LM57FPWR

{
  "slug": "lm57fpwr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Thermostat Switches, TSSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "sensors",
    "lm57fpwr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm57fpwr.kicad_sym",
    "lm57fpwr.kicad_mod",
    "lm57fpwr.glb",
    "lm57fpwr.step",
    "lm57fpwr.lbr",
    "docs/hero.png",
    "docs/lm57fpwr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm57fpwr-hero.glb",
    "lm57fpwr-hero.overlay.json"
  ],
  "component": {
    "mpn": "LM57FPWR",
    "manufacturer": "Texas Instruments",
    "package": "TSSOP-8",
    "pin_count": 8,
    "category": "Sensors",
    "subcategory": "Thermostat Switches",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm57",
    "parts": {
      "symbol": "lm57fpwr.kicad_sym",
      "footprint": "lm57fpwr.kicad_mod",
      "model_3d": "lm57fpwr-hero.glb",
      "model_3d_plain": "lm57fpwr.glb",
      "model_3d_step": "lm57fpwr-etched.step",
      "model_3d_step_plain": "lm57fpwr.step",
      "lbr": "lm57fpwr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2864972",
      "digikey": "296-LM57FPWRTR-ND",
      "mouser": "595-LM57FPWR"
    },
    "distributor_check": {
      "checked_at": "2026-10-11T11:04:35Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-LM57FPWRTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-LM57FPWR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Power supply ground."
      },
      {
        "number": "2",
        "name": "SENSE1",
        "type": "passive",
        "description": "Trip-point resistor sense pin; one of two that selects the temperature at which TOVER and TOVER assert, with pin voltages limited to -0.3 V to VDD + 0.3 V."
      },
      {
        "number": "3",
        "name": "SENSE2",
        "type": "passive",
        "description": "Trip-point resistor sense pin; one of two that selects the temperature at which TOVER and TOVER assert, with pin voltages limited to -0.3 V to VDD + 0.3 V."
      },
      {
        "number": "4",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply voltage, specified from 2.4 V to 5.5 V, with absolute maximum of 6 V."
      },
      {
        "number": "5",
        "name": "TRIP TEST",
        "type": "input",
        "description": "Active-high test input: when low (default) VTEMP gives the temperature sensor voltage, and when high TOVER and TOVER are asserted and VTEMP outputs the trip voltage VTRIP; tie to ground if not used."
      },
      {
        "number": "6",
        "name": "TOVER",
        "type": "output",
        "description": "Active-low open-drain overtemperature switch output, asserted when the measured temperature exceeds the trip point or when TRIP TEST = 1, requires an external pullup, may be left open if not used, and is rated to 6 V absolute maximum."
      },
      {
        "number": "7",
        "name": "TOVER",
        "type": "output",
        "description": "Active-high push-pull overtemperature switch output, asserted when the measured temperature exceeds the trip point or when TRIP TEST = 1, may be left open if not used, and is rated to 6 V absolute maximum."
      },
      {
        "number": "8",
        "name": "VTEMP",
        "type": "output",
        "description": "Analog temperature sensor output voltage (VTS when TRIP TEST = 0, VTRIP when TRIP TEST = 1), with voltage limited to -0.3 V to VDD + 0.3 V and may be left open if not used."
      }
    ],
    "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 text extraction drops the overbar, so pins 6 and 7 both read as 'TOVER'. Their names are taken f; The datasheet does not assign an ERC type to the SENSE pins. 'passive' was chosen because they are r; Pin 1 is typed power_in as GND, and pin 4 is typed power_in as VDD, per the ERC convention in the in"
        ],
        "pages_sent": 10,
        "cost_usd": 0.0543,
        "at": "2026-10-11T11:04:21"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm57",
        "pages": 40,
        "sha256": "6dca4ac176274107",
        "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": "lm57fpwr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          1.1
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "cf28a51742b2e31065e201d1b313207140cbfb49062efd938788f7a310d02738",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm57fpwr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          1.1
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "9dab2070087417f7740beef32f52f8fc04b946718b877314241b6af187cfe9c8",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}