UCC21550BDWR

{
  "slug": "ucc21550bdwr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Others, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "others",
    "ucc21550bdwr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ucc21550bdwr.kicad_sym",
    "ucc21550bdwr.kicad_mod",
    "ucc21550bdwr.glb",
    "ucc21550bdwr.step",
    "ucc21550bdwr.lbr",
    "docs/hero.png",
    "docs/ucc21550bdwr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ucc21550bdwr-hero.glb",
    "ucc21550bdwr-hero.overlay.json",
    "ucc21550bdwr-etched.glb"
  ],
  "component": {
    "mpn": "UCC21550BDWR",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-16",
    "pin_count": 16,
    "category": "Others",
    "subcategory": "Others",
    "datasheet": "https://www.ti.com/lit/ds/symlink/ucc21550.pdf?ts=1704488082590&ref_url=https%253A%252F%252Fwww.ti.com%252Fsitesearch%252Fen-us%252Fdocs%252Funiversalsearch.tsp%253FlangPref%253Den-US%2526searchTerm%253DUCC21550ADWR%2526nr%253D3",
    "parts": {
      "symbol": "ucc21550bdwr.kicad_sym",
      "footprint": "ucc21550bdwr.kicad_mod",
      "model_3d": "ucc21550bdwr-hero.glb",
      "model_3d_plain": "ucc21550bdwr-etched.glb",
      "model_3d_step": "ucc21550bdwr-etched.step",
      "model_3d_step_plain": "ucc21550bdwr.step",
      "lbr": "ucc21550bdwr.lbr"
    },
    "distributor_links": {
      "lcsc": "C22445586"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T22:51:58Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 850 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "INA",
        "type": "input",
        "description": "Input signal for A channel with TTL/CMOS compatible threshold, pulled low internally if left open; an RC filter of R = 10 Ω to 100 Ω and C = 10 pF to 100 pF is recommended."
      },
      {
        "number": "2",
        "name": "INB",
        "type": "input",
        "description": "Input signal for B channel with TTL/CMOS compatible threshold, pulled low internally if left open; an RC filter of R = 10 Ω to 100 Ω and C = 10 pF to 100 pF is recommended."
      },
      {
        "number": "3",
        "name": "VCCI",
        "type": "power_in",
        "description": "Primary-side supply voltage (3.0 V to 5.5 V recommended), to be decoupled locally to GND with a low ESR/ESL capacitor close to the device."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Primary-side ground reference to which all primary-side signals are referenced."
      },
      {
        "number": "5",
        "name": "DIS",
        "type": "input",
        "description": "Disables both driver outputs when high and enables both when low, internally pulled high if floating, and recommended to be tied to ground if unused (RC filter R = 0 Ω to 100 Ω, C = 100 pF to 1000 pF when driven from a microcontroller)."
      },
      {
        "number": "6",
        "name": "DT",
        "type": "input",
        "description": "Dead time programming pin: floating or shorted to VCCI disables the interlock, a 1.7 kΩ to 100 kΩ resistor to GND sets minimum dead time, and 0 Ω to 150 Ω or a short to GND interlocks the outputs; no ceramic capacitor above 1 nF is recommended."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "8",
        "name": "VCCI",
        "type": "power_in",
        "description": "Primary-side supply voltage, internally shorted to pin 3."
      },
      {
        "number": "9",
        "name": "VSSB",
        "type": "power_in",
        "description": "Ground reference for secondary side B channel."
      },
      {
        "number": "10",
        "name": "OUTB",
        "type": "output",
        "description": "Output of driver B, connected to the gate of the B channel transistor through a gate resistor."
      },
      {
        "number": "11",
        "name": "VDDB",
        "type": "power_in",
        "description": "Secondary-side power for driver B (9.2 V to 25 V recommended for the B version), decoupled locally to VSSB with a low ESR/ESL capacitor close to the device."
      },
      {
        "number": "12",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "13",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "14",
        "name": "VSSA",
        "type": "power_in",
        "description": "Ground reference for secondary side A channel."
      },
      {
        "number": "15",
        "name": "OUTA",
        "type": "output",
        "description": "Output of driver A, connected to the gate of the A channel transistor through a gate resistor."
      },
      {
        "number": "16",
        "name": "VDDA",
        "type": "power_in",
        "description": "Secondary-side power for driver A (9.2 V to 25 V recommended for the B version), decoupled locally to VSSA with a low ESR/ESL capacitor close to the device."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 17,
        "cost_usd": 0.1549,
        "at": "2026-10-22T22:51:44"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/ucc21550.pdf?ts=1704488082590&ref_url=https%253A%252F%252Fwww.ti.com%252Fsitesearch%252Fen-us%252Fdocs%252Funiversalsearch.tsp%253FlangPref%253Den-US%2526searchTerm%253DUCC21550ADWR%2526nr%253D3",
        "pages": 54,
        "sha256": "5f80a86ae72418d7",
        "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": "ucc21550bdwr.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": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ucc21550bdwr-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": "e1f9d76871cc110e4d99951a7d4429897cc58a340e8818fec8222b0162713077",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}