main
Ray Set visibility: public 026ed87 5d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "cn3303",
  "title": "CN3303",
  "brief": "ShangHai Consonance Elec DC-DC Controllers, 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 supply chip",
    "cn3303",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "CN3303",
    "manufacturer": "ShangHai Consonance Elec",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Power Supply Chip",
    "subcategory": "DC-DC Controllers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/d4da46f62b23b311128947d9c60a7c44.pdf",
    "parts": {
      "symbol": "cn3303.kicad_sym",
      "footprint": "cn3303.kicad_mod",
      "model_3d": "cn3303-hero.glb",
      "model_3d_plain": "cn3303-etched.glb",
      "model_3d_step": "cn3303-etched.step",
      "model_3d_step_plain": "cn3303.step",
      "lbr": "cn3303.lbr"
    },
    "distributor_links": {
      "lcsc": "C3034873"
    },
    "distributor_check": {
      "checked_at": "2026-10-21T08:06:49Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "STAT",
        "type": "output",
        "description": "CMOS charge-status output that is high while charging and low when charging is finished, and can drive an LED or interface with an MCU."
      },
      {
        "number": "2",
        "name": "CE",
        "type": "input",
        "description": "Chip-enable input: a high level gives normal operation and a low level disables the device, with input low at or below 0.7 V and input high at or above 2.2 V, and voltages between 0.7 V and 2.2 V must be avoided."
      },
      {
        "number": "3",
        "name": "BAT",
        "type": "input",
        "description": "Battery-voltage feedback input connected directly to the battery positive terminal, where the charge-termination threshold is 12.6 V typical."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Power ground that connects to the negative terminals of the input supply and the battery, and should be routed to system ground separately from the power-stage copper."
      },
      {
        "number": "5",
        "name": "LDRV",
        "type": "output",
        "description": "Gate-drive output for the external N-channel power MOSFET, with output current of 0.65 A typical and output high level of VCC-0.3 V minimum."
      },
      {
        "number": "6",
        "name": "HDRV",
        "type": "output",
        "description": "Gate-drive output for the external P-channel MOSFET, needed only when low-battery or battery-short protection is required and left floating otherwise, with output current of 0.8 A typical."
      },
      {
        "number": "7",
        "name": "VIN",
        "type": "power_in",
        "description": "Positive supply input that powers the internal circuits and is the positive sense input for inductor current; operating range is 2.7 V to 6.5 V and the absolute maximum is 7.0 V."
      },
      {
        "number": "8",
        "name": "CSN",
        "type": "input",
        "description": "Inductor-current sense negative input, with the sense resistor connected between VIN and CSN and the normal (VIN-CSN) limits of 125 mV typical upper and 85 mV typical lower."
      }
    ],
    "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-arrangement diagram (管脚排列图) on page 1 is an image and is not in the extracted text. Pin numb; The package outline drawing (封装信息, page 13) is not in the extracted text. Physical pin locations on ; Pin types are assigned by KiCad ERC class from the functional descriptions. GND is power_in per inst"
        ],
        "pages_sent": 13,
        "cost_usd": 0.055,
        "at": "2026-10-21T08:02:06"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/d4da46f62b23b311128947d9c60a7c44.pdf",
        "pages": 13,
        "sha256": "c222bff8175062f1",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "file": "cn3303.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cn3303-etched.step",
        "role": "eda",
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        "units": "mm",
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        "sha256": "22dd84dde339dd440ab5b813c1b4f764f376e9275261f97fb2113fe9a6adc3ee",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  "metadata": {
    "specs": {
      "Manufacturer": "ShangHai Consonance Elec",
      "Package": "SOP-8",
      "Category": "Power Supply Chip",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "c222bff8175062f148db1c54d53c90a75c1911386eca26b7440365499fbefa15",
      "rows": [
        {
          "name": "Input voltage range",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.7,
          "typ": null,
          "max": 6.5,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Operating ambient temperature range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VIN, CSN and CE pin voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "BAT pin voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 18,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "CSN to VIN pin voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 0.3,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "STAT, LDRV and HDRV pin voltage (upper limit printed as VIN)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum junction temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating current",
          "symbol": "IVIN",
          "kind": "electrical",
          "unit": "微安",
          "min": 200,
          "typ": 280,
          "max": 360,
          "conditions": "VBAT=12.9V, No Switching",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Shutdown current",
          "symbol": "Ioff",
          "kind": "electrical",
          "unit": "微安",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "CE pin low level",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Switching frequency",
          "symbol": "fSW",
          "kind": "electrical",
          "unit": "KHz",
          "min": 200,
          "typ": null,
          "max": 1000,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Current-sense high threshold, constant current mode",
          "symbol": "VCSHI",
          "kind": "electrical",
          "unit": "毫伏",
          "min": 113,
          "typ": 123,
          "max": 133,
          "conditions": "(VIN-VCSN) rising from 0V until VLDRV<0.5V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Current-sense high threshold, quasi-CV mode",
          "symbol": "VCSHI",
          "kind": "electrical",
          "unit": "毫伏",
          "min": 65,
          "typ": 75,
          "max": 85,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Current-sense low threshold, constant current mode",
          "symbol": "VCSLO",
          "kind": "electrical",
          "unit": "毫伏",
          "min": 77,
          "typ": 87,
          "max": 97,
          "conditions": "(VIN-VCSN) falling from 0.2V until VLDRV>(VCC-0.5V)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Current-sense low threshold, quasi-CV mode",
          "symbol": "VCSLO",
          "kind": "electrical",
          "unit": "毫伏",
          "min": 32,
          "typ": 42,
          "max": 52,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Charge termination threshold voltage",
          "symbol": "Vterm",
          "kind": "electrical",
          "unit": "伏特",
          "min": 12.478,
          "typ": 12.6,
          "max": 12.726,
          "conditions": "BAT pin voltage rising",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Recharge threshold voltage",
          "symbol": "Vrech",
          "kind": "electrical",
          "unit": "伏特",
          "min": 11.95,
          "typ": 12.14,
          "max": 12.33,
          "conditions": "BAT pin voltage falling",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "BAT pin current",
          "symbol": "IBAT",
          "kind": "electrical",
          "unit": "微安",
          "min": 10,
          "typ": 14,
          "max": 18,
          "conditions": "VBAT=12.6V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Battery overvoltage protection threshold",
          "symbol": "VOV",
          "kind": "electrical",
          "unit": "%Vterm",
          "min": 1.044,
          "typ": 1.0663,
          "max": 1.088,
          "conditions": "BAT pin voltage rising",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Battery overvoltage release threshold",
          "symbol": "VOVRLS",
          "kind": "electrical",
          "unit": "%Vterm",
          "min": 1.003,
          "typ": 1.0249,
          "max": 1.047,
          "conditions": "BAT pin voltage falling",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "LDRV output current",
          "symbol": "",
          "kind": "electrical",
          "unit": "安培",
          "min": 0.65,
          "typ": null,
          "max": null,
          "conditions": "VCSN=VIN, VDRV=0.5×VCC",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "LDRV pull-down current",
          "symbol": "",
          "kind": "electrical",
          "unit": "安培",
          "min": 0.65,
          "typ": null,
          "max": null,
          "conditions": "VCSN=VIN-0.2V, VLDRV=0.5×VCC",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "LDRV output low level voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "伏特",
          "min": null,
          "typ": null,
          "max": 0.3,
          "conditions": "ILDRV=-5mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "HDRV output current",
          "symbol": "",
          "kind": "electrical",
          "unit": "安培",
          "min": 0.8,
          "typ": null,
          "max": null,
          "conditions": "VCSN=VIN, VDRV=0.5×VCC",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "HDRV pull-down current",
          "symbol": "",
          "kind": "electrical",
          "unit": "安培",
          "min": 0.8,
          "typ": null,
          "max": null,
          "conditions": "VCSN=VIN-0.2V, VHDRV=0.5×VCC",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "HDRV output low level voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "伏特",
          "min": null,
          "typ": null,
          "max": 0.3,
          "conditions": "IHDRV=-5mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "CE input low level voltage",
          "symbol": "VCEL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.7,
          "conditions": "CE voltage falling",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "CE input high level voltage",
          "symbol": "VCEH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.2,
          "typ": null,
          "max": null,
          "conditions": "CE voltage rising",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "CE input current (low)",
          "symbol": "ICEL",
          "kind": "electrical",
          "unit": "微安",
          "min": -1,
          "typ": null,
          "max": null,
          "conditions": "CE=GND, VIN=6V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "CE input current (high)",
          "symbol": "ICEH",
          "kind": "electrical",
          "unit": "微安",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "CE=VIN=6V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "STAT pull-down current",
          "symbol": "ISINK",
          "kind": "electrical",
          "unit": "mA",
          "min": 10,
          "typ": null,
          "max": null,
          "conditions": "VSTAT=0.3V, end mode",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "STAT output (source) current",
          "symbol": "ISRC",
          "kind": "electrical",
          "unit": "mA",
          "min": 10,
          "typ": null,
          "max": null,
          "conditions": "VSTAT=4.7V, charge mode",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "CSN pin input current",
          "symbol": "ICSN",
          "kind": "electrical",
          "unit": "微安",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output high-level propagation delay",
          "symbol": "tDPDH",
          "kind": "timing",
          "unit": "纳秒",
          "min": null,
          "typ": 72,
          "max": null,
          "conditions": "(VIN-VCSN): 0.15V to 0.075V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output low-level propagation delay",
          "symbol": "tDPDL",
          "kind": "timing",
          "unit": "纳秒",
          "min": null,
          "typ": 66,
          "max": null,
          "conditions": "(VIN-VCSN): 0.06V to 0.135V",
          "source_page": 5,
          "source": "datasheet"
        }
      ]
    }
  },
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  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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