LM393

{
  "schema_version": 1,
  "type": "component",
  "slug": "lm393",
  "title": "LM393",
  "brief": "TI dual differential comparator, SOIC-8. Open-collector, single 2-36 V, input range includes ground. Datasheet-verified.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "comparator",
    "dual",
    "open-collector",
    "soic-8",
    "texas-instruments"
  ],
  "component": {
    "mpn": "LM393",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Comparator",
    "subcategory": "Dual differential comparator",
    "datasheet": "https://www.ti.com/lit/ds/symlink/lm393.pdf",
    "parts": {
      "symbol": "lm393.kicad_sym",
      "footprint": "lm393.kicad_mod",
      "model_3d": "lm393-etched.glb",
      "model_3d_plain": "lm393.glb",
      "lbr": "lm393.lbr",
      "model_3d_step": "lm393-etched.step",
      "model_3d_step_plain": "lm393.step"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "1OUT",
        "type": "output",
        "description": "Comparator 1 open-collector output. Requires an external pull-up resistor to VCC (typical 1 kΩ to 100 kΩ). Sinks up to 16 mA typical."
      },
      {
        "number": "2",
        "name": "1IN-",
        "type": "input",
        "description": "Comparator 1 inverting analog input. Input common-mode range includes ground; V(IN) from 0 V to VCC−1.5 V."
      },
      {
        "number": "3",
        "name": "1IN+",
        "type": "input",
        "description": "Comparator 1 non-inverting analog input. Input common-mode range includes ground; V(IN) from 0 V to VCC−1.5 V."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground / negative supply reference (V-). Tie to 0 V for single-supply operation, or to the negative rail for split-supply operation."
      },
      {
        "number": "5",
        "name": "2IN+",
        "type": "input",
        "description": "Comparator 2 non-inverting analog input. Input common-mode range includes ground; V(IN) from 0 V to VCC−1.5 V."
      },
      {
        "number": "6",
        "name": "2IN-",
        "type": "input",
        "description": "Comparator 2 inverting analog input. Input common-mode range includes ground; V(IN) from 0 V to VCC−1.5 V."
      },
      {
        "number": "7",
        "name": "2OUT",
        "type": "output",
        "description": "Comparator 2 open-collector output. Requires an external pull-up resistor to VCC (typical 1 kΩ to 100 kΩ). Sinks up to 16 mA typical."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply (V+). Single-supply: 2 V to 36 V. Split-supply: ±1 V to ±18 V. Bypass with a 0.1 µF ceramic capacitor to GND close to the pin."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/lm393.pdf",
        "pages": 56,
        "sha256": "24c6b3c03dd65dfd",
        "source_tier": "mfr"
      },
      "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": "lm393.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm393-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "b5cc997bd7709aa850c0856e3da333984096197cc1f4aa8015ff19bee130cc7f",
        "checked": "2026-11-03",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Type": "Dual differential comparator",
      "Output": "Open-collector (needs pull-up)",
      "Supply voltage": "2-36 V single (±1 to ±18 V split)",
      "Common-mode input range": "Includes ground (V-)",
      "Response time": "~1.3 µs typ",
      "Channels": "2 independent",
      "Package": "SOIC-8",
      "Body (L×W×H)": "4.9 × 3.9 × 1.75 mm"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "lm393",
    "dual comparator",
    "open collector comparator",
    "voltage comparator soic-8"
  ],
  "discovery_pitch": "LM393 dual differential comparator (SOIC-8) with datasheet-verified pinout, KiCad symbol/footprint/3D, and full provenance.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm393.kicad_sym",
    "lm393.kicad_mod",
    "lm393.glb",
    "lm393.lbr",
    "docs/hero.png",
    "docs/lm393-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm393-etched.step"
  ],
  "variants": [
    {
      "mpn": "LM393D (SOIC-8, tube)",
      "kind": "packaging"
    },
    {
      "mpn": "LM393DR (SOIC-8, tape & reel)",
      "kind": "packaging"
    }
  ]
}