A89301GESSR

{
  "slug": "a89301gessr",
  "version": "0.1.0",
  "type": "component",
  "description": "Allegro MicroSystems, LLC Motor Driver ICs, QFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management ics",
    "a89301gessr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "a89301gessr.kicad_sym",
    "a89301gessr.kicad_mod",
    "a89301gessr.glb",
    "a89301gessr.step",
    "a89301gessr.lbr",
    "docs/hero.png",
    "docs/a89301gessr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "a89301gessr-hero.glb",
    "a89301gessr-hero.overlay.json",
    "a89301gessr-etched.glb"
  ],
  "component": {
    "mpn": "A89301GESSR",
    "manufacturer": "Allegro MicroSystems, LLC",
    "package": "QFN-24-EP(4x4)",
    "pin_count": 25,
    "category": "Power Management ICs",
    "subcategory": "Motor Driver ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/f6b7da6c3356ec35efecfdc089354486.pdf",
    "parts": {
      "symbol": "a89301gessr.kicad_sym",
      "footprint": "a89301gessr.kicad_mod",
      "model_3d": "a89301gessr-hero.glb",
      "model_3d_plain": "a89301gessr-etched.glb",
      "model_3d_step": "a89301gessr-etched.step",
      "model_3d_step_plain": "a89301gessr.step",
      "lbr": "a89301gessr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2066112",
      "digikey": "620-A89301GESSRTR-ND",
      "mouser": "250-A89301GESSR"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T06:20:30Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "620-A89301GESSRTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "250-A89301GESSR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "SENP",
        "type": "input",
        "description": "Current sense positive terminal for the bus shunt resistor; differential voltage to SENN should be less than 65 mV to avoid saturation (abs max ±500 mV DC)."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "3",
        "name": "GLA",
        "type": "output",
        "description": "Low-side gate drive output for phase A; source/sink current configurable in EEPROM (abs max VLSS-0.3 to 8.5 V)."
      },
      {
        "number": "4",
        "name": "GLB",
        "type": "output",
        "description": "Low-side gate drive output for phase B; source/sink current configurable in EEPROM (abs max VLSS-0.3 to 8.5 V)."
      },
      {
        "number": "5",
        "name": "GLC",
        "type": "output",
        "description": "Low-side gate drive output for phase C; source/sink current configurable in EEPROM (abs max VLSS-0.3 to 8.5 V)."
      },
      {
        "number": "6",
        "name": "LSS",
        "type": "passive",
        "description": "Low-side source connection for the low-side MOSFETs (abs max ±500 mV DC)."
      },
      {
        "number": "7",
        "name": "SA",
        "type": "bidirectional",
        "description": "Motor phase A output/high-side source sense (abs max -2 to VBB+2 V)."
      },
      {
        "number": "8",
        "name": "GHA",
        "type": "output",
        "description": "High-side gate drive output for phase A (abs max VSx-0.3 to VCP+0.3 V)."
      },
      {
        "number": "9",
        "name": "SB",
        "type": "bidirectional",
        "description": "Motor phase B output/high-side source sense (abs max -2 to VBB+2 V)."
      },
      {
        "number": "10",
        "name": "GHB",
        "type": "output",
        "description": "High-side gate drive output for phase B (abs max VSx-0.3 to VCP+0.3 V)."
      },
      {
        "number": "11",
        "name": "SC",
        "type": "bidirectional",
        "description": "Motor phase C output/high-side source sense (abs max -2 to VBB+2 V)."
      },
      {
        "number": "12",
        "name": "GHC",
        "type": "output",
        "description": "High-side gate drive output for phase C (abs max VSx-0.3 to VCP+0.3 V)."
      },
      {
        "number": "13",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect."
      },
      {
        "number": "14",
        "name": "VCP",
        "type": "passive",
        "description": "Charge pump output for high-side gate drive (abs max VBB-0.3 to VBB+8 V)."
      },
      {
        "number": "15",
        "name": "VBB",
        "type": "power_in",
        "description": "Power supply input, 5.5 to 50 V operating (48 V max while driving)."
      },
      {
        "number": "16",
        "name": "CP2",
        "type": "passive",
        "description": "Charge pump capacitor terminal 2 (abs max VBB-0.3 to VCP+0.3 V)."
      },
      {
        "number": "17",
        "name": "CP1",
        "type": "passive",
        "description": "Charge pump capacitor terminal 1 (abs max -0.3 to VBB+0.3 V)."
      },
      {
        "number": "18",
        "name": "BRAKE",
        "type": "input",
        "description": "Active-high logic input that turns on all low sides for braking and overrides speed control (logic range -0.3 to 6 V)."
      },
      {
        "number": "19",
        "name": "VREG",
        "type": "power_out",
        "description": "2.8 V regulator output powering internal logic, usable for up to 10 mA external load, requires 0.22 µF or greater ceramic capacitor."
      },
      {
        "number": "20",
        "name": "SPD",
        "type": "input",
        "description": "Speed demand input for PWM, analog or clock mode, also used as SCL in I2C mode (-0.3 to 6 V)."
      },
      {
        "number": "21",
        "name": "DIR",
        "type": "input",
        "description": "Direction control logic input: high gives A→B→C, low gives A→C→B (-0.3 to 6 V)."
      },
      {
        "number": "22",
        "name": "FAULT",
        "type": "output",
        "description": "Open-drain fault indicator output, high when no fault, recommended maximum sink current 10 mA (6 V max)."
      },
      {
        "number": "23",
        "name": "FG",
        "type": "bidirectional",
        "description": "Open-drain motor speed output pulled up to VREG or external 3.3/5 V, also used as SDA in I2C mode (6 V max)."
      },
      {
        "number": "24",
        "name": "SENN",
        "type": "input",
        "description": "Current sense negative terminal for the bus shunt resistor (abs max ±500 mV DC)."
      },
      {
        "number": "25",
        "name": "PAD",
        "type": "passive",
        "description": "Exposed pad for enhanced thermal dissipation."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The exposed pad is shown as 'PAD' with no number in the terminal list. It is numbered 25 here to mat; Pin types for LSS and SA/SB/SC are inferred from the functional descriptions, because the datasheet ; FG and SPD have dual functions (SDA and SCL in I2C mode). Their types are chosen as bidirectional an"
        ],
        "pages_sent": 20,
        "cost_usd": 0.1794,
        "at": "2026-10-23T06:19:41"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/f6b7da6c3356ec35efecfdc089354486.pdf",
        "pages": 20,
        "sha256": "3621b7ecdce53c1a",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 25,
        "described": 25,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "a89301gessr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.0,
          4.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "096fc110543e6d324c5120c2d38e3dca87a389da9b6fac234f1fe40856295ef4",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "a89301gessr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.0,
          4.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b97614da1f1426b2d986d6a0c67f83b54eb7b1b09fb8a30f2efdfcc242eb3a75",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}