LGS4084HB5

{
  "schema_version": 1,
  "type": "component",
  "slug": "lgs4084hb5",
  "title": "LGS4084HB5",
  "brief": "Legend Si 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)",
    "lgs4084hb5",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LGS4084HB5",
    "manufacturer": "Legend Si",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "Power Management (PMIC)",
    "subcategory": "Battery Management",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756398853178572800",
    "parts": {
      "symbol": "lgs4084hb5.kicad_sym",
      "footprint": "lgs4084hb5.kicad_mod",
      "model_3d": "lgs4084hb5-hero.glb",
      "model_3d_plain": "lgs4084hb5.glb",
      "model_3d_step": "lgs4084hb5-etched.step",
      "model_3d_step_plain": "lgs4084hb5.step",
      "lbr": "lgs4084hb5.lbr"
    },
    "distributor_links": {
      "lcsc": "C5280697"
    },
    "distributor_check": {
      "checked_at": "2026-10-09T20:40:28Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CHRG",
        "type": "output",
        "description": "Open-drain charge status output that drives an LED through a series resistor (RLED, 1 kΩ in the application examples) to indicate charging."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin; the datasheet recommends connecting it to the ground plane with vias for EMI and PCB layout."
      },
      {
        "number": "3",
        "name": "BAT",
        "type": "power_out",
        "description": "Battery connection that receives the charge current and regulates the battery to the constant-voltage level (4.20 V, or 4.35 V in the 4.35 V option); absolute maximum rating is -0.3 V to 6 V."
      },
      {
        "number": "4",
        "name": "VCC",
        "type": "power_in",
        "description": "Input supply pin with an operating range of 4 V to 6 V and an overvoltage protection threshold (VOVP) of 6.25 V; absolute maximum rating is -0.3 V to 28 V."
      },
      {
        "number": "5",
        "name": "PROG",
        "type": "passive",
        "description": "Charge-current programming pin; a resistor RPROG to GND sets the charge current via IBAT = (VPROG/RPROG) × 1000 with VPROG of 1 V, and the absolute maximum rating is -0.3 V to 6 V."
      }
    ],
    "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: Pinout for SOT-23-5 taken from the page 2 pin table (columns read as SOT23-6 pin, SOT23-5 pin, name); Extracted text is garbled in places: the GND pin is printed as 'G D' and symbols (µ, Ω, °C, ICHRG/IF; Pin types are inferred from function (CHRG open-drain output, BAT power output, PROG passive program"
        ],
        "pages_sent": 12,
        "cost_usd": 0.0385,
        "at": "2026-10-09T20:38:14"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756398853178572800",
        "pages": 12,
        "sha256": "5b0673a38e5092e6",
        "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": "lgs4084hb5.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": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lgs4084hb5-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": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "907bc41db63bd43fbeb61220f341c5264220910f9a82e1f87feb174ada463a39",
        "checked": "2026-10-26",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Legend Si",
      "Package": "SOT-23-5",
      "Category": "Power Management (PMIC)",
      "Pins": "5"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "lgs4084hb5"
  ],
  "discovery_pitch": "LGS4084HB5 (Legend Si) 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",
    "lgs4084hb5.kicad_sym",
    "lgs4084hb5.kicad_mod",
    "lgs4084hb5.glb",
    "lgs4084hb5.step",
    "lgs4084hb5.lbr",
    "docs/hero.png",
    "docs/lgs4084hb5-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lgs4084hb5-hero.glb",
    "lgs4084hb5-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}