TMI4054

{
  "schema_version": 1,
  "type": "component",
  "slug": "tmi4054",
  "title": "TMI4054",
  "brief": "TMI Battery Management, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management (pmic)",
    "tmi4054",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "TMI4054",
    "manufacturer": "TMI",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "Power Management (PMIC)",
    "subcategory": "Battery Management",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588906225199427584",
    "parts": {
      "symbol": "tmi4054.kicad_sym",
      "footprint": "tmi4054.kicad_mod",
      "model_3d": "tmi4054-hero.glb",
      "model_3d_plain": "tmi4054-etched.glb",
      "model_3d_step": "tmi4054-etched.step",
      "model_3d_step_plain": "tmi4054.step",
      "lbr": "tmi4054.lbr"
    },
    "distributor_links": {
      "lcsc": "C840548"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T11:06:22Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CHAG",
        "type": "output",
        "description": "Charge-status indicator pin that is pulled low while charging and goes high-impedance when charging terminates."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "IC ground pin."
      },
      {
        "number": "3",
        "name": "BAT",
        "type": "power_out",
        "description": "Connects to the positive terminal of the single-cell Li-ion battery being charged."
      },
      {
        "number": "4",
        "name": "VIN",
        "type": "power_in",
        "description": "IC power input pin; the datasheet's surge tests show the input tolerating up to 10V, but no absolute maximum rating is stated in the text."
      },
      {
        "number": "5",
        "name": "PROG",
        "type": "passive",
        "description": "Charge-current programming pin; the charge current is set by the resistor connected from this pin, with R_PROG values of 1.5kΩ to 30kΩ tabulated."
      }
    ],
    "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 SOT-23-5 pinout is given only as a Chinese-language table on page 3 (no pin diagram). Pin names ; Pin types are inferred for KiCad ERC: BAT typed power_out (charger output to battery), PROG typed pa; The datasheet gives no absolute maximum or pin voltage limits for VIN, BAT, or CHAG. The 10V figure "
        ],
        "pages_sent": 15,
        "cost_usd": 0.0305,
        "at": "2026-10-18T11:04:07"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588906225199427584",
        "pages": 15,
        "sha256": "bf597d1791a044e9",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tmi4054.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "720a6eab0024069bbee68e7cb4c3ff1149468a34611225cdc852662c5d0ec2b7",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tmi4054-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "24c14589d081b9c81de56858d259a5fcd0f08404df14cfe6add515f94ea480cc",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "TMI",
      "Package": "SOT-23-5",
      "Category": "Power Management (PMIC)",
      "Pins": "5"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "bf597d1791a044e9e941b2857ff98ecea115ab21ce6aaf773c4e04a77f009464",
      "rows": [
        {
          "name": "Programmable charge current (maximum)",
          "symbol": "",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 800,
          "conditions": "Feature bullet: up to 800mA programmable charge current (set by PROG resistor)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Battery standby current",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "Feature bullet: <1µA battery quiescent current; no test conditions printed",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Preset charge voltage accuracy",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "Feature bullet: accuracy of ±1% on the 4.2V preset charge voltage",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "tmi4054"
  ],
  "discovery_pitch": "TMI4054 (TMI) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tmi4054.kicad_sym",
    "tmi4054.kicad_mod",
    "tmi4054.glb",
    "tmi4054.step",
    "tmi4054.lbr",
    "docs/hero.png",
    "docs/tmi4054-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tmi4054-hero.glb",
    "tmi4054-hero.overlay.json",
    "tmi4054-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}