MCP73811T-420I

{
  "schema_version": 1,
  "type": "component",
  "slug": "mcp73811t-420i",
  "title": "MCP73811T-420I",
  "brief": "Microchip Tech 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",
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  "component": {
    "mpn": "MCP73811T-420I",
    "manufacturer": "Microchip Tech",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "Power Management (PMIC)",
    "subcategory": "Battery Management",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586200198964396032",
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      "lcsc": "C145381"
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      "checked_at": "2026-10-20T09:37:59Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
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      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CE",
        "type": "input",
        "description": "Active-high charge enable: a logic High enables battery charging and a logic Low disables it; the input is compatible with 1.8V logic."
      },
      {
        "number": "2",
        "name": "VSS",
        "type": "power_in",
        "description": "Battery management 0V reference, connected to the negative terminal of the battery and the input supply."
      },
      {
        "number": "3",
        "name": "VBAT",
        "type": "power_out",
        "description": "Battery charge control output, the drain of the internal P-channel pass MOSFET; connect to the battery positive terminal and bypass to VSS with at least 1 µF for loop stability when the battery is disconnected."
      },
      {
        "number": "4",
        "name": "VDD",
        "type": "power_in",
        "description": "Battery management input supply, recommended at [VREG(typ.) + 0.3V] to 6V and bypassed to VSS with at least 1 µF."
      },
      {
        "number": "5",
        "name": "PROG",
        "type": "input",
        "description": "Current regulation set and charge control enable: for the MCP73811 a logic Low selects 85 mA and a logic High selects 450 mA, while for the MCP73812 a programming resistor from PROG to VSS sets the charge current (2 kΩ to 20 kΩ)."
      }
    ],
    "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 requested MPN MCP73811T-420I is given without the '/OT' package suffix; the datasheet's ordering; The datasheet covers both MCP73811 and MCP73812, which share the same SOT-23-5 pin assignment; PROG'; KiCad type for VBAT (power_out) is an interpretation of its role as the charger's pass-transistor ou"
        ],
        "pages_sent": 22,
        "cost_usd": 0.0855,
        "at": "2026-10-20T09:37:43"
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      "datasheet": {
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        "pages": 22,
        "sha256": "1acfbc5a2b1e928e",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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        "seat": "z = 0",
        "extents_mm": [
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          2.9,
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "720a6eab0024069bbee68e7cb4c3ff1149468a34611225cdc852662c5d0ec2b7",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "SOT-23-5",
      "Category": "Power Management (PMIC)",
      "Pins": "5"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "1acfbc5a2b1e928e43db55e6a80ac0d0607b7f712c6c3a2ac64977274406a9c6",
      "rows": [
        {
          "name": "Supply Voltage",
          "symbol": "VDD",
          "kind": "electrical",
          "unit": "V",
          "min": 3.75,
          "typ": null,
          "max": 6,
          "conditions": "",
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        },
        {
          "name": "Supply Current, charging",
          "symbol": "ISS",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 1000,
          "max": 1500,
          "conditions": "Charging",
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        },
        {
          "name": "Supply Current, standby",
          "symbol": "ISS",
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          "unit": "µA",
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          "max": 100,
          "conditions": "Standby (CE = VSS)",
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        },
        {
          "name": "Supply Current, shutdown",
          "symbol": "ISS",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 1.2,
          "max": 5,
          "conditions": "Shutdown (VDD < VBAT - 100 mV)",
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        },
        {
          "name": "Output Voltage Tolerance",
          "symbol": "VRTOL",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "TA=-5°C to +55°C",
          "source_page": 3,
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        },
        {
          "name": "Line Regulation",
          "symbol": "|(ΔVBAT/VBAT)/ΔVDD|",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": 0.09,
          "max": 0.3,
          "conditions": "VDD=[VREG(Typ)+1V] to 6V, IOUT=10 mA",
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        },
        {
          "name": "Load Regulation",
          "symbol": "|ΔVBAT/VBAT|",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.09,
          "max": 0.3,
          "conditions": "IOUT=10 mA to 50 mA, VDD=[VREG(Typ)+1V]",
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        },
        {
          "name": "Charge Current Tolerance",
          "symbol": "IRTOL",
          "kind": "tolerance",
          "unit": "%",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "TA=-5°C to +55°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output Reverse Leakage Current (battery discharge)",
          "symbol": "IDISCHARGE",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.5,
          "max": 2,
          "conditions": "Shutdown (VDD < VBAT - 100 mV)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input High Voltage Level (CE, PROG - MCP73811)",
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          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
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        },
        {
          "name": "Input Low Voltage Level (CE, PROG - MCP73811)",
          "symbol": "VIL",
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          "typ": null,
          "max": 0.8,
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        {
          "name": "Input Leakage Current (CE, PROG - MCP73811)",
          "symbol": "ILK",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.01,
          "max": 1,
          "conditions": "VCE = VDD, VPROG = VDD",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Specified Temperature Range",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
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        },
        {
          "name": "Operating Temperature Range",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
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          "max": 125,
          "conditions": "",
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        {
          "name": "Storage Temperature Range",
          "symbol": "TA",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
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          "max": 150,
          "conditions": "",
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        },
        {
          "name": "Supply Voltage (absolute maximum)",
          "symbol": "VDDN",
          "kind": "absolute_maximum",
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          "name": "All Inputs and Outputs w.r.t. VSS (absolute maximum, lower bound)",
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        {
          "name": "ESD protection, Human Body Model",
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        {
          "name": "Thermal Resistance, 5-Lead SOT-23",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
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          "max": null,
          "conditions": "4-Layer JC51-7 Standard Board, Natural Convection",
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  "discovery_pitch": "MCP73811T-420I (Microchip Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
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