UCC21738QDWRQ1

{
  "slug": "ucc21738qdwrq1",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Isolators - Gate Drivers, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "ucc21738qdwrq1",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ucc21738qdwrq1.kicad_sym",
    "ucc21738qdwrq1.kicad_mod",
    "ucc21738qdwrq1.glb",
    "ucc21738qdwrq1.step",
    "ucc21738qdwrq1.lbr",
    "docs/hero.png",
    "docs/ucc21738qdwrq1-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ucc21738qdwrq1-hero.glb",
    "ucc21738qdwrq1-hero.overlay.json",
    "ucc21738qdwrq1-etched.glb"
  ],
  "component": {
    "mpn": "UCC21738QDWRQ1",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-16",
    "pin_count": 16,
    "category": "Power Management (PMIC)",
    "subcategory": "Isolators - Gate Drivers",
    "datasheet": "https://www.ti.com/lit/ds/symlink/ucc21738-q1.pdf?ts=1704294192548&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FUCC21738-Q1",
    "parts": {
      "symbol": "ucc21738qdwrq1.kicad_sym",
      "footprint": "ucc21738qdwrq1.kicad_mod",
      "model_3d": "ucc21738qdwrq1-hero.glb",
      "model_3d_plain": "ucc21738qdwrq1-etched.glb",
      "model_3d_step": "ucc21738qdwrq1-etched.step",
      "model_3d_step_plain": "ucc21738qdwrq1.step",
      "lbr": "ucc21738qdwrq1.lbr"
    },
    "distributor_links": {
      "lcsc": "C22445590",
      "digikey": "296-UCC21738QDWRQ1TR-ND",
      "mouser": "595-UCC21738QDWRQ1"
    },
    "distributor_check": {
      "checked_at": "2026-11-02T16:44:20Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-UCC21738QDWRQ1TR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-UCC21738QDWRQ1",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "ASC",
        "type": "input",
        "description": "Active high input that enables the active short circuit function to force the output high during system failure events; tie to COM if unused."
      },
      {
        "number": "2",
        "name": "OC",
        "type": "input",
        "description": "Overcurrent detection input for SenseFET, DESAT, and shunt resistor sensing; tie to COM if unused."
      },
      {
        "number": "3",
        "name": "COM",
        "type": "power_in",
        "description": "Common ground reference that connects to the emitter pin for IGBT or the source pin for SiC MOSFET."
      },
      {
        "number": "4",
        "name": "OUTH",
        "type": "output",
        "description": "Gate driver pull-up output."
      },
      {
        "number": "5",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive gate drive supply rail, to be bypassed with a >10-µF capacitor to COM placed close to the pin to support the specified source peak current."
      },
      {
        "number": "6",
        "name": "OUTL",
        "type": "output",
        "description": "Gate driver pull-down output."
      },
      {
        "number": "7",
        "name": "CLMPE",
        "type": "output",
        "description": "External active Miller clamp control that connects to the gate of the external Miller clamp MOSFET; leave floating if unused."
      },
      {
        "number": "8",
        "name": "VEE",
        "type": "power_in",
        "description": "Negative gate drive supply rail, to be bypassed with a >10-µF capacitor to COM placed close to the pin to support the specified sink peak current."
      },
      {
        "number": "9",
        "name": "GND",
        "type": "power_in",
        "description": "Input power supply and logic ground reference."
      },
      {
        "number": "10",
        "name": "IN+",
        "type": "input",
        "description": "Noninverting gate driver control input; tie to VCC if unused."
      },
      {
        "number": "11",
        "name": "IN-",
        "type": "input",
        "description": "Inverting gate driver control input; tie to GND if unused."
      },
      {
        "number": "12",
        "name": "RDY",
        "type": "output",
        "description": "Open-drain power-good output for VCC-GND and VDD-COM that can be paralleled with other RDY signals."
      },
      {
        "number": "13",
        "name": "FLT",
        "type": "output",
        "description": "Open-drain active-low fault alarm output asserted upon overcurrent or short circuit that can be paralleled with other faults."
      },
      {
        "number": "14",
        "name": "RST/EN",
        "type": "input",
        "description": "Enables or shuts down the output side (regular turn-off when set low) and resets an OC condition on FLT when held low for more than 1000 ns; tie to IN+ for automatic reset."
      },
      {
        "number": "15",
        "name": "VCC",
        "type": "power_in",
        "description": "Input power supply from 3 V to 5.5 V, to be bypassed with a >1-µF capacitor to GND placed close to the pin."
      },
      {
        "number": "16",
        "name": "APWM",
        "type": "output",
        "description": "Isolated PWM output that monitors the ASC pin status; leave floating if unused."
      }
    ],
    "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": [],
        "pages_sent": 11,
        "cost_usd": 0.0193,
        "at": "2026-11-02T16:44:08"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/ucc21738-q1.pdf?ts=1704294192548&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FUCC21738-Q1",
        "pages": 53,
        "sha256": "86319bfd941feb0e",
        "source_tier": "mfr"
      },
      "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": "ucc21738qdwrq1.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": "2026-11-02",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ucc21738qdwrq1-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": "92600f1142b86d466bb9acaefa75014152b5ee41ef732aa1c7795f7b3895fbe2",
        "checked": "2026-11-02",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}