WS2811M

{
  "schema_version": 1,
  "type": "component",
  "slug": "ws2811m",
  "title": "WS2811M",
  "brief": "Worldsemi LED Drivers, MSOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "led-drv",
    "ws2811m"
  ],
  "component": {
    "mpn": "WS2811M",
    "manufacturer": "Worldsemi",
    "package": "MSOP-8",
    "pin_count": 8,
    "category": "LED-drv",
    "subcategory": "LED Drivers",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2208251800_Worldsemi-WS2811M_C3034986.pdf",
    "parts": {
      "symbol": "ws2811m.kicad_sym",
      "footprint": "ws2811m.kicad_mod",
      "model_3d": "ws2811m-etched.glb",
      "model_3d_plain": "ws2811m.glb",
      "model_3d_step": "ws2811m-etched.step",
      "model_3d_step_plain": "ws2811m.step",
      "lbr": "ws2811m.lbr"
    },
    "distributor_links": {
      "lcsc": "C3034986"
    },
    "pins": [
      {
        "number": "1",
        "name": "OUTR",
        "type": "output",
        "description": "RED channel constant-current PWM LED drive output. Open-drain, 256-level PWM at ~2 kHz. Low-level sink current IOL typ 16.5 mA (15.5-17.5 mA). Output withstands up to 20 V."
      },
      {
        "number": "2",
        "name": "OUTG",
        "type": "output",
        "description": "GREEN channel constant-current PWM LED drive output. Open-drain, 256-level PWM. Low-level sink current typ 16.5 mA. Output rated to 20 V."
      },
      {
        "number": "3",
        "name": "OUTB",
        "type": "output",
        "description": "BLUE channel constant-current PWM LED drive output. Open-drain, 256-level PWM. Low-level sink current typ 16.5 mA. Output rated to 20 V."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Common signal and power ground (VSS = 0 V reference)."
      },
      {
        "number": "5",
        "name": "DO",
        "type": "output",
        "description": "Cascaded serial data output. Forwards the reshaped single-wire data stream (minus the first 24 bits consumed by this IC) to the DIN of the next device. Drive capability Idout ≥ 10 mA at VO = 0.4 V."
      },
      {
        "number": "6",
        "name": "DIN",
        "type": "input",
        "description": "Single-wire serial data input. Accepts NRZ-coded 24-bit RGB data at up to 800 Kbps. VIH ≥ 0.7·VDD, VIL ≤ 0.3·VDD, hysteresis typ 0.35 V. Port withstands up to 9.5 V."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect. Leave floating."
      },
      {
        "number": "8",
        "name": "VDD",
        "type": "power_in",
        "description": "Logic supply for the IC, 3.5 V to 5.5 V absolute maximum. An internal shunt regulator allows operation from supplies up to ~24 V by inserting a series resistor from the higher rail to VDD (e.g. 3.3 kΩ from a 12 V rail); no external Zener required."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2208251800_Worldsemi-WS2811M_C3034986.pdf",
        "pages": 8,
        "sha256": "6e9028cd9758beb6",
        "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": [
        -2.1125,
        -0.975
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "MSOP-8_3x3mm_P0.65mm@sha256:c85207be7edf4b5e",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "ws2811m.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          0.95
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "847c4c5023fe1603fbd36900a5dcc4bd3901ba473f71d42c9a469f0236eaadf3",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ws2811m-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          0.95
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "601278239776335a57e518aa11a674d061bbede91c4827fe8fb77ee360afa47d",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Worldsemi",
      "Package": "MSOP-8",
      "Category": "LED-drv",
      "Pins": "8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ws2811m"
  ],
  "discovery_pitch": "WS2811M (Worldsemi) 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",
    "ws2811m.kicad_sym",
    "ws2811m.kicad_mod",
    "ws2811m.glb",
    "ws2811m.step",
    "ws2811m-etched.step",
    "ws2811m.lbr",
    "docs/hero.png",
    "docs/ws2811m-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-25T14:09:06.335Z"
}