WS2814A

{
  "schema_version": 1,
  "type": "component",
  "slug": "ws2814a",
  "title": "WS2814A",
  "brief": "Worldsemi LED Drivers, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "led-drv",
    "ws2814a"
  ],
  "component": {
    "mpn": "WS2814A",
    "manufacturer": "Worldsemi",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "LED-drv",
    "subcategory": "LED Drivers",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2111171930_Worldsemi-WS2814A_C2920044.pdf",
    "parts": {
      "symbol": "ws2814a.kicad_sym",
      "footprint": "ws2814a.kicad_mod",
      "model_3d": "ws2814a-etched.glb",
      "model_3d_plain": "ws2814a.glb",
      "model_3d_step": "ws2814a-etched.step",
      "model_3d_step_plain": "ws2814a.step",
      "lbr": "ws2814a.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "OUTR",
        "type": "output",
        "description": "Red channel constant-current LED driver output. Open-drain low-side sink, typ 16.5 mA (15.5-17.5 mA), withstands up to 20 V on the pin. PWM duty ratio set by the received 8-bit R data."
      },
      {
        "number": "2",
        "name": "OUTG",
        "type": "output",
        "description": "Green channel constant-current LED driver output. Open-drain low-side sink, typ 16.5 mA, 20 V withstand. PWM duty ratio set by the received 8-bit G data."
      },
      {
        "number": "3",
        "name": "OUTB",
        "type": "output",
        "description": "Blue channel constant-current LED driver output. Open-drain low-side sink, typ 16.5 mA, 20 V withstand. PWM duty ratio set by the received 8-bit B data."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Data and power ground (VSS = 0 V reference for all logic and output-current returns)."
      },
      {
        "number": "5",
        "name": "DOUT",
        "type": "output",
        "description": "Cascaded data output to the DIN of the next WS2814A in the chain. Push-pull output, low-level sink ≥10 mA at Vo=0.4 V; transmission delay ≤300 ns (DIN→DOUT, CL=15 pF, RL=10 kΩ). Signal is internally reshaped so cascade length is not limited by waveform degradation."
      },
      {
        "number": "6",
        "name": "DIN",
        "type": "input",
        "description": "Single-wire NZR serial data input from MCU or upstream WS2814A's DOUT. VIH ≥ 0.7·VDD, VIL ≤ 0.3·VDD, hysteresis ~0.35 V, input capacitance ≤15 pF. Withstands up to 9 V on the pin. First chip captures the initial 32-bit word into its latch and forwards the remainder to DOUT."
      },
      {
        "number": "7",
        "name": "VDD",
        "type": "power_in",
        "description": "Logic power supply, 3.7-5.3 V (recommended 4.5-5.5 V for electrical spec). Built-in voltage regulator allows operation from 12 V or 24 V rails via a series dropping resistor (2.7 kΩ typical for 12 V; 8.2 kΩ for 24 V per the application circuits)."
      },
      {
        "number": "8",
        "name": "OUTW",
        "type": "output",
        "description": "White channel constant-current LED driver output. Open-drain low-side sink, 20 V withstand. PWM duty ratio set by the received 8-bit W data (transmitted first in the 32-bit WRGB frame)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2111171930_Worldsemi-WS2814A_C2920044.pdf",
        "pages": 7,
        "sha256": "b81a80f2a0cff069",
        "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"
    },
    "models_3d": [
      {
        "file": "ws2814a.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ws2814a-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "af06224c17033280dace7811aad0723b8d00483602fac60bfb2be9e9fbed7282",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Worldsemi",
      "Package": "SOP-8",
      "Category": "LED-drv",
      "Pins": "8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ws2814a"
  ],
  "discovery_pitch": "WS2814A (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",
    "ws2814a.kicad_sym",
    "ws2814a.kicad_mod",
    "ws2814a.glb",
    "ws2814a.step",
    "ws2814a.lbr",
    "docs/hero.png",
    "docs/ws2814a-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ws2814a-etched.step"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-25T14:09:14.551Z"
}