FHDW01A

{
  "schema_version": 1,
  "type": "component",
  "slug": "fhdw01a",
  "title": "FHDW01A",
  "brief": "XIN FEI HONG Battery Management, SOT-23-6. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "fhdw01a"
  ],
  "component": {
    "mpn": "FHDW01A",
    "manufacturer": "XIN FEI HONG",
    "package": "SOT-23-6",
    "pin_count": 6,
    "category": "PMIC",
    "subcategory": "Battery Management",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/29576a012d11a88d45e90d7cc778a62b.pdf",
    "parts": {
      "symbol": "fhdw01a.kicad_sym",
      "footprint": "fhdw01a.kicad_mod",
      "model_3d": "fhdw01a-etched.glb",
      "model_3d_plain": "fhdw01a.glb",
      "model_3d_step": "fhdw01a-etched.step",
      "model_3d_step_plain": "fhdw01a.step",
      "lbr": "fhdw01a.lbr"
    },
    "distributor_links": {
      "lcsc": "C2929050"
    },
    "pins": [
      {
        "number": "1",
        "name": "DOUT",
        "type": "output",
        "description": "Discharge control output. Connects to the gate of the external discharge-control N-MOSFET Q2. High (=VDD) in normal state to turn Q2 on; pulled to VSS to disable discharge on overdischarge/overcurrent/short-circuit protection."
      },
      {
        "number": "2",
        "name": "VM",
        "type": "input",
        "description": "Charge/discharge current sense input. Connects through a current-limit resistor (typ. 1kΩ, R2) to the source of the external charge-control N-MOSFET Q1, sensing the voltage drop across Q1+Q2 to detect discharge overcurrent, short-circuit and charger presence (VCHG typ. -0.5V, VEDI typ. 0.150V, VSHORT typ. 1.260V vs VSS)."
      },
      {
        "number": "3",
        "name": "COUT",
        "type": "output",
        "description": "Charge control output. Connects to the gate of the external charge-control N-MOSFET Q1. High (=VDD) in normal state to turn Q1 on; pulled to VM to disable charging on overcharge protection."
      },
      {
        "number": "4",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect. Leave floating (悬空)."
      },
      {
        "number": "5",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply / battery-sense input. Connects to the battery positive terminal through R1 (typ. 100Ω) and should be decoupled with a 0.1µF ceramic capacitor to VSS. Operating range 1.5V-10V; absolute max -0.3V to +10V."
      },
      {
        "number": "6",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground / negative supply. Connects to the battery negative terminal. All threshold voltages in the datasheet are referenced to VSS."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/29576a012d11a88d45e90d7cc778a62b.pdf",
        "pages": 9,
        "sha256": "d7b1e642d37634b0",
        "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"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -1.1375,
        -0.95
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-23-6@sha256:f341c73aac9dcb55",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "fhdw01a.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": "c9fe686b4d1b56927a41fa84a9bc1efb61d8a45a123a3db43bcaa05c2891d635",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "fhdw01a-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": "c5fda425f03c4c61e17544f209631830b1e2374f862d1a5563c73cb12f35f7f4",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "XIN FEI HONG",
      "Package": "SOT-23-6",
      "Category": "PMIC",
      "Pins": "6"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "fhdw01a"
  ],
  "discovery_pitch": "FHDW01A (XIN FEI HONG) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "fhdw01a.kicad_sym",
    "fhdw01a.kicad_mod",
    "fhdw01a.glb",
    "fhdw01a.step",
    "fhdw01a-etched.step",
    "fhdw01a.lbr",
    "docs/hero.png",
    "docs/fhdw01a-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T20:37:46.370Z"
}