LM239QT

{
  "slug": "lm239qt",
  "version": "0.1.0",
  "type": "component",
  "description": "STMicroelectronics Comparators, QFN-16-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "amplifiers-comparators",
    "lm239qt",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm239qt.kicad_sym",
    "lm239qt.kicad_mod",
    "lm239qt.glb",
    "lm239qt.step",
    "lm239qt.lbr",
    "docs/hero.png",
    "docs/lm239qt-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm239qt-hero.glb",
    "lm239qt-hero.overlay.json"
  ],
  "component": {
    "mpn": "LM239QT",
    "manufacturer": "STMicroelectronics",
    "package": "QFN-16-EP(3x3)",
    "pin_count": 17,
    "category": "Amplifiers/Comparators",
    "subcategory": "Comparators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588954737697415168",
    "parts": {
      "symbol": "lm239qt.kicad_sym",
      "footprint": "lm239qt.kicad_mod",
      "model_3d": "lm239qt-hero.glb",
      "model_3d_plain": "lm239qt.glb",
      "model_3d_step": "lm239qt-etched.step",
      "model_3d_step_plain": "lm239qt.step",
      "lbr": "lm239qt.lbr"
    },
    "distributor_links": {
      "lcsc": 2935139,
      "digikey": "497-13140-2-ND",
      "mouser": "511-LM239QT"
    },
    "distributor_check": {
      "checked_at": "2026-10-06T17:20:28Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-13140-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "511-LM239QT",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VCC+",
        "type": "power_in",
        "description": "Positive supply; datasheet gives 2 to 32 V single supply (absolute maximum 36 V)."
      },
      {
        "number": "2",
        "name": "IN-1",
        "type": "input",
        "description": "Inverting input of comparator 1; common-mode range 0 to VCC+ - 1.5 V."
      },
      {
        "number": "3",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "4",
        "name": "IN+1",
        "type": "input",
        "description": "Non-inverting input of comparator 1; common-mode range 0 to VCC+ - 1.5 V."
      },
      {
        "number": "5",
        "name": "IN-2",
        "type": "input",
        "description": "Inverting input of comparator 2; common-mode range 0 to VCC+ - 1.5 V."
      },
      {
        "number": "6",
        "name": "IN+2",
        "type": "input",
        "description": "Non-inverting input of comparator 2; common-mode range 0 to VCC+ - 1.5 V."
      },
      {
        "number": "7",
        "name": "IN-3",
        "type": "input",
        "description": "Inverting input of comparator 3; common-mode range 0 to VCC+ - 1.5 V."
      },
      {
        "number": "8",
        "name": "IN+3",
        "type": "input",
        "description": "Non-inverting input of comparator 3; common-mode range 0 to VCC+ - 1.5 V."
      },
      {
        "number": "9",
        "name": "IN-4",
        "type": "input",
        "description": "Inverting input of comparator 4; common-mode range 0 to VCC+ - 1.5 V."
      },
      {
        "number": "10",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "11",
        "name": "IN+4",
        "type": "input",
        "description": "Non-inverting input of comparator 4; common-mode range 0 to VCC+ - 1.5 V."
      },
      {
        "number": "12",
        "name": "VCC-",
        "type": "power_in",
        "description": "Negative supply or ground for single-supply operation."
      },
      {
        "number": "13",
        "name": "OUT4",
        "type": "output",
        "description": "Open-collector output of comparator 4; max output current about 20 mA, 250 mV typ saturation at 4 mA sink."
      },
      {
        "number": "14",
        "name": "OUT3",
        "type": "output",
        "description": "Open-collector output of comparator 3; max output current about 20 mA, 250 mV typ saturation at 4 mA sink."
      },
      {
        "number": "15",
        "name": "OUT2",
        "type": "output",
        "description": "Open-collector output of comparator 2; max output current about 20 mA, 250 mV typ saturation at 4 mA sink."
      },
      {
        "number": "16",
        "name": "OUT1",
        "type": "output",
        "description": "Open-collector output of comparator 1; max output current about 20 mA, 250 mV typ saturation at 4 mA sink."
      },
      {
        "number": "17",
        "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-sonnet-5-5",
        "primary_mode": "text+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The QFN16 drawing shows a dashed exposed-pad outline in the center with no pin number or connection ; Open-collector output type is inferred from the schematic (Figure 2, output transistor) and the outp",
          "exposed pad 17 added from the footprint",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 19,
        "cost_usd": 0.3425,
        "at": "2026-10-06T17:20:15"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588954737697415168",
        "pages": 19,
        "sha256": "5adc47258717f516",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 17,
        "described": 17,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    }
  }
}