main
Ray Set visibility: public 7a86937 6d ago
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{
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  "slug": "cm1764",
  "title": "CM1764",
  "brief": "iCM(创芯微) , 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": [
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    "ic",
    "cm1764",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "CM1764",
    "manufacturer": "iCM(创芯微)",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "IC",
    "subcategory": "IC",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603386724139474944",
    "parts": {
      "symbol": "cm1764.kicad_sym",
      "footprint": "cm1764.kicad_mod",
      "model_3d": "cm1764-hero.glb",
      "model_3d_plain": "cm1764-etched.glb",
      "model_3d_step": "cm1764-etched.step",
      "model_3d_step_plain": "cm1764.step",
      "lbr": "cm1764.lbr"
    },
    "distributor_links": {
      "lcsc": "C22446602"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T13:40:57Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD",
        "type": "power_in",
        "description": "Supply pin: the chip turns on when VDD rises to VDD_ON (15 to 17.5 V, typ. 16.5 V), shuts down when it falls to VDD_OFF (6.5 to 7.6 V, typ. 7 V), and VDD overvoltage protection acts at 40 to 47 V (typ. 43 V), with an absolute maximum of -0.3 to 45 V to GND."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for the controller and the VDD supply."
      },
      {
        "number": "3",
        "name": "FB",
        "type": "input",
        "description": "Feedback input: the absolute maximum rating is -0.3 to 7 V, the overload protection threshold VOLP is 4.5 V (protection triggers after 40 ms above it), and the burst-mode threshold is 1.15 V."
      },
      {
        "number": "4",
        "name": "CS",
        "type": "input",
        "description": "Current sense input for primary-side peak current limiting: the absolute maximum rating is -0.5 to 7 V, the per-cycle overcurrent threshold VOCPP is 0.676 to 0.764 V (typ. 0.72 V), and the leading-edge blanking time is 300 nS."
      },
      {
        "number": "5",
        "name": "Drain",
        "type": "passive",
        "description": "Drain of the internal 650 V power MOSFET, with a minimum drain-source breakdown voltage BVDSS of 650 V."
      },
      {
        "number": "6",
        "name": "Drain",
        "type": "passive",
        "description": "Drain of the internal 650 V power MOSFET, with a minimum drain-source breakdown voltage BVDSS of 650 V."
      },
      {
        "number": "7",
        "name": "Drain",
        "type": "passive",
        "description": "Drain of the internal 650 V power MOSFET, with a minimum drain-source breakdown voltage BVDSS of 650 V."
      },
      {
        "number": "8",
        "name": "Drain",
        "type": "passive",
        "description": "Drain of the internal 650 V power MOSFET, with a minimum drain-source breakdown voltage BVDSS of 650 V."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
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        "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 lists pins 5, 6, 7 and 8 together as one Drain function. Each is reported separately w; The datasheet gives only the function 'GND' for pin 2 and no electrical limits. The description is k"
        ],
        "pages_sent": 11,
        "cost_usd": 0.0352,
        "at": "2026-10-17T13:37:26"
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        "sha256": "6760bee48cce39cd",
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        "checked": "2026-10-17",
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  "metadata": {
    "specs": {
      "Manufacturer": "iCM(创芯微)",
      "Package": "SOP-8",
      "Category": "",
      "Pins": "8"
    },
    "characteristics": {
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      "source": "datasheet",
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          "max": 264,
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          "source_page": 4,
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          "min": -0.3,
          "typ": null,
          "max": 45,
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        {
          "name": "FB pin voltage",
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          "conditions": "",
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        },
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          "name": "CS pin voltage",
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          "unit": "",
          "min": -0.5,
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          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Soldering temperature",
          "symbol": "Tsolder",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "10s",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "ESD human body model",
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          "kind": "absolute_maximum",
          "unit": "KV",
          "min": null,
          "typ": null,
          "max": 3,
          "conditions": "Human body model",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Power MOSFET breakdown voltage (absolute maximum)",
          "symbol": "BVDSS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 650,
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          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VDD turn-on voltage",
          "symbol": "VDD_ON",
          "kind": "electrical",
          "unit": "V",
          "min": 15,
          "typ": 16.5,
          "max": 17.5,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VDD turn-off voltage",
          "symbol": "VDD_OFF",
          "kind": "electrical",
          "unit": "V",
          "min": 6.5,
          "typ": 7,
          "max": 7.6,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VDD overvoltage protection",
          "symbol": "VDD_OVP",
          "kind": "electrical",
          "unit": "V",
          "min": 40,
          "typ": 43,
          "max": 47,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Minimum operating frequency",
          "symbol": "FMIN",
          "kind": "electrical",
          "unit": "KHz",
          "min": 20,
          "typ": 23,
          "max": 26.6,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Frequency jitter range",
          "symbol": "ΔF",
          "kind": "tolerance",
          "unit": "%",
          "min": -7,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Overtemperature protection threshold",
          "symbol": "OTP",
          "kind": "electrical",
          "unit": "℃",
          "min": 140,
          "typ": 150,
          "max": 160,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Primary cycle-by-cycle overcurrent protection threshold",
          "symbol": "VOCPP",
          "kind": "electrical",
          "unit": "V",
          "min": 0.676,
          "typ": 0.72,
          "max": 0.764,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Startup current",
          "symbol": "IST",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 10,
          "max": null,
          "conditions": "VDD=10V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Burst mode operating current",
          "symbol": "IDD_BURST",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 500,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "FB open-loop voltage",
          "symbol": "VFB_OPEN",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 5.1,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "FB short-circuit current",
          "symbol": "IFB_SHORT",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 210,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Overload protection threshold",
          "symbol": "VOLP",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 4.5,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Green mode (frequency reduction) threshold",
          "symbol": "VREF_GREEN",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.85,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Burst mode threshold",
          "symbol": "VREF_BURST",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.15,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Soft-start time",
          "symbol": "TSS",
          "kind": "electrical",
          "unit": "mS",
          "min": null,
          "typ": 4,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Leading-edge blanking time",
          "symbol": "TLEB",
          "kind": "electrical",
          "unit": "nS",
          "min": null,
          "typ": 300,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Secondary rectifier short-circuit protection threshold",
          "symbol": "VSRSP",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.4,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output overcurrent protection threshold",
          "symbol": "VOCPS",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.3,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Maximum primary duty cycle",
          "symbol": "DUTY_MAX",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 80,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Maximum operating frequency",
          "symbol": "FMAX",
          "kind": "electrical",
          "unit": "KHz",
          "min": null,
          "typ": 65,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Overtemperature protection hysteresis",
          "symbol": "ΔT",
          "kind": "electrical",
          "unit": "℃",
          "min": null,
          "typ": 30,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Drain-source breakdown voltage",
          "symbol": "BVDSS",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 650,
          "max": null,
          "conditions": "VGS=0V,ID=250µA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Drain-source on-resistance",
          "symbol": "RDSON",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 1.5,
          "max": null,
          "conditions": "VGS=10V,ID=1A",
          "source_page": 5,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_triggers": [
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  "discovery_pitch": "CM1764 (iCM(创芯微)) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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