LM3466MRX

{
  "slug": "lm3466mrx",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments LED Drivers, SOIC-8-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "led drivers",
    "lm3466mrx",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm3466mrx.kicad_sym",
    "lm3466mrx.kicad_mod",
    "lm3466mrx.glb",
    "lm3466mrx.step",
    "lm3466mrx.lbr",
    "docs/hero.png",
    "docs/lm3466mrx-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm3466mrx-hero.glb",
    "lm3466mrx-hero.overlay.json"
  ],
  "component": {
    "mpn": "LM3466MRX",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-8-EP",
    "pin_count": 9,
    "category": "LED Drivers",
    "subcategory": "LED Drivers",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm3466",
    "parts": {
      "symbol": "lm3466mrx.kicad_sym",
      "footprint": "lm3466mrx.kicad_mod",
      "model_3d": "lm3466mrx-hero.glb",
      "model_3d_plain": "lm3466mrx.glb",
      "model_3d_step": "lm3466mrx-etched.step",
      "model_3d_step_plain": "lm3466mrx.step",
      "lbr": "lm3466mrx.lbr"
    },
    "distributor_links": {
      "lcsc": "C2678531"
    },
    "distributor_check": {
      "checked_at": "2026-10-12T04:40:42Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "ILED",
        "type": "input",
        "description": "Current regulator input connected to the drain of the integrated power MOSFET and the LED string cathode; the device is rated for 70 V maximum per LED string (absolute maximum 75 V to GND), and a capacitor to ground may be added to reduce noise on long LED cables."
      },
      {
        "number": "2",
        "name": "COMM",
        "type": "output",
        "description": "Open-drain status output that indicates startup, LED string active/inactive and thermal shutdown; it is pulled low at startup and under thermal protection, is pulled up to 6.0 V through a 10-kΩ resistor, and has an absolute maximum rating of 7 V to GND."
      },
      {
        "number": "3",
        "name": "VIN",
        "type": "power_in",
        "description": "Input voltage supply rated 6 V to 70 V (absolute maximum 75 V to GND) that should be decoupled with a 10-nF capacitor to ground."
      },
      {
        "number": "4",
        "name": "VEQ",
        "type": "output",
        "description": "Control voltage output that connects to the VEQ pin of other LM3466 devices through a 51-Ω resistor in series with a 1-µF capacitor to ground (absolute maximum 5 V to GND)."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground connection that connects to the ground plane and is also the reference for the device's absolute maximum ratings."
      },
      {
        "number": "6",
        "name": "SEN",
        "type": "input",
        "description": "Current sense input that senses the voltage of the external sensing resistor and regulates it to about 200 mV (absolute maximum 5 V to GND)."
      },
      {
        "number": "7",
        "name": "SRC",
        "type": "output",
        "description": "Source of the integrated power MOSFET that connects to the external current sensing resistor RSEN to ground (absolute maximum 5 V to GND)."
      },
      {
        "number": "8",
        "name": "SRC",
        "type": "output",
        "description": "Source of the integrated power MOSFET that connects to the external current sensing resistor RSEN to ground; the datasheet lists this pin together with pin 7 as the single SRC function (absolute maximum 5 V to GND)."
      },
      {
        "number": "9",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "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: The datasheet pin table lists SRC as one function spanning pins 7 and 8 of the DDA package; each is ; The exposed thermal pad of the DDA package is not a numbered pin in the datasheet (it is described o; The datasheet labels VIN as type 'I' (input). It is listed here as power_in because it is the supply",
          "exposed pad 9 added from the footprint"
        ],
        "pages_sent": 24,
        "cost_usd": 0.0829,
        "at": "2026-10-12T04:40:28"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm3466",
        "pages": 24,
        "sha256": "cbb2154e987b744e",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 9,
        "described": 9,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "lm3466mrx.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.55
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "2d6f7e774e8143e3320cbd59eb5be9f3b7864614644e3b072006e1eb05fb7fa6",
        "checked": "2026-10-12",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm3466mrx-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.55
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "7b1fbb632297a3383057723fab311a2ee5a4638eed5f2c41dd3777965279b950",
        "checked": "2026-10-12",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}