capacitor (minimum 4.7 uF for DC input) placed close to the pin."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin numbers and names are taken from the pin table on page 1 (SOT89-5 listed as the package for FM41; The MPN suffix 'K.' is a wildcard in the datasheet title and the datasheet does not list separate or; The SW pin type 'output' is my KiCad classification of a power-switch drain node (the datasheet does"
        ],
        "pages_sent": 16,
        "cost_usd": 0.0579,
        "at": "2026-10-19T09:31:05"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603384292567498752",
        "pages": 16,
        "sha256": "31f5b2bfb75ddd74",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "file": "fm4115k.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.2,
          4.5,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "5bf9133f79d12f58c4da043d3892ba5cec700de6f3255a5358e7ec3200be4733",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "fm4115k-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "1f4ace5be489a1f49d80e9f37ed6d4443d96a981884e27a993dcd571b02fabe8",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}