CN3306

{
  "slug": "cn3306",
  "version": "0.1.0",
  "type": "component",
  "description": "ShangHai Consonance Elec Battery Management, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "cn3306",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "cn3306.kicad_sym",
    "cn3306.kicad_mod",
    "cn3306.glb",
    "cn3306.step",
    "cn3306.lbr",
    "docs/hero.png",
    "docs/cn3306-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cn3306-hero.glb",
    "cn3306-hero.overlay.json",
    "cn3306-etched.glb"
  ],
  "component": {
    "mpn": "CN3306",
    "manufacturer": "ShangHai Consonance Elec",
    "package": "TSSOP-16",
    "pin_count": 16,
    "category": "Power Management (PMIC)",
    "subcategory": "Battery Management",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588885215603806208",
    "parts": {
      "symbol": "cn3306.kicad_sym",
      "footprint": "cn3306.kicad_mod",
      "model_3d": "cn3306-hero.glb",
      "model_3d_plain": "cn3306-etched.glb",
      "model_3d_step": "cn3306-etched.step",
      "model_3d_step_plain": "cn3306.step",
      "lbr": "cn3306.lbr"
    },
    "distributor_links": {
      "lcsc": "C529116"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T12:35:36Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "FB",
        "type": "input",
        "description": "Battery voltage feedback pin, normally connected to a resistor divider from the battery to set the constant-voltage charge level (VREG = 1.205 V at FB in constant-voltage mode)."
      },
      {
        "number": "2",
        "name": "COMP",
        "type": "passive",
        "description": "Loop frequency compensation pin, with the compensation network connected between this pin and GND."
      },
      {
        "number": "3",
        "name": "MPPT",
        "type": "input",
        "description": "Solar panel maximum power point tracking pin, normally connected to a resistor divider on the panel voltage, regulated to 1.205 V (typical) in MPPT mode; it can also limit input current from a weak source."
      },
      {
        "number": "4",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "5",
        "name": "SHDN",
        "type": "input",
        "description": "Active-high chip shutdown pin: a high level puts the IC into shutdown with all internal circuits including the 5 V regulator disabled, and a low level enables normal operation."
      },
      {
        "number": "6",
        "name": "CHRG",
        "type": "output",
        "description": "Open-drain charge status output that is pulled low during constant-current and constant-voltage charging and is high-impedance otherwise."
      },
      {
        "number": "7",
        "name": "DONE",
        "type": "output",
        "description": "Open-drain charge-complete indicator output that is pulled low in the charge-complete state and is high-impedance otherwise."
      },
      {
        "number": "8",
        "name": "CSP",
        "type": "input",
        "description": "Positive input for charge current sensing, measuring the voltage across the sense resistor RCS together with the BAT pin."
      },
      {
        "number": "9",
        "name": "BAT",
        "type": "passive",
        "description": "Battery positive connection and negative input for charge current sensing, connected to the battery positive terminal and used with CSP to sense the voltage across RCS."
      },
      {
        "number": "10",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply positive pin with an input range of 4.5 V to 32 V, requiring a filter capacitor to GND."
      },
      {
        "number": "11",
        "name": "VCC",
        "type": "power_out",
        "description": "5 V regulator output, to be tied together with pin 12 and bypassed to GND with at least 4.7 µF; it outputs 5 V when VIN is between 5.5 V and 32 V and may fall below 5 V at lower input voltage."
      },
      {
        "number": "12",
        "name": "VCC",
        "type": "power_out",
        "description": "5 V regulator output, to be tied together with pin 11 and bypassed to GND with at least 4.7 µF; it outputs 5 V when VIN is between 5.5 V and 32 V and may fall below 5 V at lower input voltage."
      },
      {
        "number": "13",
        "name": "DRV",
        "type": "output",
        "description": "Gate drive output for the external N-channel MOSFET, sourcing up to 0.8 A and sinking up to 1.5 A, with a 5 V high level."
      },
      {
        "number": "14",
        "name": "GND",
        "type": "power_in",
        "description": "Ground, the input supply negative; to be tied together with pin 15."
      },
      {
        "number": "15",
        "name": "GND",
        "type": "power_in",
        "description": "Ground, the input supply negative; to be tied together with pin 14."
      },
      {
        "number": "16",
        "name": "ISW",
        "type": "input",
        "description": "Inductor current sense pin used for current control and cycle-by-cycle overcurrent protection, with an overcurrent threshold of 200 mV typical."
      }
    ],
    "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 page 3 pin description table gives pin numbers and functions but no pin names for pins 6 and 7; ; The datasheet does not give ERC electrical types; types were inferred from the functional descriptio; Pin 4 is marked as no connection in the datasheet."
        ],
        "pages_sent": 13,
        "cost_usd": 0.0744,
        "at": "2026-10-18T12:33:16"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588885215603806208",
        "pages": 13,
        "sha256": "c26cc04abe03a526",
        "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"
    },
    "models_3d": [
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        "file": "cn3306.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "6ad5e98224d02a427d9a6b929a28dbc158b9925fba5adec12db05079f1016948",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cn3306-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
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        "sha256": "b00f0c27bc6f27e0e4dfbcc3dd9aaea7e6de98d748bcbbf1593eddb8a6199957",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}