TMP112

{
  "schema_version": 1,
  "type": "component",
  "slug": "tmp112",
  "title": "TMP112",
  "brief": "TI digital temperature sensor, I2C, SOT-563. +/-0.5 C accuracy, 12-bit, 1.4-3.6 V. Datasheet-verified.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "sensor",
    "temperature",
    "digital-thermometer",
    "i2c",
    "sot-563",
    "texas-instruments"
  ],
  "component": {
    "mpn": "TMP112",
    "manufacturer": "Texas Instruments",
    "package": "SOT-563",
    "pin_count": 6,
    "category": "Sensor",
    "subcategory": "Temperature sensor",
    "datasheet": "https://www.ti.com/lit/ds/symlink/tmp112.pdf",
    "parts": {
      "symbol": "tmp112.kicad_sym",
      "footprint": "tmp112.kicad_mod",
      "model_3d": "tmp112-etched.glb",
      "model_3d_plain": "tmp112.glb",
      "model_3d_step": "tmp112-etched.step",
      "model_3d_step_plain": "tmp112.step",
      "lbr": "tmp112.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "SCL",
        "type": "input",
        "description": "I2C/SMBus serial clock input. Open-drain bus line; requires an external pullup to V+. Voltage rating -0.5 V to 4 V."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground / negative supply reference. Note: pin 1 has curved edges in TMP112Dx packages (not applicable to SOT563)."
      },
      {
        "number": "3",
        "name": "ALERT",
        "type": "output",
        "description": "Overtemperature alert, open-drain output; requires an external pullup resistor. If unused, tie to GND (preferred)."
      },
      {
        "number": "4",
        "name": "ADD0",
        "type": "input",
        "description": "I2C address-select input. Tie to V+, GND, SDA, or SCL to select one of four 7-bit slave addresses, allowing up to four TMP112 devices on one bus."
      },
      {
        "number": "5",
        "name": "V+",
        "type": "power_in",
        "description": "Positive supply input, 1.4 V to 3.6 V (3.3 V nominal). Absolute maximum 4 V. Typical quiescent current 3.2 uA."
      },
      {
        "number": "6",
        "name": "SDA",
        "type": "bidirectional",
        "description": "I2C/SMBus serial data line. Open-drain output; requires an external pullup to V+. Voltage rating -0.5 V to 4 V."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/tmp112.pdf",
        "pages": 46,
        "sha256": "5e9dc199169e25b3",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tmp112.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          1.6,
          1.6,
          0.63
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "76c34aa4905777c0a8abe4718019904a3a9f8343cab7cc056f4516b7ef5165fc",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tmp112-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          1.6,
          1.6,
          0.63
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "040582825f9549d866f7f0288bbb7867b4b54cf6f98b706aaedcbc158f872f34",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Type": "Digital temperature sensor",
      "Interface": "I2C / SMBus (4 addresses)",
      "Accuracy": "+/-0.5 C (max, -25 to 85 C)",
      "Resolution": "12-bit (0.0625 C)",
      "Range": "-40 to 125 C",
      "Alert": "Programmable high/low limit output",
      "Supply": "1.4-3.6 V",
      "Package": "SOT-563"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "tmp112",
    "i2c temperature sensor",
    "digital temp sensor",
    "0.5c temperature sensor"
  ],
  "discovery_pitch": "TI TMP112 digital temperature sensor (SOT-563, I2C) with datasheet-verified pinout, KiCad symbol/footprint/3D, and full provenance.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tmp112.kicad_sym",
    "tmp112.kicad_mod",
    "tmp112.glb",
    "tmp112.step",
    "tmp112.lbr",
    "docs/hero.png",
    "docs/tmp112-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tmp112-etched.step"
  ],
  "variants": [
    {
      "mpn": "TMP112AIDRLR (SOT-563, +/-0.5 C)",
      "kind": "packaging"
    },
    {
      "mpn": "TMP112BIDRLR (wider range)",
      "kind": "packaging"
    },
    {
      "mpn": "TMP112NAIDRLR (relaxed accuracy)",
      "kind": "packaging"
    }
  ]
}