main
Ray Set visibility: public 269217e 8d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "ir21271str",
  "title": "IR21271STR",
  "brief": "UMW Gate Drivers, SOP-8. 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",
    "motor driver ics",
    "ir21271str",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "IR21271STR",
    "manufacturer": "UMW",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Motor Driver ICs",
    "subcategory": "Gate Drivers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590921133267243008",
    "parts": {
      "symbol": "ir21271str.kicad_sym",
      "footprint": "ir21271str.kicad_mod",
      "model_3d": "ir21271str-hero.glb",
      "model_3d_plain": "ir21271str-etched.glb",
      "model_3d_step": "ir21271str-etched.step",
      "model_3d_step_plain": "ir21271str.step",
      "lbr": "ir21271str.lbr"
    },
    "distributor_links": {
      "lcsc": "C20623185"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T08:58:39Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VCC",
        "type": "power_in",
        "description": "Low-side and main power supply; recommended range is 8 V to 20 V, with an absolute maximum of -0.3 V to 22 V."
      },
      {
        "number": "2",
        "name": "IN",
        "type": "input",
        "description": "Logic input for the high-side gate driver output (HO), in phase with HO; VIH minimum is 2.5 V, VIL maximum is 0.8 V, and the recommended range is 0 V to VCC."
      },
      {
        "number": "3",
        "name": "FAULT",
        "type": "output",
        "description": "Open-drain, negative-logic indicator that goes low when an over-current shutdown has occurred; output voltage is rated -0.3 V to VCC + 0.3 V."
      },
      {
        "number": "4",
        "name": "VSS",
        "type": "power_in",
        "description": "Logic ground; all voltage parameters are referenced to VSS."
      },
      {
        "number": "5",
        "name": "VS",
        "type": "power_in",
        "description": "High-side floating supply return; recommended range is -5 V to 300 V, with transient negative VS of -50 V allowed for a 50 ns pulse."
      },
      {
        "number": "6",
        "name": "CS",
        "type": "input",
        "description": "Current sense input to the current sense comparator; the positive-going threshold is 1.8 V typical (1.5 V to 2.1 V), and the recommended signal range is VS to VS + 5 V."
      },
      {
        "number": "7",
        "name": "HO",
        "type": "output",
        "description": "High-side gate drive output, swinging between VS and VB to drive the high-side N-channel MOSFET or IGBT."
      },
      {
        "number": "8",
        "name": "VB",
        "type": "power_in",
        "description": "High-side floating bootstrap supply; recommended range is VS + 8 V to VS + 20 V, with an absolute maximum of -0.3 V to 322 V."
      }
    ],
    "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 FAULT pin name in the source text is garbled into spaced letters with underscores (rendered as a; Pin types were assigned from the datasheet's function descriptions using KiCad ERC classes (power_in"
        ],
        "pages_sent": 11,
        "cost_usd": 0.0347,
        "at": "2026-10-18T08:57:40"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590921133267243008",
        "pages": 11,
        "sha256": "d9c612fc7528d911",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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      {
        "file": "ir21271str-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
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        "sha256": "84cf6f6010cd210d73915ef8a6d38db5bccafc122c0ec1e353f546e39ca0f7ed",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "UMW",
      "Package": "SOP-8",
      "Category": "Motor Driver ICs",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "d9c612fc7528d9116e41de76c6124a929281e7136a362610d8d613ab8396e816",
      "rows": [
        {
          "name": "High side floating supply voltage (VB)",
          "symbol": "VB",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 322,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Low side and main power supply (VCC)",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 22,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "dVS/dt allowable offset supply voltage transient",
          "symbol": "dVS/dt",
          "kind": "absolute_maximum",
          "unit": "V/ns",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Package power dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 0.625,
          "conditions": "TA ≤25°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Junction to ambient thermal resistance",
          "symbol": "RthJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "TS",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Lead temperature (soldering)",
          "symbol": "TL",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "Soldering, 10 seconds",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "High side floating supply return (VS)",
          "symbol": "VS",
          "kind": "recommended_operating",
          "unit": "V",
          "min": -5,
          "typ": null,
          "max": 300,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Low side and main power supply (VCC)",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 8,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Logic input of IN",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "FAULT output voltage",
          "symbol": "VFLT",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Ambient temperature",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Turn-on propagation delay",
          "symbol": "tON",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 150,
          "max": 250,
          "conditions": "VS=0V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Turn-off propagation delay",
          "symbol": "tOFF",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 150,
          "max": 250,
          "conditions": "VS=300V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Turn-on rise time",
          "symbol": "tR",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 80,
          "max": 130,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Turn-off fall time",
          "symbol": "tF",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 40,
          "max": 70,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Start-up blanking time",
          "symbol": "tBL",
          "kind": "timing",
          "unit": "ns",
          "min": 550,
          "typ": 750,
          "max": 950,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "CS shutdown propagation delay",
          "symbol": "tCS",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 65,
          "max": 360,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "CS to FAULT pull-up propagation delay",
          "symbol": "tflt",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 270,
          "max": 510,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Logic 1 (IN) input voltage",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.5,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Logic 0 (IN) input voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "VCC=10Vto 20V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "CS input positive going threshold",
          "symbol": "VCSTH+",
          "kind": "electrical",
          "unit": "V",
          "min": 1.5,
          "typ": 1.8,
          "max": 2.1,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VBS supply UVLO threshold (positive going)",
          "symbol": "VBSUV+",
          "kind": "electrical",
          "unit": "V",
          "min": 6.3,
          "typ": 7.2,
          "max": 8.2,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VBS supply UVLO threshold (negative going)",
          "symbol": "VBSUV-",
          "kind": "electrical",
          "unit": "V",
          "min": 6,
          "typ": 6.8,
          "max": 7.7,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "High-side floating supply leakage current",
          "symbol": "ILK",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "VB=VS=300V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Quiescent VB supply current",
          "symbol": "IQBS",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 300,
          "max": 800,
          "conditions": "VIN=0V or 5V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Quiescent VCC supply current",
          "symbol": "IQCC",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 60,
          "max": 120,
          "conditions": "VIN=0V or 5V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "High CS bias current (CS=3V)",
          "symbol": "ICS+",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "CS=3V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "High CS bias current (CS=0V)",
          "symbol": "ICS-",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "CS=0V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "High level output voltage, VBIAS - VO",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.2,
          "conditions": "IO=2mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Low level output voltage, VO",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Logic 1 input bias current",
          "symbol": "IIN+",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 7,
          "max": 15,
          "conditions": "VIN=5V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Logic 0 input bias current",
          "symbol": "IIN-",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0,
          "max": 5,
          "conditions": "VIN=0V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output high short circuit pulsed current",
          "symbol": "IO+",
          "kind": "electrical",
          "unit": "mA",
          "min": 200,
          "typ": 300,
          "max": null,
          "conditions": "VO=0V PW≤10us",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output low short circuit pulsed current",
          "symbol": "IO-",
          "kind": "electrical",
          "unit": "mA",
          "min": 420,
          "typ": 600,
          "max": null,
          "conditions": "VO=15V PW≤10us",
          "source_page": 5,
          "source": "datasheet"
        }
      ]
    }
  },
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    "viewers",
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  "discovery_triggers": [
    "ir21271str"
  ],
  "discovery_pitch": "IR21271STR (UMW) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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