CN3158

{
  "schema_version": 1,
  "type": "component",
  "slug": "cn3158",
  "title": "CN3158",
  "brief": "ShangHai Consonance Elec Battery Management, ESOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "cn3158"
  ],
  "component": {
    "mpn": "CN3158",
    "manufacturer": "ShangHai Consonance Elec",
    "package": "ESOP-8",
    "pin_count": 8,
    "category": "PMIC",
    "subcategory": "Battery Management",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/cad4808b762402ce7dd5989b1bc3bc91.pdf",
    "parts": {
      "symbol": "cn3158.kicad_sym",
      "footprint": "cn3158.kicad_mod",
      "model_3d": "cn3158-etched.glb",
      "model_3d_plain": "cn3158.glb",
      "model_3d_step": "cn3158-etched.step",
      "model_3d_step_plain": "cn3158.step",
      "lbr": "cn3158.lbr"
    },
    "distributor_links": {
      "lcsc": "C559032"
    },
    "pins": [
      {
        "number": "1",
        "name": "TEMP",
        "type": "input",
        "description": "Battery temperature sense input. Connect to the output of an NTC thermistor on the battery pack. Charging is paused when V(TEMP) < 45% or > 80% of V(VIN), indicating battery over/under-temperature; charging resumes when V(TEMP) is between 45% and 80% of V(VIN). Tie to GND to disable temperature monitoring."
      },
      {
        "number": "2",
        "name": "ISET",
        "type": "passive",
        "description": "Constant-current charge current programming and charge-current monitor. Connect a resistor R_ISET from ISET to GND to set the charge current: I_CH = (V_ISET x 986) / R_ISET. V(ISET) = 1.205V in constant-current mode and 0.12V in trickle-charge mode."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground / power return."
      },
      {
        "number": "4",
        "name": "VIN",
        "type": "power_in",
        "description": "Positive input supply, 4.4V to 6V. Powers the internal circuits and the pass transistor. When V(VIN) - V(BAT) < 10mV the chip enters low-power sleep mode and BAT current drops below 3uA."
      },
      {
        "number": "5",
        "name": "BAT",
        "type": "power_out",
        "description": "Battery connection. Connect the battery positive terminal here. Supplies charge current and constant-voltage regulation (3.63V nominal). In UVLO or sleep mode BAT sink current is < 3uA."
      },
      {
        "number": "6",
        "name": "DONE",
        "type": "output",
        "description": "Open-drain charge-end status output. Pulled low internally when charging has terminated; high-impedance otherwise. Sink capability 10mA (V_DONE=0.3V); off-state leakage <1uA at 6V."
      },
      {
        "number": "7",
        "name": "CHRG",
        "type": "output",
        "description": "Open-drain charge-in-progress status output. Pulled low internally while charging is active; high-impedance otherwise. Sink capability 10mA (V_CHRG=0.3V); off-state leakage <1uA at 6V. Typically drives a red status LED."
      },
      {
        "number": "8",
        "name": "FB",
        "type": "input",
        "description": "Battery voltage feedback / sense input. Precisely regulates the battery-side constant-voltage charge point, bypassing wire and contact resistance between the battery + terminal and BAT pin. Add a resistor Rx from FB to BAT to raise V_REG per V_REG = 3.63 + 3.707e-6 x Rx (V, ohms). Input bias current typ 3uA."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/cad4808b762402ce7dd5989b1bc3bc91.pdf",
        "pages": 13,
        "sha256": "36aa8aedab632b81",
        "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"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -2.475,
        -1.905
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm@sha256:5848244c5e72002e",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "cn3158.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.9,
          4.9,
          1.65
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "f1718a42c5ea007e8e2dd672ac39a1bb358ee4849bd53c42e21ce83e0e5df7a9",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cn3158-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          4.9,
          1.65
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "6231233504d10f632e54a36f227ce0498821f23389d30ec7c687edfe7a6b64d5",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "ShangHai Consonance Elec",
      "Package": "ESOP-8",
      "Category": "PMIC",
      "Pins": "8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "cn3158"
  ],
  "discovery_pitch": "CN3158 (ShangHai Consonance Elec) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "cn3158.kicad_sym",
    "cn3158.kicad_mod",
    "cn3158.glb",
    "cn3158.step",
    "cn3158-etched.step",
    "cn3158.lbr",
    "docs/hero.png",
    "docs/cn3158-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "variants": [
    {
      "mpn": "CN3158",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-24T19:21:02.600Z"
}