{
  "id": "a4988",
  "name": "A4988 Microstepping Motor Driver",
  "category": "ic",
  "family": "driver",
  "manufacturer": "Allegro MicroSystems",
  "mpn_pattern": "A4988SETTR-T",
  "description": "Allegro A4988 DMOS microstepping driver with translator, up to 2A / 35V, 1/16 microstepping, QFN-28 5x5mm (ET). GND pins tie via exposed PAD ground plane.",
  "parameters": {
    "contacts": 29,
    "mounting": "SMD",
    "supply_voltage": "8-35V",
    "output_current": "2A",
    "body_mm": "5.0x5.0x0.9"
  },
  "formats": [
    "kicad_mod",
    "kicad_sym",
    "step",
    "glb"
  ],
  "files": {
    "footprint": "https://partreel.com/library/ic/driver/a4988/a4988/a4988.kicad_mod",
    "symbol": "https://partreel.com/library/ic/driver/a4988/a4988/a4988.kicad_sym",
    "model_3d": "https://assets.partreel.com/library/ic/driver/a4988/a4988/a4988.step",
    "preview": "https://assets.partreel.com/library/ic/driver/a4988/a4988/a4988.glb",
    "footprint_svg": "https://partreel.com/library/ic/driver/a4988/a4988/a4988.footprint.svg",
    "symbol_svg": "https://partreel.com/library/ic/driver/a4988/a4988/a4988.symbol.svg"
  },
  "datasheet": "https://www.allegromicro.com/-/media/files/datasheets/a4988-datasheet.pdf",
  "license": "CC-BY-4.0",
  "verified": true,
  "tier": null,
  "dimensions_source": "Allegro A4988 datasheet p.19: QFN-28 ET 5x5x0.9, pitch 0.5, EP 3.15; PCB Layout Reference View (QFN50P500X500X100-29V1M): pads 0.30x1.15, outer span 4.80. Pinout p.18 (verified: 1-7 left, 8-14 bottom, 15-21 right, 22-28 top, CCW).",
  "keywords": [
    "a4988",
    "allegro",
    "stepper",
    "driver",
    "microstepping",
    "qfn-28"
  ],
  "field_reports": {
    "worked": 0,
    "problem": 0
  },
  "provenance": {
    "dimensions_source": "Allegro A4988 datasheet p.19: QFN-28 ET 5x5x0.9, pitch 0.5, EP 3.15; PCB Layout Reference View (QFN50P500X500X100-29V1M): pads 0.30x1.15, outer span 4.80. Pinout p.18 (verified: 1-7 left, 8-14 bottom, 15-21 right, 22-28 top, CCW).",
    "datasheet": "https://www.allegromicro.com/-/media/files/datasheets/a4988-datasheet.pdf",
    "generator_source": "https://github.com/mingyo186/partreel/blob/main/generators/gen_ics.py",
    "quality_gates": {
      "gates": [
        "validate_kicad (structure/pads/layers)",
        "KLC drawing rules (silk/fab/courtyard/pin1)",
        "check_overlap (text collisions)",
        "check_render (files/SVG-vs-source/meta completeness)",
        "check_zfight (3D coplanar faces, merged pins)",
        "validate_step (FreeCAD kernel isValid)"
      ],
      "enforcement": "CI runs all gates on every push and blocks deployment on any failure",
      "ci_config": "https://github.com/mingyo186/partreel/blob/main/.github/workflows/deploy.yml"
    },
    "field_reports": {
      "worked": 0,
      "problem": 0
    }
  },
  "page": "https://partreel.com/p/a4988/",
  "api": "https://partreel.com/api/v1/parts/a4988.json"
}