CM1055-DS

{
  "schema_version": 1,
  "type": "component",
  "slug": "cm1055-ds",
  "title": "CM1055-DS",
  "brief": "iCM(创芯微) , SOP-16. 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",
    "ic",
    "cm1055-ds",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "CM1055-DS",
    "manufacturer": "iCM(创芯微)",
    "package": "SOP-16",
    "pin_count": 16,
    "category": "IC",
    "subcategory": "IC",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603349407169998848",
    "parts": {
      "symbol": "cm1055-ds.kicad_sym",
      "footprint": "cm1055-ds.kicad_mod",
      "model_3d": "cm1055-ds-hero.glb",
      "model_3d_plain": "cm1055-ds-etched.glb",
      "model_3d_step": "cm1055-ds-etched.step",
      "model_3d_step_plain": "cm1055-ds.step",
      "lbr": "cm1055-ds.lbr"
    },
    "distributor_links": {
      "lcsc": "C22446455"
    },
    "distributor_check": {
      "checked_at": "2026-11-07T04:08:55Z",
      "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": "Positive supply input and positive connection of battery 1; operating voltage is 5 to 25 V and the absolute maximum rating is VSS-0.3 to VSS+40 V."
      },
      {
        "number": "2",
        "name": "VC1",
        "type": "power_in",
        "description": "Positive voltage connection of battery 1 for cell voltage sensing; the cell input absolute maximum rating is 0 to 12 V."
      },
      {
        "number": "3",
        "name": "VC2",
        "type": "power_in",
        "description": "Negative voltage connection of battery 1 and positive voltage connection of battery 2 for cell voltage sensing; the cell input absolute maximum rating is 0 to 12 V."
      },
      {
        "number": "4",
        "name": "VC3",
        "type": "power_in",
        "description": "Negative voltage of battery 2 and positive voltage connection of battery 3 for cell voltage sensing; the cell input absolute maximum rating is 0 to 12 V."
      },
      {
        "number": "5",
        "name": "VC4",
        "type": "power_in",
        "description": "Negative voltage of battery 3 and positive voltage connection of battery 4 for cell voltage sensing; the cell input absolute maximum rating is 0 to 12 V."
      },
      {
        "number": "6",
        "name": "VC5",
        "type": "power_in",
        "description": "Negative voltage of battery 4 and positive voltage connection of battery 5 for cell voltage sensing; the cell input absolute maximum rating is 0 to 12 V."
      },
      {
        "number": "7",
        "name": "VSS",
        "type": "power_in",
        "description": "Chip ground and negative voltage connection of battery 5; it is the reference for all absolute maximum voltage ratings."
      },
      {
        "number": "8",
        "name": "NC",
        "type": "unconnected",
        "description": "No-connect pin with no electrical connection function."
      },
      {
        "number": "9",
        "name": "TEC",
        "type": "passive",
        "description": "Discharge overcurrent delay adjustment terminal; the delay is set by external capacitor CTEC (TEC1 = 10 × CTEC, with TEC1 in ms and CTEC in nF), and the absolute maximum rating is VSS-0.3 to VSS+5.5 V."
      },
      {
        "number": "10",
        "name": "RTS",
        "type": "input",
        "description": "Connects the NTC thermistor (B value 3950, 100 kΩ at 25 °C) for temperature detection; the absolute maximum rating is VSS-0.3 to VSS+5.5 V."
      },
      {
        "number": "11",
        "name": "RTV",
        "type": "passive",
        "description": "Connects a resistor to the RTS pin to set the high-temperature protection threshold, with the resistor equal to 3 times the NTC resistance at the required TCH; the absolute maximum rating is VSS-0.3 to VSS+5.5 V."
      },
      {
        "number": "12",
        "name": "VINI",
        "type": "input",
        "description": "Overcurrent detection input whose voltage rises with discharge current; the absolute maximum rating is VSS-0.3 to VCC+0.3 V."
      },
      {
        "number": "13",
        "name": "DO",
        "type": "output",
        "description": "Discharge MOSFET control output, with high level VCC-0.7 V typical when VCC is below 12 V (10.8 V typical when VCC is above 12 V) and low level at VSS; the absolute maximum rating is VSS-0.3 to VCC+0.3 V."
      },
      {
        "number": "14",
        "name": "CO",
        "type": "output",
        "description": "Charge NMOS control output, with high level VCC-0.7 V typical when VCC is below 12 V (10.8 V typical when VCC is above 12 V) and low level at VSS; the absolute maximum rating is VSS-15 to VCC+0.3 V."
      },
      {
        "number": "15",
        "name": "VM",
        "type": "input",
        "description": "Charger and load detection terminal with about 70 kΩ typical resistance to VSS; the absolute maximum rating is VSS-15 to VCC+0.3 V."
      },
      {
        "number": "16",
        "name": "COP",
        "type": "output",
        "description": "Charge PMOS control output, with high level VCC-0.7 V typical when VCC is below 12 V and low level at VSS; the absolute maximum rating is VSS-15 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 pin diagram text on page 4 is scrambled by text extraction, so pin positions around the package ; The CO and COP high-level output for VCC below 12 V is printed as VCC-0.7 V in the electrical table,"
        ],
        "pages_sent": 17,
        "cost_usd": 0.09,
        "at": "2026-11-07T04:08:33"
      },
      "datasheet": {
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        "pages": 17,
        "sha256": "eb9679a6544ef0d6",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
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    "models_3d": [
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          9.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-11-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cm1055-ds-etched.step",
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    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "iCM(创芯微)",
      "Package": "SOP-16",
      "Category": "",
      "Pins": "16"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "eb9679a6544ef0d6cc9842947eed3b411b45fec5731cbf23a8793e3a6745d3d8",
      "rows": [
        {
          "name": "Operating voltage (VCC)",
          "symbol": "VCC",
          "kind": "electrical",
          "unit": "V",
          "min": 5,
          "typ": null,
          "max": 25,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Normal operating current",
          "symbol": "IVCC",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 12,
          "max": 18,
          "conditions": "V1=V2=V3=V4=V5=3.5V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Sleep current",
          "symbol": "ISTB",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 4,
          "max": 6,
          "conditions": "V1=V2=V3=V4=V5=2.0V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Overcharge protection delay",
          "symbol": "TOC",
          "kind": "timing",
          "unit": "s",
          "min": 0.5,
          "typ": 1,
          "max": 1.5,
          "conditions": "V1=V2=V3=V4=V5=3.5V, V5=3.5 → 4.4V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Overcharge recovery delay",
          "symbol": "TOCR",
          "kind": "timing",
          "unit": "ms",
          "min": 128,
          "typ": 256,
          "max": 384,
          "conditions": "V1=V2=V3=V4=V5=3.5V, V5=4.4 → 3.5V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Overdischarge release voltage",
          "symbol": "VODR",
          "kind": "tolerance",
          "unit": "V",
          "min": -0.1,
          "typ": 3,
          "max": 0.1,
          "conditions": "V1=V2=V3=V4=V5=3.5V, V5=2.0 → 3.5V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Overdischarge protection delay",
          "symbol": "TOD",
          "kind": "timing",
          "unit": "s",
          "min": 0.5,
          "typ": 1,
          "max": 1.5,
          "conditions": "V1=V2=V3=V4=V5=3.5V, V5=3.5 → 2.0V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Overdischarge recovery delay",
          "symbol": "TODR",
          "kind": "timing",
          "unit": "ms",
          "min": 24,
          "typ": 48,
          "max": 72,
          "conditions": "V1=V2=V3=V4=V5=3.5V, V5=2.0 → 3.5V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Discharge overcurrent 1 protection voltage",
          "symbol": "VEC1",
          "kind": "tolerance",
          "unit": "V",
          "min": -0.01,
          "typ": 0.1,
          "max": 0.01,
          "conditions": "V1=V2=V3=V4=V5=3.5V, VINI=0 → 0.12V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Discharge overcurrent 1 protection delay",
          "symbol": "TEC1",
          "kind": "timing",
          "unit": "s",
          "min": 0.5,
          "typ": 1,
          "max": 1.5,
          "conditions": "V1=V2=V3=V4=V5=3.5V, VINI=0 → 0.12V, CTEC=0.1μF",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Discharge overcurrent 2 protection delay",
          "symbol": "TEC2",
          "kind": "timing",
          "unit": "ms",
          "min": 50,
          "typ": 100,
          "max": 150,
          "conditions": "V1=V2=V3=V4=V5=3.5V, VINI=0 → 0.35V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Short-circuit protection delay",
          "symbol": "TSHORT",
          "kind": "timing",
          "unit": "μs",
          "min": 125,
          "typ": 250,
          "max": 375,
          "conditions": "V1=V2=V3=V4=V5=3.5V, VINI=0 → 0.8V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Discharge overcurrent release delay",
          "symbol": "TECR",
          "kind": "timing",
          "unit": "ms",
          "min": 16,
          "typ": 32,
          "max": 48,
          "conditions": "V1=V2=V3=V4=V5=3.5V, VINI=0.8 → 0V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Charge overcurrent protection voltage",
          "symbol": "VCHA",
          "kind": "tolerance",
          "unit": "V",
          "min": -0.01,
          "typ": -0.05,
          "max": 0.01,
          "conditions": "V1=V2=V3=V4=V5=3.5V, VINI=0→ -1V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Charge overcurrent protection delay",
          "symbol": "TCHA",
          "kind": "timing",
          "unit": "ms",
          "min": 128,
          "typ": 256,
          "max": 384,
          "conditions": "V1=V2=V3=V4=V5=3.5V, VINI=0→ -1V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Charge overcurrent release delay",
          "symbol": "TCHAR",
          "kind": "timing",
          "unit": "ms",
          "min": 24,
          "typ": 48,
          "max": 72,
          "conditions": "V1=V2=V3=V4=V5=3.5V, VINI=-1V→0V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Wire-break protection delay",
          "symbol": "TOW",
          "kind": "timing",
          "unit": "ms",
          "min": 260,
          "typ": 520,
          "max": 780,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Wire-break release delay",
          "symbol": "TOWR",
          "kind": "timing",
          "unit": "ms",
          "min": 24,
          "typ": 48,
          "max": 72,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Charge high-temperature protection temperature tolerance",
          "symbol": "TCH",
          "kind": "tolerance",
          "unit": "°C",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "V1=V2=V3=V4=V5=3.5V, RNTC=100k → 10k",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Charge high-temperature release temperature tolerance",
          "symbol": "TCHR",
          "kind": "tolerance",
          "unit": "°C",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "V1=V2=V3=V4=V5=3.5V, RNTC=10k → 100k",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Discharge high-temperature protection temperature tolerance",
          "symbol": "TDH",
          "kind": "tolerance",
          "unit": "°C",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "V1=V2=V3=V4=V5=3.5V, RNTC=100k → 10k",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Discharge high-temperature release temperature tolerance",
          "symbol": "TDHR",
          "kind": "tolerance",
          "unit": "°C",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "V1=V2=V3=V4=V5=3.5V, RNTC=10k → 100k",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Charge high-temperature protection delay",
          "symbol": "DTCH",
          "kind": "timing",
          "unit": "s",
          "min": 0.5,
          "typ": 1,
          "max": 1.5,
          "conditions": "V1=V2=V3=V4=V5=3.5V, RNTC=100k → 10k",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Charge high-temperature release delay",
          "symbol": "DTCHR",
          "kind": "timing",
          "unit": "ms",
          "min": 128,
          "typ": 256,
          "max": 384,
          "conditions": "V1=V2=V3=V4=V5=3.5V, RNTC=10k → 100k",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Discharge high-temperature protection delay",
          "symbol": "DTDH",
          "kind": "timing",
          "unit": "s",
          "min": 0.5,
          "typ": 1,
          "max": 1.5,
          "conditions": "V1=V2=V3=V4=V5=3.5V, RNTC=100k → 10k",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Discharge high-temperature release delay",
          "symbol": "DTDHR",
          "kind": "timing",
          "unit": "ms",
          "min": 128,
          "typ": 256,
          "max": 384,
          "conditions": "V1=V2=V3=V4=V5=3.5V, RNTC=10k → 100k",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Charge low-temperature protection temperature tolerance",
          "symbol": "TCL",
          "kind": "tolerance",
          "unit": "°C",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "V1=V2=V3=V4=V5=3.5V, RNTC=100k → 3M",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Charge low-temperature release temperature tolerance",
          "symbol": "TCLR",
          "kind": "tolerance",
          "unit": "°C",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "V1=V2=V3=V4=V5=3.5V, RNTC=3M → 100k",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Discharge low-temperature protection temperature tolerance",
          "symbol": "TDL",
          "kind": "tolerance",
          "unit": "°C",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "V1=V2=V3=V4=V5=3.5V, RNTC=100k → 3M",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Discharge low-temperature release temperature tolerance",
          "symbol": "TDLR",
          "kind": "tolerance",
          "unit": "°C",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "V1=V2=V3=V4=V5=3.5V, RNTC=3M → 100k",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Charge low-temperature protection delay",
          "symbol": "DTCL",
          "kind": "timing",
          "unit": "s",
          "min": 0.7,
          "typ": 1,
          "max": 1.3,
          "conditions": "V1=V2=V3=V4=V5=3.5V, RNTC=100k → 3M",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Charge low-temperature release delay",
          "symbol": "DTCLR",
          "kind": "timing",
          "unit": "ms",
          "min": 128,
          "typ": 256,
          "max": 384,
          "conditions": "V1=V2=V3=V4=V5=3.5V, RNTC=3M → 100k",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Discharge low-temperature protection delay",
          "symbol": "DTDL",
          "kind": "timing",
          "unit": "s",
          "min": 0.7,
          "typ": 1,
          "max": 1.3,
          "conditions": "V1=V2=V3=V4=V5=3.5V, RNTC=100k → 3M",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Discharge low-temperature release delay",
          "symbol": "DTDLR",
          "kind": "timing",
          "unit": "ms",
          "min": 128,
          "typ": 256,
          "max": 384,
          "conditions": "V1=V2=V3=V4=V5=3.5V, RNTC=3M → 100k",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Discharge state detection voltage",
          "symbol": "VSTS",
          "kind": "electrical",
          "unit": "mV",
          "min": 1,
          "typ": 4,
          "max": 7,
          "conditions": "V1=V2=V3=V4=V5=3.5V, RNTC=10k, VINI=0→10mV",
          "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 (VSS-0.3 ~ VSS+40)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input voltage between cell terminals",
          "symbol": "VCELL",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 12,
          "conditions": "VC5-VSS, VC4-VC5, VC3-VC4, VC2-VC3, VC1-VC2",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input voltage 1 (RTS, RTV, TEC)",
          "symbol": "VIN1",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 5.5,
          "conditions": "Referenced to VSS (VSS-0.3 ~ VSS+5.5) for RTS, RTV, TEC",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input voltage 2 (VM, COP, CO)",
          "symbol": "VIN2",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -15,
          "typ": null,
          "max": 0.3,
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