main
Ray Set visibility: public 5d58e12 17d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "fm3450c",
  "title": "FM3450C",
  "brief": "Shenzhen Fuman Battery Management, SOP-8. 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)",
    "fm3450c",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "FM3450C",
    "manufacturer": "Shenzhen Fuman",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "Battery Management",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588946053118353408",
    "parts": {
      "symbol": "fm3450c.kicad_sym",
      "footprint": "fm3450c.kicad_mod",
      "model_3d": "fm3450c-hero.glb",
      "model_3d_plain": "fm3450c-etched.glb",
      "model_3d_step": "fm3450c-etched.step",
      "model_3d_step_plain": "fm3450c.step",
      "lbr": "fm3450c.lbr"
    },
    "distributor_links": {
      "lcsc": "C2927932"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T03:56:28Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VCC",
        "type": "power_in",
        "description": "Chip power supply pin, with an operating supply range of 3 V to 15 V and an absolute maximum rating of VSS-0.3 V to VSS+26 V."
      },
      {
        "number": "2",
        "name": "V3",
        "type": "input",
        "description": "Positive terminal of the third cell for voltage sensing, with an absolute maximum input range of V2-0.3 V to V2+5 V."
      },
      {
        "number": "3",
        "name": "V2",
        "type": "input",
        "description": "Negative terminal of the third cell and positive terminal of the second cell for voltage sensing, with an absolute maximum input range of V1-0.3 V to V1+5 V."
      },
      {
        "number": "4",
        "name": "V1",
        "type": "input",
        "description": "Negative terminal of the second cell and positive terminal of the first cell for voltage sensing, with an absolute maximum input range of VSS-0.3 V to VSS+5 V."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Negative terminal of the first cell and the chip ground reference; the chip's supply current (typically 8 µA, maximum 15 µA at +25 °C) flows out of this pin."
      },
      {
        "number": "6",
        "name": "VM",
        "type": "input",
        "description": "Current detection, load detection and charger detection pin for the overcurrent comparators, with an absolute maximum input range of VSS-0.3 V to VCC+0.3 V."
      },
      {
        "number": "7",
        "name": "DO",
        "type": "output",
        "description": "Gate drive for the discharge-control NMOSFET as a CMOS output, with an absolute maximum voltage of VSS-0.3 V to VCC+0.3 V."
      },
      {
        "number": "8",
        "name": "CO",
        "type": "output",
        "description": "Gate drive for the charge-control NMOSFET, giving a high-level or high-impedance output, with an absolute maximum voltage of VCC-26 V to VCC+0.3 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: The datasheet gives the SOP-8 pin table only and states SOP8 as the package (封装形式采用 SOP8), which mat; CO is described as a 'high-level or high-impedance output'; it is classified here as output rather t; Pins 2-4 (V3, V2, V1) are battery-cell sense inputs whose text gives absolute ratings relative to ad"
        ],
        "pages_sent": 6,
        "cost_usd": 0.0269,
        "at": "2026-10-18T03:54:48"
      },
      "datasheet": {
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        "pages": 6,
        "sha256": "b817d43c24e936e0",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
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        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
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        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  "metadata": {
    "specs": {
      "Manufacturer": "Shenzhen Fuman",
      "Package": "SOP-8",
      "Category": "Power Management (PMIC)",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "b817d43c24e936e09155ca67f00aea1e85088cb790c42968935e52cdf0d23e28",
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          "name": "Overcharge detection voltage",
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          "typ": 4.25,
          "max": 0.025,
          "conditions": "n=1, 2, 3",
          "source_page": 2,
          "source": "datasheet"
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        {
          "name": "Overcharge release voltage",
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          "kind": "tolerance",
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          "min": -0.08,
          "typ": 4.05,
          "max": 0.08,
          "conditions": "n=1, 2, 3",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Overdischarge detection voltage",
          "symbol": "VDL",
          "kind": "tolerance",
          "unit": "V",
          "min": -0.08,
          "typ": 2.7,
          "max": 0.08,
          "conditions": "n=1, 2, 3",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Overdischarge release voltage",
          "symbol": "VDU",
          "kind": "tolerance",
          "unit": "V",
          "min": -0.1,
          "typ": 3,
          "max": 0.1,
          "conditions": "n=1, 2, 3",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Overcurrent detection voltage 1",
          "symbol": "VIOV1",
          "kind": "tolerance",
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          "min": -0.01,
          "typ": 0.1,
          "max": 0.01,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Overcurrent detection voltage 2",
          "symbol": "VIOV2",
          "kind": "electrical",
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          "min": 0.15,
          "typ": 0.2,
          "max": 0.25,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Overcurrent detection voltage 3",
          "symbol": "VIOV3",
          "kind": "electrical",
          "unit": "V",
          "min": 0.35,
          "typ": 0.45,
          "max": 0.55,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Overcharge detection delay time",
          "symbol": "tCU",
          "kind": "timing",
          "unit": "s",
          "min": 0.5,
          "typ": 1.2,
          "max": 1.7,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Overcharge release detection delay time",
          "symbol": "tCUR",
          "kind": "timing",
          "unit": "s",
          "min": 0.5,
          "typ": 1.2,
          "max": 1.7,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Overdischarge detection delay time",
          "symbol": "tDL",
          "kind": "timing",
          "unit": "s",
          "min": 0.5,
          "typ": 1.2,
          "max": 1.7,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Overdischarge release detection delay time",
          "symbol": "tDLR",
          "kind": "timing",
          "unit": "s",
          "min": 0.5,
          "typ": 1.2,
          "max": 1.7,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Overcurrent detection delay time 1",
          "symbol": "tIOV1",
          "kind": "timing",
          "unit": "s",
          "min": 0.5,
          "typ": 1.2,
          "max": 1.7,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Overcurrent detection delay time 2",
          "symbol": "tIOV2",
          "kind": "timing",
          "unit": "ms",
          "min": 60,
          "typ": 144,
          "max": 200,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Overcurrent detection delay time 3",
          "symbol": "tIOV3",
          "kind": "timing",
          "unit": "μs",
          "min": 100,
          "typ": 200,
          "max": 500,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Overcurrent release detection delay time",
          "symbol": "tIOVR",
          "kind": "timing",
          "unit": "ms",
          "min": 140,
          "typ": 300,
          "max": 400,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Current consumption",
          "symbol": "IOPE",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 8,
          "max": 15,
          "conditions": "从 GND 流出的电流",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "CO drive current - MOS on",
          "symbol": "ICOH",
          "kind": "electrical",
          "unit": "mA",
          "min": 0.7,
          "typ": 1.3,
          "max": 2,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "DO drive current capability",
          "symbol": "IDOH",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.5,
          "max": 1,
          "conditions": "VDO = VVCC–3 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "DO sink current capability",
          "symbol": "IDOL",
          "kind": "electrical",
          "unit": "mA",
          "min": 1,
          "typ": 2,
          "max": 3,
          "conditions": "VDO = VSS+3 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "V1 input voltage",
          "symbol": "V1",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 5,
          "conditions": "Relative to VSS (VSS−0.3 ~ VSS+5)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "V2 input voltage",
          "symbol": "V2",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 5,
          "conditions": "Relative to V1 (V1−0.3 ~ V1+5)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "V3 input voltage",
          "symbol": "V3",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 5,
          "conditions": "Relative to V2 (V2−0.3 ~ V2+5)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Power supply terminal voltage",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 26,
          "conditions": "Relative to VSS (VSS−0.3 ~ VSS+26)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VM input terminal voltage",
          "symbol": "VVM",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 0.3,
          "conditions": "Min relative to VSS; max relative to VCC (VSS−0.3 ~ VCC+0.3)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "DO output terminal voltage",
          "symbol": "VDO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 0.3,
          "conditions": "Min relative to VSS; max relative to VCC (VSS−0.3 ~ VCC+0.3)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "CO output terminal voltage",
          "symbol": "VCO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -26,
          "typ": null,
          "max": 0.3,
          "conditions": "Relative to VCC (VCC−26 ~ VCC+0.3)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Permissible power dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating ambient temperature",
          "symbol": "Topr",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage ambient temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating voltage range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": null,
          "max": 15,
          "conditions": "宽工作电压范围",
          "source_page": 1,
          "source": "datasheet"
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      ]
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  "discovery_pitch": "FM3450C (Shenzhen Fuman) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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