LM3401MMX

{
  "slug": "lm3401mmx",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments LED Drivers, MSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "nixie tube driver-led driver",
    "lm3401mmx",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm3401mmx.kicad_sym",
    "lm3401mmx.kicad_mod",
    "lm3401mmx.glb",
    "lm3401mmx.step",
    "lm3401mmx.lbr",
    "docs/hero.png",
    "docs/lm3401mmx-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm3401mmx-hero.glb",
    "lm3401mmx-hero.overlay.json"
  ],
  "component": {
    "mpn": "LM3401MMX",
    "manufacturer": "Texas Instruments",
    "package": "MSOP-8",
    "pin_count": 8,
    "category": "Nixie Tube Driver/LED Driver",
    "subcategory": "LED Drivers",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm3401",
    "parts": {
      "symbol": "lm3401mmx.kicad_sym",
      "footprint": "lm3401mmx.kicad_mod",
      "model_3d": "lm3401mmx-hero.glb",
      "model_3d_plain": "lm3401mmx.glb",
      "model_3d_step": "lm3401mmx-etched.step",
      "model_3d_step_plain": "lm3401mmx.step",
      "lbr": "lm3401mmx.lbr"
    },
    "distributor_links": {
      "lcsc": "C11131"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T19:49:57Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CS",
        "type": "input",
        "description": "Current sense pin, connected to the PFET drain; the datasheet gives an absolute maximum range of -2.0V to 36V for CS."
      },
      {
        "number": "2",
        "name": "DIM",
        "type": "input",
        "description": "Dimming input; when DIM is low the HG drive is off, and it can be driven by a logic-level PWM signal (absolute maximum -0.3V to 36V)."
      },
      {
        "number": "3",
        "name": "SNS",
        "type": "input",
        "description": "Current feedback pin connected to the LED cathode; a resistor from this pin to ground sets the DC LED current (absolute maximum -0.3V to 8V)."
      },
      {
        "number": "4",
        "name": "HYS",
        "type": "passive",
        "description": "Hysteresis adjust pin; a resistor from this pin to GND sets the hysteresis window (absolute maximum -0.3V to 4V)."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin for the controller; the datasheet asks that the SNS, HYS and GND connections use an isolated ground area and be grounded close to this pin."
      },
      {
        "number": "6",
        "name": "HG",
        "type": "output",
        "description": "Gate drive output that connects to the PFET gate."
      },
      {
        "number": "7",
        "name": "VIN",
        "type": "power_in",
        "description": "Power supply input, operating range 4.5V to 35V with an absolute maximum of 36V."
      },
      {
        "number": "8",
        "name": "ILIM",
        "type": "passive",
        "description": "Current limit adjust pin; a resistor from this pin to the PFET source sets the current limit threshold (absolute maximum -0.3V to 36V)."
      }
    ],
    "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's pin table (page 2) defines the 8-lead VSSOP (DGK) pinout. The hint 'MSOP-8' is the s; Pin types are KiCad ERC classes I assigned from the pin function text, since the datasheet does not ; The absolute maximum voltages in the descriptions come from the Absolute Maximum Ratings table on pa"
        ],
        "pages_sent": 9,
        "cost_usd": 0.0504,
        "at": "2026-10-08T19:49:43"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm3401",
        "pages": 26,
        "sha256": "5fa65167b595991e",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "lm3401mmx.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          0.95
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "847c4c5023fe1603fbd36900a5dcc4bd3901ba473f71d42c9a469f0236eaadf3",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm3401mmx-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          0.95
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "61b7b580798b92239166dcbb674e08d27b8f5437dc092f3e3b5c6c51e4d16da4",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}