CN3142

{
  "schema_version": 1,
  "type": "component",
  "slug": "cn3142",
  "title": "CN3142",
  "brief": "ShangHai Consonance Elec Battery Management, SOT-23-6. 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 management (pmic)",
    "cn3142",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "CN3142",
    "manufacturer": "ShangHai Consonance Elec",
    "package": "SOT-23-6",
    "pin_count": 6,
    "category": "Power Management (PMIC)",
    "subcategory": "Battery Management",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590904927466713088",
    "parts": {
      "symbol": "cn3142.kicad_sym",
      "footprint": "cn3142.kicad_mod",
      "model_3d": "cn3142-etched.glb",
      "model_3d_plain": "cn3142.glb",
      "model_3d_step": "cn3142-etched.step",
      "model_3d_step_plain": "cn3142.step",
      "lbr": "cn3142.lbr"
    },
    "distributor_links": {
      "lcsc": "C7495113"
    },
    "pins": [
      {
        "number": "1",
        "name": "CHRG",
        "type": "tri_state",
        "description": "Open-drain charge-status indicator output; outputs 2 Hz pulse during charging, continuous low level at end of charge, and high-impedance during sleep mode or battery over-temperature/over-cold; sink current ICHRG = 10 mA (typ) at VCHRG = 0.3 V (charge-complete state), leakage 1 µA max at VCHRG = 6 V in sleep mode."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Power-supply ground return; PCB copper area on this pin should be maximized to improve thermal dissipation from the SOT-23-6 package."
      },
      {
        "number": "3",
        "name": "BAT",
        "type": "power_out",
        "description": "Battery positive terminal; delivers trickle, constant-current (up to 400 mA), and constant-voltage (4.2 V ±1%) charge current to the battery; battery leakage current < 3 µA in sleep mode or when VIN is below the UVLO threshold (2.65 V typ)."
      },
      {
        "number": "4",
        "name": "VIN",
        "type": "power_in",
        "description": "Supply voltage input, 4.5 V to 6.0 V; powers all internal circuits; CN3142 enters low-power sleep mode when VIN − VBAT < 10 mV and exits sleep when VIN − VBAT rises above 60 mV; quiescent current 280-500 µA (BAT open)."
      },
      {
        "number": "5",
        "name": "TEMP",
        "type": "input",
        "description": "Battery temperature monitor input; pin sources 30 µA (typ) through an external 10 kΩ NTC resistor to GND; charging suspends when VTEMP < 100 mV (over-hot) or > 850 mV (over-cold); charge current reduced to 50 % ICC when 100-135 mV (warm) or 25 % ICC when 550-850 mV (cool); connect fixed 10 kΩ to GND if temperature monitoring is not used."
      },
      {
        "number": "6",
        "name": "ISET",
        "type": "passive",
        "description": "Constant-current set and charge-current monitor; connect resistor RISET from this pin to GND; ICH = 502 V / RISET (A, Ω); pin voltage regulated to 0.4 V (typ) in trickle mode and 1.205 V (typ) in CC mode, allowing current monitoring via ICH = (VISET × 417) / RISET; over-current protection shuts down the device if charge current exceeds 0.47 A (typ) for more than 2 ms (typ)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-4-6",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin 1 name 'CHG' is not explicitly listed in the pin function description table but is inferred from",
          "1/6 pin names appear NOWHERE in the datasheet text: ['1:CHG@p4']"
        ],
        "pages_sent": 11,
        "cost_usd": 0.2046,
        "at": "2026-09-22T11:54:38"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590904927466713088",
        "pages": 11,
        "sha256": "bbc80ba3304aaf98",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "cn3142.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c9fe686b4d1b56927a41fa84a9bc1efb61d8a45a123a3db43bcaa05c2891d635",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cn3142-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "4e723e1b1ffeedbfb0e500d2ef80ea7083c7c18e723a2577e081d0652064dc19",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "ShangHai Consonance Elec",
      "Package": "SOT-23-6",
      "Category": "Power Management (PMIC)",
      "Pins": "6"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "cn3142"
  ],
  "discovery_pitch": "CN3142 (ShangHai Consonance Elec) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cn3142.kicad_sym",
    "cn3142.kicad_mod",
    "cn3142.glb",
    "cn3142.step",
    "cn3142.lbr",
    "docs/hero.png",
    "docs/cn3142-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T19:20:38.630Z"
}