ISOW7741FQDFMRQ1

{
  "slug": "isow7741fqdfmrq1",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Digital Isolators, SOIC-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "communication interface chip-uart-485-232",
    "isow7741fqdfmrq1",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "isow7741fqdfmrq1.kicad_sym",
    "isow7741fqdfmrq1.kicad_mod",
    "isow7741fqdfmrq1.glb",
    "isow7741fqdfmrq1.step",
    "isow7741fqdfmrq1.lbr",
    "docs/hero.png",
    "docs/isow7741fqdfmrq1-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "isow7741fqdfmrq1-hero.glb",
    "isow7741fqdfmrq1-hero.overlay.json",
    "isow7741fqdfmrq1-etched.glb"
  ],
  "component": {
    "mpn": "ISOW7741FQDFMRQ1",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-20",
    "pin_count": 20,
    "category": "Communication Interface Chip/UART/485/232",
    "subcategory": "Digital Isolators",
    "datasheet": "https://www.ti.com/lit/ds/symlink/isow7741-q1.pdf",
    "parts": {
      "symbol": "isow7741fqdfmrq1.kicad_sym",
      "footprint": "isow7741fqdfmrq1.kicad_mod",
      "model_3d": "isow7741fqdfmrq1-hero.glb",
      "model_3d_plain": "isow7741fqdfmrq1-etched.glb",
      "model_3d_step": "isow7741fqdfmrq1-etched.step",
      "model_3d_step_plain": "isow7741fqdfmrq1.step",
      "lbr": "isow7741fqdfmrq1.lbr"
    },
    "distributor_links": {
      "lcsc": "C6968794",
      "digikey": "296-ISOW7741FQDFMRQ1TR-ND",
      "mouser": "595-ISOW7741FQDFMRQ1"
    },
    "distributor_check": {
      "checked_at": "2026-10-30T11:58:06Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-ISOW7741FQDFMRQ1TR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-ISOW7741FQDFMRQ1",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VIO",
        "type": "power_in",
        "description": "Side 1 logic supply (1.71V to 5.5V)."
      },
      {
        "number": "2",
        "name": "INA",
        "type": "input",
        "description": "Input channel A."
      },
      {
        "number": "3",
        "name": "INB",
        "type": "input",
        "description": "Input channel B."
      },
      {
        "number": "4",
        "name": "INC",
        "type": "input",
        "description": "Input channel C."
      },
      {
        "number": "5",
        "name": "OUTD",
        "type": "output",
        "description": "Output channel D."
      },
      {
        "number": "6",
        "name": "GNDIO",
        "type": "power_in",
        "description": "Ground connection for VIO; GND1 and GNDIO need to be shorted on board."
      },
      {
        "number": "7",
        "name": "EN_IO1",
        "type": "input",
        "description": "Output Enable 1: high or open enables side 1 channel outputs; low puts side 1 outputs in high impedance and disables side 1 input transmitters."
      },
      {
        "number": "8",
        "name": "EN/FLT",
        "type": "bidirectional",
        "description": "Multi-function pin used either as DC-DC converter enable input (high to VIO level enables, low at GND1 level disables) or as active-low fault output (needs 5kΩ or greater pull-up)."
      },
      {
        "number": "9",
        "name": "VDD",
        "type": "power_in",
        "description": "Side 1 DC-DC converter power supply (3V to 5.5V)."
      },
      {
        "number": "10",
        "name": "GND1",
        "type": "power_in",
        "description": "Ground connection for VDD; GND1 and GNDIO need to be shorted on board."
      },
      {
        "number": "11",
        "name": "GND2",
        "type": "power_in",
        "description": "Ground connection for VISOOUT; GND2 and GISOIN can be shorted on board or connected through a ferrite bead."
      },
      {
        "number": "12",
        "name": "VISOOUT",
        "type": "power_out",
        "description": "Isolated power converter output voltage; VISOIN and VISOOUT can be shorted on board or connected through a ferrite bead."
      },
      {
        "number": "13",
        "name": "VSEL",
        "type": "input",
        "description": "VISOOUT selection: 5V when shorted to VISOOUT, 3.3V when shorted to GND2."
      },
      {
        "number": "14",
        "name": "EN_IO2",
        "type": "input",
        "description": "Output Enable 2: high or open enables side 2 channel outputs; low puts side 2 outputs in high impedance and disables side 2 input transmitters."
      },
      {
        "number": "15",
        "name": "GISOIN",
        "type": "power_in",
        "description": "Ground connection for VISOIN; GND2 and GISOIN can be shorted on board or connected through a ferrite bead."
      },
      {
        "number": "16",
        "name": "IND",
        "type": "input",
        "description": "Input channel D."
      },
      {
        "number": "17",
        "name": "OUTC",
        "type": "output",
        "description": "Output channel C."
      },
      {
        "number": "18",
        "name": "OUTB",
        "type": "output",
        "description": "Output channel B."
      },
      {
        "number": "19",
        "name": "OUTA",
        "type": "output",
        "description": "Output channel A."
      },
      {
        "number": "20",
        "name": "VISOIN",
        "type": "power_in",
        "description": "Side 2 supply voltage for isolation channels; VISOIN and VISOOUT can be shorted on board or connected through a ferrite bead."
      }
    ],
    "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: MPN is the ISOW7741 (not ISOW7742) variant, so pin 4 = INC and pin 17 = OUTC per the ISOW7741-Q1 col; Pin types are inferred from the datasheet's I/O/I/O and dash entries. Supply and ground types (power"
        ],
        "pages_sent": 8,
        "cost_usd": 0.0988,
        "at": "2026-10-30T11:57:49"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/isow7741-q1.pdf",
        "pages": 59,
        "sha256": "5406e11d61ba200a",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 20,
        "described": 20,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "isow7741fqdfmrq1.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          10.3,
          12.8,
          2.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "59a10b341e6972b31d81802a048060326da627d8b92dcf4263064f4f62ec808e",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "isow7741fqdfmrq1-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          10.3,
          12.8,
          2.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f8a2517f76cb611fcf34101bdd481d37fda89d665e0a77821c7afbf386a8423b",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "DFM0020A",
      "source_page": 49,
      "D": {
        "nom_mm": 12.83,
        "range_mm": [
          12.73,
          12.93
        ]
      },
      "E1": {
        "nom_mm": 7.5,
        "range_mm": [
          7.4,
          7.6
        ]
      },
      "E": {
        "nom_mm": 10.3,
        "range_mm": [
          9.97,
          10.63
        ]
      },
      "e": {
        "nom_mm": 1.27,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 3.55,
        "range_mm": [
          null,
          3.55
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "isow7741fqdfmrq1.step",
        "verdict": "PASS",
        "reasons": [
          "height and body within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  }
}