TMP112

@@ -0,0 +1,51 @@+# TMP112++**Texas Instruments** · Temperature sensor · SOT-563++Reports board or ambient temperature over I2C to +/-0.5 C without calibration, in a tiny SOT-563. Twelve-bit resolution gives 0.0625 C steps across -40 to 125 C, an ALERT output fires on programmable high/low limits for thermostat use, and an address pin (ADD0) allows up to four devices on one bus. It runs from 1.4 to 3.6 V at a few microamps, so it fits battery designs. A small, accurate alternative to a thermistor plus ADC.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | SCL | input | I2C/SMBus serial clock input. Open-drain bus line; requires an external pullup to V+. Voltage rating -0.5 V to 4 V. |+| 2 | GND | power_in | Device ground / negative supply reference. Note: pin 1 has curved edges in TMP112Dx packages (not applicable to SOT563). |+| 3 | ALERT | output | Overtemperature alert, open-drain output; requires an external pullup resistor. If unused, tie to GND (preferred). |+| 4 | ADD0 | input | 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. |+| 5 | V+ | power_in | Positive supply input, 1.4 V to 3.6 V (3.3 V nominal). Absolute maximum 4 V. Typical quiescent current 3.2 uA. |+| 6 | SDA | bidirectional | I2C/SMBus serial data line. Open-drain output; requires an external pullup to V+. Voltage rating -0.5 V to 4 V. |++## Key specifications++| Parameter | Value |+|---|---|+| 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 |++## Ordering variants++- `TMP112AIDRLR (SOT-563, +/-0.5 C)`+- `TMP112BIDRLR (wider range)`+- `TMP112NAIDRLR (relaxed accuracy)`++## CAD (KiCad official)++- Symbol: `Sensor_Temperature:TMP112xxDRL (KiCad official)`+- Footprint: `Package_TO_SOT_SMD:SOT-563`+- 3D model: SOT-563 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/tmp112.pdf) (46 pp, sha256 `5e9dc199169e25b3`, retrieved 2026-08-17, tier: manufacturer)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/tmp112-datasheet.pdf)

@@ -0,0 +1,38 @@+{+  "slug": "tmp112",+  "version": "0.1.0",+  "type": "component",+  "description": "TI digital temperature sensor, I2C, SOT-563. +/-0.5 C accuracy, 12-bit, 1.4-3.6 V. Datasheet-verified.",+  "tags": [+    "component",+    "sensor",+    "temperature",+    "digital-thermometer",+    "i2c",+    "sot-563",+    "texas-instruments"+  ],+  "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"+  ],+  "visibility": "public",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  }+}\ No newline at end of file