CM1270-LCA-A

{
  "schema_version": 1,
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  "slug": "cm1270-lca-a",
  "title": "CM1270-LCA-A",
  "brief": "iCM(创芯微) , MSOP-10. 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": "CM1270-LCA-A",
    "manufacturer": "iCM(创芯微)",
    "package": "MSOP-10",
    "pin_count": 10,
    "category": "IC",
    "subcategory": "IC",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603349791879409664",
    "parts": {
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      "lbr": "cm1270-lca-a.lbr"
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    "distributor_links": {
      "lcsc": "C22446480"
    },
    "distributor_check": {
      "checked_at": "2026-11-11T04:42:24Z",
      "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 supply terminal; the absolute maximum supply voltage is VSS-0.3 V to VSS+40 V."
      },
      {
        "number": "2",
        "name": "VC1",
        "type": "input",
        "description": "Positive voltage terminal of cell 1 for overcharge voltage detection; the cell-to-cell input voltage (VC1-VC2) is limited to 0 to 12 V absolute maximum."
      },
      {
        "number": "3",
        "name": "VC2",
        "type": "input",
        "description": "Positive voltage terminal of cell 2 and negative connection of cell 1; the cell input voltage (VC2-VC3) is limited to 0 to 12 V absolute maximum."
      },
      {
        "number": "4",
        "name": "VC3",
        "type": "input",
        "description": "Positive voltage terminal of cell 3 and negative connection of cell 2; the cell input voltage (VC3-VC4) is limited to 0 to 12 V absolute maximum."
      },
      {
        "number": "5",
        "name": "VC4",
        "type": "input",
        "description": "Positive voltage terminal of cell 4 and negative connection of cell 3; the cell input voltage (VC4-VC5) is limited to 0 to 12 V absolute maximum."
      },
      {
        "number": "6",
        "name": "VC5",
        "type": "input",
        "description": "Positive voltage terminal of cell 5 and negative connection of cell 4; the cell input voltage (VC5-VC6) is limited to 0 to 12 V absolute maximum."
      },
      {
        "number": "7",
        "name": "VC6",
        "type": "input",
        "description": "Positive voltage terminal of cell 6 and negative connection of cell 5; the cell input voltage (VC6-VC7) is limited to 0 to 12 V absolute maximum."
      },
      {
        "number": "8",
        "name": "VC7",
        "type": "input",
        "description": "Positive voltage terminal of cell 7 and negative connection of cell 6; the cell input voltage (VC7-VSS) is limited to 0 to 12 V absolute maximum."
      },
      {
        "number": "9",
        "name": "VSS",
        "type": "power_in",
        "description": "Chip ground terminal, the reference for the supply and cell voltage limits."
      },
      {
        "number": "10",
        "name": "CO",
        "type": "output",
        "description": "Charge-control connection that drives the external MOSFET for overcharge protection; the CO terminal voltage is limited to VSS-0.3 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 does not give an ERC class for the VC sense pins. 'input' was chosen because they only; VSS is typed power_in as GND per the brief. The datasheet only calls it the chip ground terminal.; The pinout is the CM1270-A series pinout (Table 2 and Figure 3). The datasheet does not print a sepa"
        ],
        "pages_sent": 15,
        "cost_usd": 0.0668,
        "at": "2026-11-11T04:42:12"
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      "datasheet": {
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        "pages": 15,
        "sha256": "bfdb452ec1827bd0",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 10,
        "described": 10,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3,
          1.1
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "b8f88eac3ce221c2ccb0b5048f9ad49c2ef4af148f8ae50c4e232e357683f547",
        "checked": "2026-11-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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        "checked": "2026-11-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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    "package_dims": {
      "package_code": "MSOP10",
      "source_page": 12,
      "D": {
        "nom_mm": 3,
        "range_mm": [
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          3.2
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      },
      "E1": {
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      "E": {
        "nom_mm": 4.9,
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      },
      "e": {
        "nom_mm": 0.5,
        "range_mm": [
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          null
        ]
      },
      "A": {
        "nom_mm": 1.1,
        "range_mm": [
          null,
          1.1
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "cm1270-lca-a.step",
        "verdict": "PASS",
        "reasons": [
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      }
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "iCM(创芯微)",
      "Package": "MSOP-10",
      "Category": "",
      "Pins": "10"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "bfdb452ec1827bd0dbbb79b0bcb43196c86bd1be9663f1efb99a1e202c3275cf",
      "rows": [
        {
          "name": "Normal operating current",
          "symbol": "IVCC",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 3.5,
          "max": 6,
          "conditions": "V1=V2=V3=V4=V5=V6=V7=3.5V; Ta=+25°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Overcharge release voltage (printed as VOCR ±0.050 V; nominal VOCR not printed for this MPN)",
          "symbol": "VOCR",
          "kind": "tolerance",
          "unit": "V",
          "min": -0.05,
          "typ": null,
          "max": 0.05,
          "conditions": "V1=V2=...=V7=3.5V, V1=4.4→3.5V; Ta=+25°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Overcharge protection delay (printed as TOC ±50%; catalog TOC = 1 s for CM1270-LCA-A)",
          "symbol": "TOC",
          "kind": "tolerance",
          "unit": "%",
          "min": -50,
          "typ": null,
          "max": 50,
          "conditions": "V1=V2=...=V7=3.5V, V1=3.5→4.4V; Ta=+25°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Overcharge recovery delay",
          "symbol": "TOCR",
          "kind": "timing",
          "unit": "ms",
          "min": 128,
          "typ": 256,
          "max": 384,
          "conditions": "V1=V2=...=V7=3.5V, V1=4.4→3.5V; Ta=+25°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Overcharge reset delay",
          "symbol": "TRST",
          "kind": "timing",
          "unit": "ms",
          "min": 1,
          "typ": 2.5,
          "max": 4,
          "conditions": "V1=V2=...=V7=3.5V, V1=3.5→4.4→3.5V; Ta=+25°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Disconnect protection delay",
          "symbol": "TOW",
          "kind": "timing",
          "unit": "ms",
          "min": 10,
          "typ": 20,
          "max": 30,
          "conditions": "Ta=+25°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Disconnect protection release delay",
          "symbol": "TOWR",
          "kind": "timing",
          "unit": "ms",
          "min": 24,
          "typ": 48,
          "max": 72,
          "conditions": "Ta=+25°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage (absolute maximum, referenced to VSS)",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 40,
          "conditions": "Referenced to VSS: printed as VSS-0.3 ~ VSS+40 V; Ta=+25°C unless noted",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Cell input voltage (absolute maximum, each cell VC1-VC2 ... VC7-VSS)",
          "symbol": "VCELL",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 12,
          "conditions": "VC1-VC2, VC2-VC3, VC3-VC4, VC4-VC5, VC5-VC6, VC6-VC7, VC7-VSS; Ta=+25°C unless noted",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "CO output terminal voltage (absolute maximum)",
          "symbol": "VCO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 0.3,
          "conditions": "Printed as VSS-0.3 ~ VCC+0.3 V: minimum offset is from VSS, maximum offset is from VCC; Ta=+25°C unless noted",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Operating ambient temperature",
          "symbol": "TOPR",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        }
      ]
    }
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