AT8549

{
  "slug": "at8549",
  "version": "0.1.1",
  "type": "component",
  "description": "ZHONGKEWEI Stepper Motor Driver, SSOP-10-150mil. Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "motor driver ics",
    "at8549",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "at8549.kicad_sym",
    "at8549.kicad_mod",
    "at8549.glb",
    "at8549.step",
    "at8549.lbr",
    "docs/hero.png",
    "docs/at8549-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "at8549-etched.step",
    "at8549-hero.glb",
    "at8549-hero.overlay.json"
  ],
  "component": {
    "mpn": "AT8549",
    "manufacturer": "ZHONGKEWEI",
    "package": "SSOP-10-150mil",
    "pin_count": 10,
    "category": "Motor Driver ICs",
    "subcategory": "Stepper Motor Driver",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588945580903043072",
    "parts": {
      "symbol": "at8549.kicad_sym",
      "footprint": "at8549.kicad_mod",
      "model_3d": "at8549-hero.glb",
      "model_3d_plain": "at8549.glb",
      "model_3d_step": "at8549-etched.step",
      "model_3d_step_plain": "at8549.step",
      "lbr": "at8549.lbr"
    },
    "distributor_links": {
      "lcsc": "C2901460"
    },
    "pins": [
      {
        "number": "1",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply voltage end, operating range 2.7-15V with capacitor filtering recommended."
      },
      {
        "number": "2",
        "name": "EN",
        "type": "input",
        "description": "Enable input; high level enables normal chip operation, low level enters sleep mode."
      },
      {
        "number": "3",
        "name": "PHS1",
        "type": "input",
        "description": "Channel 1 H-bridge output control input with internal 100kΩ pull-down resistance."
      },
      {
        "number": "4",
        "name": "PHS2",
        "type": "input",
        "description": "Channel 2 H-bridge output control input with internal 100kΩ pull-down resistance."
      },
      {
        "number": "5",
        "name": "NC",
        "type": "unconnected",
        "description": "Floating pin with no connection or defined function."
      },
      {
        "number": "6",
        "name": "GND",
        "type": "power_in",
        "description": "Power supply ground."
      },
      {
        "number": "7",
        "name": "OUT4",
        "type": "tri_state",
        "description": "Channel 2 H-bridge output terminal; driven high or low or high-impedance when disabled."
      },
      {
        "number": "8",
        "name": "OUT3",
        "type": "tri_state",
        "description": "Channel 2 H-bridge output terminal; driven high or low or high-impedance when disabled."
      },
      {
        "number": "9",
        "name": "OUT2",
        "type": "tri_state",
        "description": "Channel 1 H-bridge output terminal; driven high or low or high-impedance when disabled."
      },
      {
        "number": "10",
        "name": "OUT1",
        "type": "tri_state",
        "description": "Channel 1 H-bridge output terminal; driven high or low or high-impedance when disabled."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-4-6",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 9,
        "cost_usd": 0.1133,
        "at": "2026-09-21T18:20:26"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588945580903043072",
        "pages": 9,
        "sha256": "eb1d305b05cdbdf9",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 10,
        "described": 10,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "at8549.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.1,
          4.9,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "67b52412e9c230c40c0bdcb2098b238633f27dfc65692a16abf3448995fbe697",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "at8549-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.1,
          4.9,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b5467ceb7a27e05903518abdb9dab0546740a19bb805f037d5c8535c4a8850bf",
        "checked": "2026-11-13",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "title": "AT8549",
  "brief": "ZHONGKEWEI Stepper Motor Driver, SSOP-10-150mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "metadata": {
    "specs": {
      "Manufacturer": "ZHONGKEWEI",
      "Package": "SSOP-10-150mil",
      "Category": "Motor Driver ICs",
      "Pins": "10"
    }
  },
  "discovery_triggers": [
    "at8549"
  ],
  "discovery_pitch": "AT8549 (ZHONGKEWEI) component page with datasheet-verified CAD.",
  "visibility": "public"
}