A4963GLPTR-T

{
  "slug": "a4963glptr-t",
  "version": "0.1.0",
  "type": "component",
  "description": "Allegro MicroSystems, LLC Motor Driver ICs, TSSOP-20-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power supply chip",
    "a4963glptr-t",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "a4963glptr-t.kicad_sym",
    "a4963glptr-t.kicad_mod",
    "a4963glptr-t.glb",
    "a4963glptr-t.step",
    "a4963glptr-t.lbr",
    "docs/hero.png",
    "docs/a4963glptr-t-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "a4963glptr-t-hero.glb",
    "a4963glptr-t-hero.overlay.json",
    "a4963glptr-t-etched.glb"
  ],
  "component": {
    "mpn": "A4963GLPTR-T",
    "manufacturer": "Allegro MicroSystems, LLC",
    "package": "TSSOP-20-EP",
    "pin_count": 21,
    "category": "Power Supply Chip",
    "subcategory": "Motor Driver ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/daddb46aaaf2f556f753c200e66dd904.pdf",
    "parts": {
      "symbol": "a4963glptr-t.kicad_sym",
      "footprint": "a4963glptr-t.kicad_mod",
      "model_3d": "a4963glptr-t-hero.glb",
      "model_3d_plain": "a4963glptr-t-etched.glb",
      "model_3d_step": "a4963glptr-t-etched.step",
      "model_3d_step_plain": "a4963glptr-t.step",
      "lbr": "a4963glptr-t.lbr"
    },
    "distributor_links": {
      "lcsc": "C459288",
      "digikey": "620-1686-2-ND",
      "mouser": "250-A4963GLPTR-T"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T09:15:35Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "620-1686-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "250-A4963GLPTR-T",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VBB",
        "type": "power_in",
        "description": "Main supply for internal regulators and charge pump, 4.2 to 50 V operating (absolute max 50 V), connected through reverse-voltage protection and decoupled with ceramic capacitors."
      },
      {
        "number": "2",
        "name": "FAULTn",
        "type": "output",
        "description": "Open-drain active-low fault output that can be tied to the PWM input for a single-wire ECU interface and can be shorted to ground or VBB without damage (-0.3 to 50 V)."
      },
      {
        "number": "3",
        "name": "SPD",
        "type": "output",
        "description": "Open-drain speed output with programmable FG (electrical cycle) or TACHO (commutation) frequency, can be shorted to ground or VBB without damage (-0.3 to 50 V)."
      },
      {
        "number": "4",
        "name": "PWM",
        "type": "input",
        "description": "Programmable PWM input setting the motor operating mode and proportional duty-cycle demand, pulled low for fault, -0.3 to 50 V and can be shorted to ground or VBB without damage."
      },
      {
        "number": "5",
        "name": "SDO",
        "type": "tri_state",
        "description": "Serial data output that is high impedance when STRn is high and outputs the diagnostic register fault flag (bit 15) as soon as STRn goes low (-0.3 to 6.5 V)."
      },
      {
        "number": "6",
        "name": "SCK",
        "type": "input",
        "description": "Serial clock that latches SDI on the rising edge, requires 16 rising edges per write and must be held high when STRn changes (-0.3 to 6.5 V)."
      },
      {
        "number": "7",
        "name": "STRn",
        "type": "input",
        "description": "Serial strobe (chip select) input, active low; when high, SCK and SDI activity is ignored and SDO is high impedance (-0.3 to 6.5 V)."
      },
      {
        "number": "8",
        "name": "SDI",
        "type": "input",
        "description": "Serial data input, 16-bit word MSB first (-0.3 to 6.5 V)."
      },
      {
        "number": "9",
        "name": "GND",
        "type": "power_in",
        "description": "Analog reference, digital and power ground, connected to supply ground."
      },
      {
        "number": "10",
        "name": "CSM",
        "type": "input",
        "description": "Negative differential current sense amplifier input, connected directly to one end of the sense resistor with a separate PCB trace (-4 to 6.5 V)."
      },
      {
        "number": "11",
        "name": "CSP",
        "type": "input",
        "description": "Positive differential current sense amplifier input, connected directly to one end of the sense resistor with a separate PCB trace (-4 to 6.5 V)."
      },
      {
        "number": "12",
        "name": "GLC",
        "type": "output",
        "description": "Phase C low-side gate drive output for the external N-channel MOSFET (-0.3 to 18 V)."
      },
      {
        "number": "13",
        "name": "GLB",
        "type": "output",
        "description": "Phase B low-side gate drive output for the external N-channel MOSFET (-0.3 to 18 V)."
      },
      {
        "number": "14",
        "name": "GLA",
        "type": "output",
        "description": "Phase A low-side gate drive output for the external N-channel MOSFET (-0.3 to 18 V)."
      },
      {
        "number": "15",
        "name": "GHC",
        "type": "output",
        "description": "Phase C high-side gate drive output for the external P-channel MOSFET (VBB - 18 to VBB + 0.3 V)."
      },
      {
        "number": "16",
        "name": "GHB",
        "type": "output",
        "description": "Phase B high-side gate drive output for the external P-channel MOSFET (VBB - 18 to VBB + 0.3 V)."
      },
      {
        "number": "17",
        "name": "GHA",
        "type": "output",
        "description": "Phase A high-side gate drive output for the external P-channel MOSFET (VBB - 18 to VBB + 0.3 V)."
      },
      {
        "number": "18",
        "name": "SC",
        "type": "input",
        "description": "Phase C motor connection that senses the voltage switched across the load (-4 to 51 V)."
      },
      {
        "number": "19",
        "name": "SB",
        "type": "input",
        "description": "Phase B motor connection that senses the voltage switched across the load (-4 to 51 V)."
      },
      {
        "number": "20",
        "name": "SA",
        "type": "input",
        "description": "Phase A motor connection that senses the voltage switched across the load (-4 to 51 V)."
      },
      {
        "number": "21",
        "name": "PAD",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "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: Terminal list table on page 4 labels pin 12 as 'GLA' with function 'Phase C LS FET gate drive'; the ; Exposed pad is listed as 'Pad' without a number; 'PAD' used as its number. Pad is stated to connect ; Pin types for open-drain outputs (FAULTn, SPD), SDO tri-state and sense inputs SA/SB/SC are inferred"
        ],
        "pages_sent": 8,
        "cost_usd": 0.1005,
        "at": "2026-10-23T09:14:56"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/daddb46aaaf2f556f753c200e66dd904.pdf",
        "pages": 42,
        "sha256": "88b25f3118cd7ef6",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 21,
        "described": 21,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "a4963glptr-t.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.41,
          6.5,
          1.2
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f03071cc378b3c5988945bf4815992b7cd2556cc8c0bc20cfe4582da50bd5b39",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "a4963glptr-t-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.41,
          6.5,
          1.2
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "8b3b13f6ea6caabaf185ff0c9925ced1a698fe891382a14d18fbb92d002ec7fc",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}