ISOW7843DWER

{
  "slug": "isow7843dwer",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Digital Isolators (With Power), SOIC-16-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "signal isolation devices",
    "isow7843dwer",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "isow7843dwer.kicad_sym",
    "isow7843dwer.kicad_mod",
    "isow7843dwer.glb",
    "isow7843dwer.step",
    "isow7843dwer.lbr",
    "docs/hero.png",
    "docs/isow7843dwer-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "isow7843dwer-hero.glb",
    "isow7843dwer-hero.overlay.json"
  ],
  "component": {
    "mpn": "ISOW7843DWER",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-16-300mil",
    "pin_count": 16,
    "category": "Signal Isolation Devices",
    "subcategory": "Digital Isolators (With Power)",
    "datasheet": "https://www.ti.com/cn/lit/gpn/isow7841",
    "parts": {
      "symbol": "isow7843dwer.kicad_sym",
      "footprint": "isow7843dwer.kicad_mod",
      "model_3d": "isow7843dwer-hero.glb",
      "model_3d_plain": "isow7843dwer.glb",
      "model_3d_step": "isow7843dwer-etched.step",
      "model_3d_step_plain": "isow7843dwer.step",
      "lbr": "isow7843dwer.lbr"
    },
    "distributor_links": {
      "lcsc": "C2872178",
      "digikey": "ISOW7843DWER-ND",
      "mouser": "595-ISOW7843DWER"
    },
    "distributor_check": {
      "checked_at": "2026-10-10T21:57:44Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "ISOW7843DWER-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-ISOW7843DWER",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VCC",
        "type": "power_in",
        "description": "Input-side (primary) supply voltage, referenced to GND1, with a recommended operating range of 3 V to 5.5 V."
      },
      {
        "number": "2",
        "name": "GND1",
        "type": "power_in",
        "description": "Ground connection for VCC on the input side."
      },
      {
        "number": "3",
        "name": "INA",
        "type": "input",
        "description": "Input channel A; the input high threshold is 0.7 × VSI minimum and the input low threshold is 0.3 × VSI maximum, and the output takes its default state (high for non-F devices) when the input is open."
      },
      {
        "number": "4",
        "name": "OUTB",
        "type": "output",
        "description": "Output channel B; recommended output current is limited to 4 mA low-level or 4 mA high-level at VSO = 5 V (2 mA at VSO = 3.3 V)."
      },
      {
        "number": "5",
        "name": "OUTC",
        "type": "output",
        "description": "Output channel C; recommended output current is limited to 4 mA low-level or 4 mA high-level at VSO = 5 V (2 mA at VSO = 3.3 V)."
      },
      {
        "number": "6",
        "name": "OUTD",
        "type": "output",
        "description": "Output channel D; recommended output current is limited to 4 mA low-level or 4 mA high-level at VSO = 5 V (2 mA at VSO = 3.3 V)."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; the datasheet lists this pin as not connected."
      },
      {
        "number": "8",
        "name": "GND1",
        "type": "power_in",
        "description": "Ground connection for VCC on the input side."
      },
      {
        "number": "9",
        "name": "GND2",
        "type": "power_in",
        "description": "Ground connection for VISO on the isolated output side."
      },
      {
        "number": "10",
        "name": "SEL",
        "type": "input",
        "description": "Supply select pin: tie to VISO for VISO = 5 V; tie to GND2 or leave floating for VISO = 3.3 V, with an internal weak pull-down to GND2."
      },
      {
        "number": "11",
        "name": "IND",
        "type": "input",
        "description": "Input channel D; the input high threshold is 0.7 × VSI minimum and the input low threshold is 0.3 × VSI maximum, and the output takes its default state (high for non-F devices) when the input is open."
      },
      {
        "number": "12",
        "name": "INC",
        "type": "input",
        "description": "Input channel C; the input high threshold is 0.7 × VSI minimum and the input low threshold is 0.3 × VSI maximum, and the output takes its default state (high for non-F devices) when the input is open."
      },
      {
        "number": "13",
        "name": "INB",
        "type": "input",
        "description": "Input channel B; the input high threshold is 0.7 × VSI minimum and the input low threshold is 0.3 × VSI maximum, and the output takes its default state (high for non-F devices) when the input is open."
      },
      {
        "number": "14",
        "name": "OUTA",
        "type": "output",
        "description": "Output channel A; recommended output current is limited to 4 mA low-level or 4 mA high-level at VSO = 5 V (2 mA at VSO = 3.3 V)."
      },
      {
        "number": "15",
        "name": "GND2",
        "type": "power_in",
        "description": "Ground connection for VISO on the isolated output side."
      },
      {
        "number": "16",
        "name": "VISO",
        "type": "power_out",
        "description": "Isolated supply output referenced to GND2, set by SEL to 5 V (SEL tied to VISO) or 3.3 V (SEL tied to GND2 or floating)."
      }
    ],
    "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: Pin mapping for ISOW7843 was taken from the ISOW7843 column of the pin-function table (page 6) and c; Pin types are my KiCad-class assignments: VISO as power_out, SEL as input, NC as unconnected. The da; Some limits are cited from sections outside page 6, but source_page points to the pin-definition pag"
        ],
        "pages_sent": 39,
        "cost_usd": 0.1932,
        "at": "2026-10-10T21:57:26"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/isow7841",
        "pages": 58,
        "sha256": "d52d56a624a0bade",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "isow7843dwer.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          9.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-10",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "isow7843dwer-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          9.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3cb39bbabc613f4d669a5af56aacc01abe23ae586f7bc79f36b2d412db8edd53",
        "checked": "2026-10-10",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}