UCC21540ADWR

{
  "slug": "ucc21540adwr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Isolators - Gate Drivers, SOIC-16-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "ucc21540adwr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ucc21540adwr.kicad_sym",
    "ucc21540adwr.kicad_mod",
    "ucc21540adwr.glb",
    "ucc21540adwr.step",
    "ucc21540adwr.lbr",
    "docs/hero.png",
    "docs/ucc21540adwr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ucc21540adwr-hero.glb",
    "ucc21540adwr-hero.overlay.json"
  ],
  "component": {
    "mpn": "UCC21540ADWR",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-16-300mil",
    "pin_count": 16,
    "category": "Power Management (PMIC)",
    "subcategory": "Isolators - Gate Drivers",
    "datasheet": "https://www.ti.com/cn/lit/gpn/ucc21540a",
    "parts": {
      "symbol": "ucc21540adwr.kicad_sym",
      "footprint": "ucc21540adwr.kicad_mod",
      "model_3d": "ucc21540adwr-hero.glb",
      "model_3d_plain": "ucc21540adwr.glb",
      "model_3d_step": "ucc21540adwr-etched.step",
      "model_3d_step_plain": "ucc21540adwr.step",
      "lbr": "ucc21540adwr.lbr"
    },
    "distributor_links": {
      "lcsc": 2878545,
      "digikey": "296-UCC21540ADWRTR-ND",
      "mouser": "595-UCC21540ADWR"
    },
    "distributor_check": {
      "checked_at": "2026-10-05T22:47:18Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-UCC21540ADWRTR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-UCC21540ADWR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "INA",
        "type": "input",
        "description": "Input signal for channel A with TTL/CMOS compatible threshold and 0.8V input hysteresis; internally pulled low when open circuit."
      },
      {
        "number": "2",
        "name": "INB",
        "type": "input",
        "description": "Input signal for channel B with TTL/CMOS compatible threshold and 0.8V input hysteresis; internally pulled low when open circuit."
      },
      {
        "number": "3",
        "name": "VCCI",
        "type": "power_in",
        "description": "Primary side power supply voltage with 3V to 18V operating range; decouple locally to GND with low ESR/ESL capacitor."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Primary side ground reference; all primary side signals referenced to this ground."
      },
      {
        "number": "5",
        "name": "DIS",
        "type": "input",
        "description": "Disable input; when set high disables both driver outputs; when set low enables outputs; recommended 1nF bypass capacitor for noise immunity."
      },
      {
        "number": "6",
        "name": "DT",
        "type": "input",
        "description": "Dead time programming pin; connect to VCCI to disable dead time function or place resistor RDT between DT and GND to program dead time using DT(ns) = 10 × RDT(kΩ); recommended ≤1nF bypass capacitor."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; can be left floating or connected to VCCI or GND."
      },
      {
        "number": "8",
        "name": "VCCI",
        "type": "power_in",
        "description": "Primary side power supply voltage internally shorted to pin 3; preferred to bypass pins 3-4 rather than pins 8-4."
      },
      {
        "number": "9",
        "name": "VSSB",
        "type": "power_in",
        "description": "Secondary side ground for driver B; ground reference for secondary side channel B."
      },
      {
        "number": "10",
        "name": "OUTB",
        "type": "output",
        "description": "Driver B output for controlling B channel FET or IGBT gate; peak sink current 6A maximum."
      },
      {
        "number": "11",
        "name": "VDDB",
        "type": "power_in",
        "description": "Secondary side power supply for driver B with 6.5V to 25V operating range; decouple locally to VSSB with low ESR/ESL capacitor."
      },
      {
        "number": "12",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; recommended to leave floating to maximize creepage distance from driver A to driver B."
      },
      {
        "number": "13",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; recommended to leave floating to maximize creepage distance from driver A to driver B; this pin is removed in SOIC-14 DWK package."
      },
      {
        "number": "14",
        "name": "VSSA",
        "type": "power_in",
        "description": "Secondary side ground for driver A; ground reference for secondary side channel A."
      },
      {
        "number": "15",
        "name": "OUTA",
        "type": "output",
        "description": "Driver A output for controlling A channel FET or IGBT gate; peak source current 4A maximum."
      },
      {
        "number": "16",
        "name": "VDDA",
        "type": "power_in",
        "description": "Secondary side power supply for driver A with 6.5V to 25V operating range; decouple locally to VSSA with low ESR/ESL capacitor."
      }
    ],
    "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": [],
        "pages_sent": 45,
        "cost_usd": 0.3863,
        "at": "2026-10-05T22:47:03"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/ucc21540a",
        "pages": 54,
        "sha256": "436d808da2107def",
        "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"
    }
  }
}