TPS23881RTQR

{
  "slug": "tps23881rtqr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Ethernet Transceivers, QFN-56-EP(8x8). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "interface",
    "tps23881rtqr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tps23881rtqr.kicad_sym",
    "tps23881rtqr.kicad_mod",
    "tps23881rtqr.glb",
    "tps23881rtqr.step",
    "tps23881rtqr.lbr",
    "docs/hero.png",
    "docs/tps23881rtqr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "component": {
    "mpn": "TPS23881RTQR",
    "manufacturer": "Texas Instruments",
    "package": "QFN-56-EP(8x8)",
    "pin_count": 57,
    "category": "Interface",
    "subcategory": "Ethernet Transceivers",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tps23881",
    "parts": {
      "symbol": "tps23881rtqr.kicad_sym",
      "footprint": "tps23881rtqr.kicad_mod",
      "model_3d": "tps23881rtqr-etched.glb",
      "model_3d_plain": "tps23881rtqr.glb",
      "model_3d_step": "tps23881rtqr-etched.step",
      "model_3d_step_plain": "tps23881rtqr.step",
      "lbr": "tps23881rtqr.lbr"
    },
    "distributor_links": {
      "lcsc": "C469893",
      "digikey": "296-TPS23881RTQRTR-ND",
      "mouser": "595-TPS23881RTQR"
    },
    "distributor_check": {
      "checked_at": "2026-10-01T16:00:14Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-TPS23881RTQRTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-TPS23881RTQR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GAT1",
        "type": "output",
        "description": "Channel 1 gate drive output to the external N-channel MOSFET; leave floating if unused."
      },
      {
        "number": "2",
        "name": "SEN1",
        "type": "input",
        "description": "Channel 1 current-sense input referenced to KSENSA via the 0.200\u03a9 sense resistor; connect to GND if the channel is unused."
      },
      {
        "number": "3",
        "name": "DRAIN1",
        "type": "input",
        "description": "Channel 1 output voltage monitor and detection sense; may be floated or grounded if unused."
      },
      {
        "number": "4",
        "name": "KSENSA",
        "type": "input",
        "description": "Kelvin point connection for SEN1 and SEN2."
      },
      {
        "number": "5",
        "name": "DRAIN2",
        "type": "input",
        "description": "Channel 2 output voltage monitor and detection sense; may be floated or grounded if unused."
      },
      {
        "number": "6",
        "name": "SEN2",
        "type": "input",
        "description": "Channel 2 current-sense input referenced to KSENSA via the 0.200\u03a9 sense resistor; connect to GND if the channel is unused."
      },
      {
        "number": "7",
        "name": "GAT2",
        "type": "output",
        "description": "Channel 2 gate drive output to the external N-channel MOSFET; leave floating if unused."
      },
      {
        "number": "8",
        "name": "GAT3",
        "type": "output",
        "description": "Channel 3 gate drive output to the external N-channel MOSFET; leave floating if unused."
      },
      {
        "number": "9",
        "name": "SEN3",
        "type": "input",
        "description": "Channel 3 current-sense input referenced to KSENSB via the 0.200\u03a9 sense resistor; connect to GND if the channel is unused."
      },
      {
        "number": "10",
        "name": "DRAIN3",
        "type": "input",
        "description": "Channel 3 output voltage monitor and detection sense; may be floated or grounded if unused."
      },
      {
        "number": "11",
        "name": "KSENSB",
        "type": "input",
        "description": "Kelvin point connection for SEN3 and SEN4."
      },
      {
        "number": "12",
        "name": "DRAIN4",
        "type": "input",
        "description": "Channel 4 output voltage monitor and detection sense; may be floated or grounded if unused."
      },
      {
        "number": "13",
        "name": "SEN4",
        "type": "input",
        "description": "Channel 4 current-sense input referenced to KSENSB via the 0.200\u03a9 sense resistor; connect to GND if the channel is unused."
      },
      {
        "number": "14",
        "name": "GAT4",
        "type": "output",
        "description": "Channel 4 gate drive output to the external N-channel MOSFET; leave floating if unused."
      },
      {
        "number": "15",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect; internally biased at 1/3 or 2/3 of VPWR to grade the VPWR voltage gradient, keep open."
      },
      {
        "number": "16",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect; internally biased at 1/3 or 2/3 of VPWR to grade the VPWR voltage gradient, keep open."
      },
      {
        "number": "17",
        "name": "VPWR",
        "type": "power_in",
        "description": "Analog 54V positive supply (44V to 57V recommended, 70V absolute max), bypassed with 0.1\u00b5F to AGND."
      },
      {
        "number": "18",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect; internally biased at 1/3 or 2/3 of VPWR to grade the VPWR voltage gradient, keep open."
      },
      {
        "number": "19",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect; internally biased at 1/3 or 2/3 of VPWR to grade the VPWR voltage gradient, keep open."
      },
      {
        "number": "20",
        "name": "TEST4",
        "type": "bidirectional",
        "description": "Internal test pin used for test purposes only; keep open."
      },
      {
        "number": "21",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground; connect to the GND plane and exposed thermal pad."
      },
      {
        "number": "22",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect; keep open."
      },
      {
        "number": "23",
        "name": "TEST1",
        "type": "bidirectional",
        "description": "Internal test pin used for test purposes only (internal 50k\u03a9 typical pull-down); keep open."
      },
      {
        "number": "24",
        "name": "TEST2",
        "type": "bidirectional",
        "description": "Internal test pin used for test purposes only (internal 50k\u03a9 typical pull-down); keep open."
      },
      {
        "number": "25",
        "name": "TEST3",
        "type": "bidirectional",
        "description": "Internal test pin used for test purposes only; keep open."
      },
      {
        "number": "26",
        "name": "TEST0",
        "type": "bidirectional",
        "description": "Internal test pin used for test purposes only (internal 50k\u03a9 typical pull-up); keep open."
      },
      {
        "number": "27",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect; keep open."
      },
      {
        "number": "28",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect; keep open."
      },
      {
        "number": "29",
        "name": "GAT5",
        "type": "output",
        "description": "Channel 5 gate drive output to the external N-channel MOSFET; leave floating if unused."
      },
      {
        "number": "30",
        "name": "SEN5",
        "type": "input",
        "description": "Channel 5 current-sense input referenced to KSENSC via the 0.200\u03a9 sense resistor; connect to GND if the channel is unused."
      },
      {
        "number": "31",
        "name": "DRAIN5",
        "type": "input",
        "description": "Channel 5 output voltage monitor and detection sense; may be floated or grounded if unused."
      },
      {
        "number": "32",
        "name": "KSENSC",
        "type": "input",
        "description": "Kelvin point connection for SEN5 and SEN6."
      },
      {
        "number": "33",
        "name": "DRAIN6",
        "type": "input",
        "description": "Channel 6 output voltage monitor and detection sense; may be floated or grounded if unused."
      },
      {
        "number": "34",
        "name": "SEN6",
        "type": "input",
        "description": "Channel 6 current-sense input referenced to KSENSC via the 0.200\u03a9 sense resistor; connect to GND if the channel is unused."
      },
      {
        "number": "35",
        "name": "GAT6",
        "type": "output",
        "description": "Channel 6 gate drive output to the external N-channel MOSFET; leave floating if unused."
      },
      {
        "number": "36",
        "name": "GAT7",
        "type": "output",
        "description": "Channel 7 gate drive output to the external N-channel MOSFET; leave floating if unused."
      },
      {
        "number": "37",
        "name": "SEN7",
        "type": "input",
        "description": "Channel 7 current-sense input referenced to KSENSD via the 0.200\u03a9 sense resistor; connect to GND if the channel is unused."
      },
      {
        "number": "38",
        "name": "DRAIN7",
        "type": "input",
        "description": "Channel 7 output voltage monitor and detection sense; may be floated or grounded if unused."
      },
      {
        "number": "39",
        "name": "KSENSD",
        "type": "input",
        "description": "Kelvin point connection for SEN7 and SEN8."
      },
      {
        "number": "40",
        "name": "DRAIN8",
        "type": "input",
        "description": "Channel 8 output voltage monitor and detection sense; may be floated or grounded if unused."
      },
      {
        "number": "41",
        "name": "SEN8",
        "type": "input",
        "description": "Channel 8 current-sense input referenced to KSENSD via the 0.200\u03a9 sense resistor; connect to GND if the channel is unused."
      },
      {
        "number": "42",
        "name": "GAT8",
        "type": "output",
        "description": "Channel 8 gate drive output to the external N-channel MOSFET; leave floating if unused."
      },
      {
        "number": "43",
        "name": "VDD",
        "type": "power_in",
        "description": "3.3V digital logic supply (3V to 3.6V recommended), bypassed with 0.1\u00b5F to DGND."
      },
      {
        "number": "44",
        "name": "RESET",
        "type": "input",
        "description": "Active-low reset input that resets the device; internally pulled up to VDD."
      },
      {
        "number": "45",
        "name": "INT",
        "type": "output",
        "description": "Open-drain interrupt output, pulled low when a bit in the interrupt register is set."
      },
      {
        "number": "46",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground; connect to the GND plane and exposed thermal pad."
      },
      {
        "number": "47",
        "name": "TEST5",
        "type": "bidirectional",
        "description": "Internal test pin used for test purposes only; keep open."
      },
      {
        "number": "48",
        "name": "A1",
        "type": "input",
        "description": "I2C address line A1, internally pulled up to VDD."
      },
      {
        "number": "49",
        "name": "A2",
        "type": "input",
        "description": "I2C address line A2, internally pulled up to VDD."
      },
      {
        "number": "50",
        "name": "A3",
        "type": "input",
        "description": "I2C address line A3, internally pulled up to VDD."
      },
      {
        "number": "51",
        "name": "A4",
        "type": "input",
        "description": "I2C address line A4, internally pulled up to VDD."
      },
      {
        "number": "52",
        "name": "AUTO",
        "type": "bidirectional",
        "description": "Autonomous mode enable and selection pin: floating disables autonomous mode, RAUTO to GND selects the port power allocation, with a 10nF capacitor required when RAUTO is used."
      },
      {
        "number": "53",
        "name": "SCL",
        "type": "input",
        "description": "Serial clock input for the I2C bus."
      },
      {
        "number": "54",
        "name": "SDAI",
        "type": "input",
        "description": "Serial data input for the I2C bus; can be tied to SDAO in non-isolated systems."
      },
      {
        "number": "55",
        "name": "SDAO",
        "type": "output",
        "description": "Open-drain I2C serial data output requiring an external pull-up; can be tied to SDAI in non-isolated systems."
      },
      {
        "number": "56",
        "name": "OSS",
        "type": "input",
        "description": "Active-high fast shutdown input for channels 1-8, internally pulled down to DGND with a 1\u00b5s to 5\u00b5s deglitch filter."
      },
      {
        "number": "57",
        "name": "EP",
        "type": "power_in",
        "description": "Exposed thermal pad; DGND and AGND must be connected to it for proper operation."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin 52 conflict: Listed as both NC (no connection) in the NC pins category (page 5) and as AUTO (aut; TEST0-5 pins (20, 23, 24, 25, 26, 47) are listed as for internal use and test only with unclear func",
          "exposed pad 57 added from the footprint"
        ],
        "pages_sent": 73,
        "cost_usd": 0.5609,
        "at": "2026-10-01T15:59:54"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tps23881",
        "pages": 133,
        "sha256": "e4f4fdd814bbae94",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 57,
        "described": 57,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    }
  }
}