ISO7741DBQR

{
  "schema_version": 1,
  "type": "component",
  "slug": "iso7741dbqr",
  "title": "ISO7741DBQR",
  "brief": "Texas Instruments Digital Isolators, SSOP-16-150mil. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "comm-uart",
    "iso7741dbqr"
  ],
  "component": {
    "mpn": "ISO7741DBQR",
    "manufacturer": "Texas Instruments",
    "package": "SSOP-16-150mil",
    "pin_count": 16,
    "category": "Comm/UART",
    "subcategory": "Digital Isolators",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2303021000_Texas-Instruments-ISO7741DBQR_C913840.pdf",
    "parts": {
      "symbol": "iso7741dbqr.kicad_sym",
      "footprint": "iso7741dbqr.kicad_mod",
      "model_3d": "iso7741dbqr-etched.glb",
      "model_3d_plain": "iso7741dbqr.glb",
      "model_3d_step": "iso7741dbqr-etched.step",
      "model_3d_step_plain": "iso7741dbqr.step",
      "lbr": "iso7741dbqr.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "VCC1",
        "type": "power_in",
        "description": "Power supply, side 1. 2.25 V to 5.5 V with respect to GND1. Bypass with a low-ESR ceramic capacitor to GND1."
      },
      {
        "number": "2",
        "name": "GND1",
        "type": "power_in",
        "description": "Ground reference for VCC1 (side 1). Tied internally to pin 8."
      },
      {
        "number": "3",
        "name": "INA",
        "type": "input",
        "description": "Input, channel A (side 1). CMOS/LVCMOS logic input referenced to VCC1/GND1; VIH >= 0.7*VCC1, VIL <= 0.3*VCC1."
      },
      {
        "number": "4",
        "name": "INB",
        "type": "input",
        "description": "Input, channel B (side 1). CMOS/LVCMOS logic input referenced to VCC1/GND1."
      },
      {
        "number": "5",
        "name": "INC",
        "type": "input",
        "description": "Input, channel C (side 1). CMOS/LVCMOS logic input referenced to VCC1/GND1."
      },
      {
        "number": "6",
        "name": "OUTD",
        "type": "output",
        "description": "Output, channel D (side 1, reverse channel). Push-pull CMOS output driven from IND on side 2, referenced to VCC1/GND1. High-Z when EN1 is low."
      },
      {
        "number": "7",
        "name": "EN1",
        "type": "input",
        "description": "Output enable 1. Output pins on side 1 (OUTD) are enabled when EN1 is high or open; outputs enter high-impedance state when EN1 is low. Internal pull-up."
      },
      {
        "number": "8",
        "name": "GND1",
        "type": "power_in",
        "description": "Ground reference for VCC1 (side 1). Tied internally to pin 2; both should be connected on the PCB."
      },
      {
        "number": "9",
        "name": "GND2",
        "type": "power_in",
        "description": "Ground reference for VCC2 (side 2). Tied internally to pin 15."
      },
      {
        "number": "10",
        "name": "EN2",
        "type": "input",
        "description": "Output enable 2. Output pins on side 2 (OUTA, OUTB, OUTC) are enabled when EN2 is high or open; outputs enter high-impedance state when EN2 is low. Internal pull-up."
      },
      {
        "number": "11",
        "name": "IND",
        "type": "input",
        "description": "Input, channel D (side 2, reverse channel). CMOS/LVCMOS logic input referenced to VCC2/GND2; drives OUTD on side 1."
      },
      {
        "number": "12",
        "name": "OUTC",
        "type": "output",
        "description": "Output, channel C (side 2). Push-pull CMOS output driven from INC on side 1, referenced to VCC2/GND2. High-Z when EN2 is low."
      },
      {
        "number": "13",
        "name": "OUTB",
        "type": "output",
        "description": "Output, channel B (side 2). Push-pull CMOS output driven from INB on side 1, referenced to VCC2/GND2. High-Z when EN2 is low."
      },
      {
        "number": "14",
        "name": "OUTA",
        "type": "output",
        "description": "Output, channel A (side 2). Push-pull CMOS output driven from INA on side 1, referenced to VCC2/GND2. High-Z when EN2 is low."
      },
      {
        "number": "15",
        "name": "GND2",
        "type": "power_in",
        "description": "Ground reference for VCC2 (side 2). Tied internally to pin 9; both should be connected on the PCB."
      },
      {
        "number": "16",
        "name": "VCC2",
        "type": "power_in",
        "description": "Power supply, side 2. 2.25 V to 5.5 V with respect to GND2. Bypass with a low-ESR ceramic capacitor to GND2."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2303021000_Texas-Instruments-ISO7741DBQR_C913840.pdf",
        "pages": 54,
        "sha256": "6d75b03eef5cea97",
        "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": "iso7741dbqr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.8,
          6.2,
          2.1
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d0e11e46aeca5dbaa5c4bb538f3f4899761267cabdeba6486325ae9e979c03ef",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "iso7741dbqr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          6.2,
          2.1
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "52b05a03e636f24f75916ed5dd44839f5acb0eac8f3957dc5d5dd97f8fabb484",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SSOP-16-150mil",
      "Category": "Comm/UART",
      "Pins": "16"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "iso7741dbqr"
  ],
  "discovery_pitch": "ISO7741DBQR (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "iso7741dbqr.kicad_sym",
    "iso7741dbqr.kicad_mod",
    "iso7741dbqr.glb",
    "iso7741dbqr.step",
    "iso7741dbqr-etched.step",
    "iso7741dbqr.lbr",
    "docs/hero.png",
    "docs/iso7741dbqr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "ISO7741DBQR",
      "kind": "packaging"
    },
    {
      "mpn": "ISO7741DBQRDWR",
      "kind": "packaging"
    },
    {
      "mpn": "ISO7741DBQRDW",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-24T23:09:12.251Z"
}