DW02CA.

{
  "schema_version": 1,
  "type": "component",
  "slug": "dw02ca",
  "title": "DW02CA.",
  "brief": "Shenzhen Fuman Battery Management, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "dw02ca."
  ],
  "component": {
    "mpn": "DW02CA.",
    "manufacturer": "Shenzhen Fuman",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "PMIC",
    "subcategory": "Battery Management",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2407181631_Shenzhen-Fuman-Elec-DW02CA-_C29781277.pdf",
    "parts": {
      "symbol": "dw02ca.kicad_sym",
      "footprint": "dw02ca.kicad_mod",
      "model_3d": "dw02ca-etched.glb",
      "model_3d_plain": "dw02ca.glb",
      "model_3d_step": "dw02ca-etched.step",
      "model_3d_step_plain": "dw02ca.step",
      "lbr": "dw02ca.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection. Leave floating on the PCB."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Power/reference ground. Connect to the negative terminal of the Li-ion cell. All internal detection thresholds are referenced to this pin."
      },
      {
        "number": "3",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply input, connected to the positive terminal of the Li-ion cell (typ. through a ~100 Ω series resistor R1). Operating range 1.5 V to 10 V; absolute-max -0.3 V to +10 V. Used to sense cell voltage for OV-charge (VOC=4.30 V) and OV-discharge (VOD=2.44 V) thresholds."
      },
      {
        "number": "4",
        "name": "VM",
        "type": "bidirectional",
        "description": "Charge/discharge current sense input, tied to pack negative terminal (P-). Voltage across the internal N-MOSFET (VM to GND) is compared against overcurrent-discharge (VEDI), overcurrent-charge (VECI), short-circuit (VSHORT ~18 A) and charger-detect (VCHG=-0.5 V) thresholds. Allowed input range VDD-6 V to VDD+0.3 V. Pin 4 is internally tied to pin 5."
      },
      {
        "number": "5",
        "name": "VM",
        "type": "bidirectional",
        "description": "Charge/discharge current sense input, tied to pack negative terminal (P-). Internally connected to pin 4. Same electrical function and limits as pin 4."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2407181631_Shenzhen-Fuman-Elec-DW02CA-_C29781277.pdf",
        "pages": 6,
        "sha256": "b129889242cdd15b",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "dw02ca.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,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "720a6eab0024069bbee68e7cb4c3ff1149468a34611225cdc852662c5d0ec2b7",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "dw02ca-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,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "c6a42d5573416b54b8592457b5ab0ea4c0a3ee8675c1cd062d4d78fa84a169ef",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Shenzhen Fuman",
      "Package": "SOT-23-5",
      "Category": "PMIC",
      "Pins": "5"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "dw02ca."
  ],
  "discovery_pitch": "DW02CA. (Shenzhen Fuman) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "dw02ca.kicad_sym",
    "dw02ca.kicad_mod",
    "dw02ca.glb",
    "dw02ca.step",
    "dw02ca.lbr",
    "docs/hero.png",
    "docs/dw02ca-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T20:12:59.344Z"
}