A89301GESSR

{
  "schema_version": 1,
  "type": "component",
  "slug": "a89301gessr",
  "title": "A89301GESSR",
  "brief": "Allegro MicroSystems, LLC Motor Driver ICs, QFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management ics",
    "a89301gessr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "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,
          4,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 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,
          4,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "b97614da1f1426b2d986d6a0c67f83b54eb7b1b09fb8a30f2efdfcc242eb3a75",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Allegro MicroSystems, LLC",
      "Package": "QFN-24-EP(4x4)",
      "Category": "Power Management ICs",
      "Pins": "25"
    },
    "appearance": {
      "contacts": {
        "quote": "with exposed thermal pad (suffix ES). The package is lead (Pb) free, with 100% matte-tin leadframe plating.",
        "page": 1,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "3621b7ecdce53c1abd1d953d61c99ad09cebc6cbb470a75bab4dbfa9569ebbbb"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "3621b7ecdce53c1abd1d953d61c99ad09cebc6cbb470a75bab4dbfa9569ebbbb",
      "rows": [
        {
          "name": "Supply Voltage (Driving)",
          "symbol": "VBB",
          "kind": "electrical",
          "unit": "V",
          "min": 5.5,
          "typ": null,
          "max": 48,
          "conditions": "Driving",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply Voltage (Operating)",
          "symbol": "VBB",
          "kind": "electrical",
          "unit": "V",
          "min": 5.5,
          "typ": null,
          "max": 50,
          "conditions": "Operating",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VBB Supply Current",
          "symbol": "IBB",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 8,
          "max": 12,
          "conditions": "IVREG = 0 mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VBB Supply Current Standby",
          "symbol": "IBB",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 10,
          "max": 20,
          "conditions": "Standby mode",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Reference Voltage",
          "symbol": "VREG",
          "kind": "electrical",
          "unit": "V",
          "min": 2.7,
          "typ": 2.86,
          "max": 2.95,
          "conditions": "IOUT = 10 mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "High Side Gate Drive Output",
          "symbol": "VGH",
          "kind": "electrical",
          "unit": "V",
          "min": 6.5,
          "typ": 6.8,
          "max": null,
          "conditions": "VBB = 8 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Low Side Gate Drive Output",
          "symbol": "VGL",
          "kind": "electrical",
          "unit": "V",
          "min": 6.5,
          "typ": 7.3,
          "max": null,
          "conditions": "VBB = 8 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "PWM Duty On Threshold",
          "symbol": "PWMON",
          "kind": "electrical",
          "unit": "%",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "Relative to target",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "PWM Duty Off Threshold",
          "symbol": "PWMOFF",
          "kind": "electrical",
          "unit": "%",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "Relative to target",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "PWM Input Frequency Range",
          "symbol": "fPWM(MIN)",
          "kind": "electrical",
          "unit": "kHz",
          "min": 2.5,
          "typ": null,
          "max": 100,
          "conditions": "PWM input frequency setting = 0",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "PWM Input Frequency Range",
          "symbol": "fPWM(MIN)",
          "kind": "electrical",
          "unit": "Hz",
          "min": 80,
          "typ": null,
          "max": 3200,
          "conditions": "PWM input frequency setting = 1",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Clock Input Frequency Range",
          "symbol": "fCLOCK",
          "kind": "electrical",
          "unit": "Hz",
          "min": 1,
          "typ": null,
          "max": 2000,
          "conditions": "CLOCK mode",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "SPD Standby Threshold (Analog Enter)",
          "symbol": "VSPD(TH_ENT)",
          "kind": "electrical",
          "unit": "mV",
          "min": 50,
          "typ": 100,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "SPD Standby Threshold (Analog Exit)",
          "symbol": "VSPD(TH_EXIT)",
          "kind": "electrical",
          "unit": "V",
          "min": 0.4,
          "typ": 0.75,
          "max": 1,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "SPD On Threshold",
          "symbol": "VSPD(ON)",
          "kind": "electrical",
          "unit": "mV",
          "min": 210,
          "typ": 250,
          "max": 290,
          "conditions": "ON/OFF setting = 10%",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "SPD ADC Accuracy",
          "symbol": "VSPDADC(ACC)",
          "kind": "electrical",
          "unit": "mV",
          "min": -40,
          "typ": null,
          "max": 40,
          "conditions": "VSPD = 0.2 to 2.5 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Speed Closed Loop Accuracy",
          "symbol": "fSPD(ACC)",
          "kind": "electrical",
          "unit": "%",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "PWM mode or Analog mode",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Speed Closed Loop Accuracy",
          "symbol": "fSPD(ACC)",
          "kind": "electrical",
          "unit": "rpm",
          "min": -0.1,
          "typ": null,
          "max": 0.1,
          "conditions": "Clock mode",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Motor PWM Frequency",
          "symbol": "fPWM",
          "kind": "electrical",
          "unit": "kHz",
          "min": 23.3,
          "typ": 24.4,
          "max": 25.3,
          "conditions": "TA = 25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VBB UVLO",
          "symbol": "VBB(UVLO)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 4.75,
          "max": 4.95,
          "conditions": "VBB rising",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VBB UVLO Hysteresis",
          "symbol": "VBB(HYS)",
          "kind": "electrical",
          "unit": "mV",
          "min": 200,
          "typ": 300,
          "max": 450,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input Current",
          "symbol": "IIN",
          "kind": "electrical",
          "unit": "µA",
          "min": -5,
          "typ": 1,
          "max": 5,
          "conditions": "SPD, FG; VIN = 0 to 5.5 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Logic Input, Low Level",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 0.8,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Logic Input, High Level",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Logic Input Hysteresis",
          "symbol": "VHYS",
          "kind": "electrical",
          "unit": "mV",
          "min": 200,
          "typ": 300,
          "max": 600,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "FG Output Leakage",
          "symbol": "IFG",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "V = 5.5 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply Voltage",
          "symbol": "VBB",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Logic Input Voltage Range",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "SPD, BRAKE, DIR",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Logic Output",
          "symbol": "VO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "FG, FAULT (I < 5 mA)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "LSS Voltage",
          "symbol": "VLSS",
          "kind": "absolute_maximum",
          "unit": "mV",
          "min": -500,
          "typ": null,
          "max": 500,
          "conditions": "DC",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "LSS Voltage",
          "symbol": "VLSS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -4,
          "typ": null,
          "max": 4,
          "conditions": "tW < 500 ns",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "VREG Voltage",
          "symbol": "VREG",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 4,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "SENN, SENP Voltage",
          "symbol": "VSENN, VSENP",
          "kind": "absolute_maximum",
          "unit": "mV",
          "min": -500,
          "typ": null,
          "max": 500,
          "conditions": "DC",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "SENN, SENP Voltage",
          "symbol": "VSENN, VSENP",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -4,
          "typ": null,
          "max": 4,
          "conditions": "tW < 500 ns",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage SA, SB, SC",
          "symbol": "VOUT",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -2,
          "typ": null,
          "max": null,
          "conditions": "SA, SB, SC; upper limit printed as VBB+2",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage SA, SB, SC",
          "symbol": "VOUT",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -4,
          "typ": null,
          "max": null,
          "conditions": "tw < 50 ns; upper limit printed as VBB+4",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature Range",
          "symbol": "TA",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 105,
          "conditions": "Range G",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Package Thermal Resistance",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 45,
          "max": null,
          "conditions": "24-contact QFN (package ES), on 2-sided PCB 1-in.2 copper",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal Shutdown Temperature",
          "symbol": "TJTSD",
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