A3909GLNTR-T

{
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  "type": "component",
  "slug": "a3909glntr-t",
  "title": "A3909GLNTR-T",
  "brief": "Allegro MicroSystems LLC Stepper Motor Driver, SSOP-10-150mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "motor driver ics",
    "a3909glntr-t",
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  "component": {
    "mpn": "A3909GLNTR-T",
    "manufacturer": "Allegro MicroSystems LLC",
    "package": "SSOP-10-150mil",
    "pin_count": 10,
    "category": "Motor Driver ICs",
    "subcategory": "Stepper Motor Driver",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588931118578352128",
    "parts": {
      "symbol": "a3909glntr-t.kicad_sym",
      "footprint": "a3909glntr-t.kicad_mod",
      "model_3d": "a3909glntr-t-hero.glb",
      "model_3d_plain": "a3909glntr-t-etched.glb",
      "model_3d_step": "a3909glntr-t-etched.step",
      "model_3d_step_plain": "a3909glntr-t.step",
      "lbr": "a3909glntr-t.lbr"
    },
    "distributor_links": {
      "lcsc": "C2653462"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T15:07:27Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "IN1",
        "type": "input",
        "description": "Logic input for the OUT1/OUT2 bridge with VIH minimum 2 V, VIL maximum 0.8 V, 300 mV typical hysteresis, and an internal 50 kΩ pull-down."
      },
      {
        "number": "2",
        "name": "IN2",
        "type": "input",
        "description": "Logic input for the OUT1/OUT2 bridge with VIH minimum 2 V, VIL maximum 0.8 V, 300 mV typical hysteresis, and an internal 50 kΩ pull-down."
      },
      {
        "number": "3",
        "name": "VBB",
        "type": "power_in",
        "description": "Motor supply input with an operating range of 4 to 18 V and an absolute maximum of 18 V, and the internal UVLO threshold is 3.6 V typical on a rising supply."
      },
      {
        "number": "4",
        "name": "IN3",
        "type": "input",
        "description": "Logic input for the OUT3/OUT4 bridge with VIH minimum 2 V, VIL maximum 0.8 V, 300 mV typical hysteresis, and an internal 50 kΩ pull-down."
      },
      {
        "number": "5",
        "name": "IN4",
        "type": "input",
        "description": "Logic input for the OUT3/OUT4 bridge with VIH minimum 2 V, VIL maximum 0.8 V, 300 mV typical hysteresis, and an internal 50 kΩ pull-down."
      },
      {
        "number": "6",
        "name": "OUT4",
        "type": "output",
        "description": "Motor output terminal of bridge 2 with output voltage limited to -0.3 V to VBB + 1 V and output current up to 1 A per phase."
      },
      {
        "number": "7",
        "name": "OUT3",
        "type": "output",
        "description": "Motor output terminal of bridge 2 with output voltage limited to -0.3 V to VBB + 1 V and output current up to 1 A per phase."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground terminal of the device, which is the reference for the logic inputs and motor outputs."
      },
      {
        "number": "9",
        "name": "OUT2",
        "type": "output",
        "description": "Motor output terminal of bridge 1 with output voltage limited to -0.3 V to VBB + 1 V and output current up to 1 A per phase."
      },
      {
        "number": "10",
        "name": "OUT1",
        "type": "output",
        "description": "Motor output terminal of bridge 1 with output voltage limited to -0.3 V to VBB + 1 V and output current up to 1 A per phase."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The 10-pin SSOP (LN) is the package matching the 'SSOP-10-150mil' hint, and the pinout is taken from; The selection guide on page 2 lists the SSOP part as 'A3909GLNx-T' (3000 pieces per 13-in. reel, 'co; The GND pin description is generic because the datasheet only lists it as 'Ground' with no specific "
        ],
        "pages_sent": 10,
        "cost_usd": 0.0406,
        "at": "2026-10-18T15:07:10"
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        "pages": 10,
        "sha256": "8e1ceccc29a7168e",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 10,
        "described": 10,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
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        "seat": "z = 0",
        "extents_mm": [
          6.1,
          4.9,
          1.1
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "67b52412e9c230c40c0bdcb2098b238633f27dfc65692a16abf3448995fbe697",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Allegro MicroSystems LLC",
      "Package": "SSOP-10-150mil",
      "Category": "Motor Driver ICs",
      "Pins": "10"
    },
    "appearance": {
      "contacts": {
        "quote": "wave solder applications. Both packages are lead (Pb) free with 100% matte-tin leadframe plating.",
        "page": 1,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
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    "characteristics": {
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          "max": 18,
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        {
          "name": "Logic Input Voltage Range",
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          "max": 6,
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        {
          "name": "Output Current",
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        {
          "name": "Output Voltage",
          "symbol": "VOUT",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
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        },
        {
          "name": "Operating Ambient Temperature",
          "symbol": "TA",
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          "unit": "°C",
          "min": -40,
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          "conditions": "G temperature range",
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        {
          "name": "Maximum Junction Temperature",
          "symbol": "TJ(max)",
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          "unit": "°C",
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          "max": 150,
          "conditions": "",
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        },
        {
          "name": "Storage Temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
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          "max": 150,
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        {
          "name": "VBB Voltage Range",
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        {
          "name": "VBB Supply Current",
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          "unit": "mA",
          "min": null,
          "typ": 4,
          "max": 8,
          "conditions": "",
          "source_page": 3,
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        },
        {
          "name": "Standby Mode (VBB supply current)",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Total Driver On-Resistance (Sink + Source)",
          "symbol": "RDS(on)tot",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 1.6,
          "max": 2,
          "conditions": "I = 1 A, TJ = 25°C, VBB = 12 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Total Driver On-Resistance (Sink + Source)",
          "symbol": "RDS(on)tot",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 2.7,
          "max": 3.5,
          "conditions": "I = 1 A, TJ = 25°C, VBB = 4 V",
          "source_page": 3,
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        },
        {
          "name": "Input Logic Low Level (standby)",
          "symbol": "VIL(Standby)",
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          "max": 0.4,
          "conditions": "All inputs low",
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        {
          "name": "Input Logic Low Level",
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        {
          "name": "Input Logic High Level",
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        },
        {
          "name": "Input Hysteresis",
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          "unit": "mV",
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          "typ": 300,
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          "conditions": "",
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        },
        {
          "name": "Logic Input Current",
          "symbol": "IIN",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 100,
          "max": 150,
          "conditions": "VIN = 5 V (Pull down = 50 kΩ)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VBB UVLO",
          "symbol": "VBBUVLO",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 3.6,
          "max": 3.95,
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        },
        {
          "name": "VBB UVLO Hysteresis",
          "symbol": "VBBHYS",
          "kind": "electrical",
          "unit": "mV",
          "min": 100,
          "typ": 300,
          "max": 500,
          "conditions": "",
          "source_page": 3,
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        },
        {
          "name": "Standby Timer",
          "symbol": "tSTB",
          "kind": "electrical",
          "unit": "ms",
          "min": null,
          "typ": 1,
          "max": 1.5,
          "conditions": "IN1 = IN2 = IN3 = IN4 < VIL(Standby)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal Shutdown Temperature",
          "symbol": "TJTSD",
          "kind": "electrical",
          "unit": "°C",
          "min": 150,
          "typ": 165,
          "max": 180,
          "conditions": "Temperature increasing",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Package Thermal Resistance",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 130,
          "max": null,
          "conditions": "LN package (estimated), on 1-layer PCB with copper limited to pin area",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
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  "author": {
    "name": "Ray",
    "email": "[email protected]"
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