A4980KLPTR-T

{
  "slug": "a4980klptr-t",
  "version": "0.1.0",
  "type": "component",
  "description": "Allegro MicroSystems, LLC Motor Driver ICs, TSSOP-28-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management ics",
    "a4980klptr-t",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "a4980klptr-t.kicad_sym",
    "a4980klptr-t.kicad_mod",
    "a4980klptr-t.glb",
    "a4980klptr-t.step",
    "a4980klptr-t.lbr",
    "docs/hero.png",
    "docs/a4980klptr-t-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "a4980klptr-t-hero.glb",
    "a4980klptr-t-hero.overlay.json",
    "a4980klptr-t-etched.glb"
  ],
  "component": {
    "mpn": "A4980KLPTR-T",
    "manufacturer": "Allegro MicroSystems, LLC",
    "package": "TSSOP-28-EP",
    "pin_count": 29,
    "category": "Power Management ICs",
    "subcategory": "Motor Driver ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/57483fb23494d572959d5489e1aac683.pdf",
    "parts": {
      "symbol": "a4980klptr-t.kicad_sym",
      "footprint": "a4980klptr-t.kicad_mod",
      "model_3d": "a4980klptr-t-hero.glb",
      "model_3d_plain": "a4980klptr-t-etched.glb",
      "model_3d_step": "a4980klptr-t-etched.step",
      "model_3d_step_plain": "a4980klptr-t.step",
      "lbr": "a4980klptr-t.lbr"
    },
    "distributor_links": {
      "lcsc": "C459290",
      "digikey": "620-1461-2-ND",
      "mouser": "250-A4980KLPTR-T"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T01:26:05Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "620-1461-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "250-A4980KLPTR-T",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "SENSA",
        "type": "passive",
        "description": "Current sense node for bridge A; connect a sense resistor between SENSA and PGND, with sense voltage limited to -0.3 to 1 V."
      },
      {
        "number": "2",
        "name": "STRn",
        "type": "input",
        "description": "Serial data strobe and serial access enable; when high, SCK and SDI activity is ignored and SDO is high impedance (-0.3 to 6 V)."
      },
      {
        "number": "3",
        "name": "DIR",
        "type": "input",
        "description": "Direction logic input; direction changes on the next STEP rising edge, and it has no effect when using the serial interface (-0.3 to 6 V)."
      },
      {
        "number": "4",
        "name": "OAP",
        "type": "output",
        "description": "Bridge A positive output for motor phase A, rated -0.3 to VBB, with positive current flowing from OAM to OAP."
      },
      {
        "number": "5",
        "name": "OSC",
        "type": "input",
        "description": "Oscillator input; tie to AGND for the internal 4 MHz oscillator, connect a resistor to VDD to set the frequency, or drive an external 3 to 5 MHz clock."
      },
      {
        "number": "6",
        "name": "SDI",
        "type": "input",
        "description": "Serial data input, 16-bit word MSB first, latched on the SCK rising edge (-0.3 to 6 V)."
      },
      {
        "number": "7",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog reference ground, a quiet return for measurement and input references that must be connected to PGND externally."
      },
      {
        "number": "8",
        "name": "REF",
        "type": "input",
        "description": "Reference input voltage setting the absolute maximum current for both phases (0.8 to 2 V); defaults to the internal reference when tied to VDD."
      },
      {
        "number": "9",
        "name": "SCK",
        "type": "input",
        "description": "Serial interface clock; data is latched on the rising edge, with 16 rising edges required per write and SCK held high when STRn changes."
      },
      {
        "number": "10",
        "name": "VDD",
        "type": "power_in",
        "description": "Logic supply of 3 to 5.5 V, compatible with 3.3 V and 5 V logic, to be decoupled with a 100 nF ceramic capacitor."
      },
      {
        "number": "11",
        "name": "OBP",
        "type": "output",
        "description": "Bridge B positive output for motor phase B, rated -0.3 to VBB, with positive current flowing from OBM to OBP."
      },
      {
        "number": "12",
        "name": "MS1",
        "type": "input",
        "description": "Microstep resolution select input, ORed with the MS1 bit in Configuration Register 0 (-0.3 to 6 V)."
      },
      {
        "number": "13",
        "name": "MS0",
        "type": "input",
        "description": "Microstep resolution select input, ORed with the MS0 bit in Configuration Register 0 (-0.3 to 6 V)."
      },
      {
        "number": "14",
        "name": "SENSB",
        "type": "passive",
        "description": "Current sense node for bridge B; connect a sense resistor between SENSB and PGND, with sense voltage limited to -0.3 to 1 V."
      },
      {
        "number": "15",
        "name": "VBBB",
        "type": "power_in",
        "description": "Motor supply for bridge B, which also supplies the internal regulators and charge pump, rated -0.3 to 50 V and connected to VBBA."
      },
      {
        "number": "16",
        "name": "DIAG",
        "type": "output",
        "description": "Diagnostic output selected via Configuration Register 1, defaulting to a low-true fault output (-0.3 to 6 V)."
      },
      {
        "number": "17",
        "name": "SDO",
        "type": "tri_state",
        "description": "Serial data output that is high impedance when STRn is high and outputs the diagnostic register Fault flag when STRn goes low."
      },
      {
        "number": "18",
        "name": "OBM",
        "type": "output",
        "description": "Bridge B negative output for motor phase B, rated -0.3 to VBB."
      },
      {
        "number": "19",
        "name": "STEP",
        "type": "input",
        "description": "Step logic input where the motor advances on the rising edge, a filtered input with hysteresis (-0.3 to 6 V)."
      },
      {
        "number": "20",
        "name": "VREG",
        "type": "power_out",
        "description": "Regulated supply for bridge gate drive, typically 7.2 V, to be decoupled to ground with a 220 nF ceramic capacitor."
      },
      {
        "number": "21",
        "name": "PGND",
        "type": "power_in",
        "description": "Digital and power ground, to be connected to supply ground and AGND."
      },
      {
        "number": "22",
        "name": "VCP",
        "type": "passive",
        "description": "Above-supply voltage for high-side drive, with a 100 nF ceramic capacitor connected between VCP and VBB as the pump reservoir."
      },
      {
        "number": "23",
        "name": "CP1",
        "type": "passive",
        "description": "Charge pump capacitor terminal, with a 100 nF (50 V) ceramic capacitor connected between CP1 and CP2."
      },
      {
        "number": "24",
        "name": "CP2",
        "type": "passive",
        "description": "Charge pump capacitor terminal, with a 100 nF (50 V) ceramic capacitor connected between CP1 and CP2."
      },
      {
        "number": "25",
        "name": "OAM",
        "type": "output",
        "description": "Bridge A negative output for motor phase A, rated -0.3 to VBB."
      },
      {
        "number": "26",
        "name": "ENABLE",
        "type": "input",
        "description": "Bridge enable input; when low it turns off all output bridge FETs while internal logic continues to follow input commands."
      },
      {
        "number": "27",
        "name": "RESETn",
        "type": "input",
        "description": "Chip reset that resets faults when pulsed low and forces sleep when held low longer than the 10 µs reset shutdown width."
      },
      {
        "number": "28",
        "name": "VBBA",
        "type": "power_in",
        "description": "Motor supply for bridge A, which also supplies the internal regulators and charge pump, rated -0.3 to 50 V and connected to VBBB."
      },
      {
        "number": "29",
        "name": "PAD",
        "type": "power_in",
        "description": "Exposed thermal pad that must be connected to ground and soldered to the board for thermal performance."
      }
    ],
    "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 datasheet lists the exposed pad as 'PAD' with number '–'. I numbered it '29' as a convention for; Pin types for SENSA, SENSB, VCP, CP1 and CP2 are inferred as passive from their descriptions, becaus",
          "1/29 pins cited to the wrong page (name found elsewhere): ['29:PAD@p4']"
        ],
        "pages_sent": 46,
        "cost_usd": 0.5863,
        "at": "2026-10-27T01:25:34"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/57483fb23494d572959d5489e1aac683.pdf",
        "pages": 46,
        "sha256": "9c15a9f98e3c9e4f",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 29,
        "described": 29,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "a4980klptr-t.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.2,
          9.7,
          1.05
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "ff242f1d3be9d09e7f929707a2c5b1ee974a4f882053b04bcdb1cd2cb21223ef",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "a4980klptr-t-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.2,
          9.7,
          1.05
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d9ca3392ff3533a199886239360411e4bad0ec0121bdf01b82fd843851a4e049",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}