SL4139

{
  "slug": "sl4139",
  "version": "0.1.0",
  "type": "component",
  "description": "Slkor(SLKORMICRO Elec.) LED Drivers, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "led drivers",
    "sl4139",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sl4139.kicad_sym",
    "sl4139.kicad_mod",
    "sl4139.glb",
    "sl4139.step",
    "sl4139.lbr",
    "docs/hero.png",
    "docs/sl4139-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sl4139-hero.glb",
    "sl4139-hero.overlay.json",
    "sl4139-etched.glb"
  ],
  "component": {
    "mpn": "SL4139",
    "manufacturer": "Slkor(SLKORMICRO Elec.)",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "LED Drivers",
    "subcategory": "LED Drivers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/598c35eb10b2e470a68e3b5b63756641.pdf",
    "parts": {
      "symbol": "sl4139.kicad_sym",
      "footprint": "sl4139.kicad_mod",
      "model_3d": "sl4139-hero.glb",
      "model_3d_plain": "sl4139-etched.glb",
      "model_3d_step": "sl4139-etched.step",
      "model_3d_step_plain": "sl4139.step",
      "lbr": "sl4139.lbr"
    },
    "distributor_links": {
      "lcsc": "C5375302",
      "digikey": "5399-SL4139TR-ND"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T08:31:53Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "5399-SL4139TR-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "SW",
        "type": "passive",
        "description": "Drain of the internal power switch; connect inductor and Schottky diode anode here, with an internal over-voltage detection that enters low-power safe mode at 37V (abs max 40V)."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin, connect directly to the PCB ground plane."
      },
      {
        "number": "3",
        "name": "FB",
        "type": "input",
        "description": "Feedback pin clamped at 0.3V, connect to the cathode of the lowest LED and to resistor R1 to GND to set ILED = 0.3V/R1 (abs max 7V)."
      },
      {
        "number": "4",
        "name": "SHDN",
        "type": "input",
        "description": "Active-high shutdown logic input; below 0.4V the device is shut down, above 1.5V it is enabled (abs max 40V)."
      },
      {
        "number": "5",
        "name": "VIN",
        "type": "power_in",
        "description": "Supply input for the internal logic with a 3.3V to 32V input range, bypass with a 4.7uF ceramic capacitor to GND; device stops below 3.3V UVLO."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin types for SW (passive vs. power switch output) chosen by judgement; datasheet gives VIN range as"
        ],
        "pages_sent": 16,
        "cost_usd": 0.0671,
        "at": "2026-10-22T08:29:32"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/598c35eb10b2e470a68e3b5b63756641.pdf",
        "pages": 16,
        "sha256": "a517aa0a95a48db0",
        "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": [
      {
        "file": "sl4139.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "720a6eab0024069bbee68e7cb4c3ff1149468a34611225cdc852662c5d0ec2b7",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sl4139-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "4e6548c1d058ac89c6f68b7387d54a2bc7c64f98ba16286ab4ea287f70381e6e",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}