UCC28C54QDRQ1

{
  "schema_version": 1,
  "type": "component",
  "slug": "ucc28c54qdrq1",
  "title": "UCC28C54QDRQ1",
  "brief": "Texas Instruments AC-DC Controllers And Regulators, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management (pmic)",
    "ucc28c54qdrq1",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "UCC28C54QDRQ1",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://www.ti.com/lit/ds/symlink/ucc28c54qdrq1.pdf",
    "parts": {
      "symbol": "ucc28c54qdrq1.kicad_sym",
      "footprint": "ucc28c54qdrq1.kicad_mod",
      "model_3d": "ucc28c54qdrq1-hero.glb",
      "model_3d_plain": "ucc28c54qdrq1.glb",
      "model_3d_step": "ucc28c54qdrq1-etched.step",
      "model_3d_step_plain": "ucc28c54qdrq1.step",
      "lbr": "ucc28c54qdrq1.lbr"
    },
    "distributor_links": {
      "lcsc": "C20346036",
      "digikey": "296-UCC28C54QDRQ1TR-ND",
      "mouser": "595-UCC28C54QDRQ1"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T00:35:20Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-UCC28C54QDRQ1TR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-UCC28C54QDRQ1",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "COMP",
        "type": "output",
        "description": "Error amplifier output for loop compensation that can source and sink current and is internally current-limited so forcing COMP to GND commands zero duty cycle, with a 10 mA maximum error amplifier sink current and analog input range of -0.3 V to 6.3 V."
      },
      {
        "number": "2",
        "name": "FB",
        "type": "input",
        "description": "Inverting input of the error amplifier, where the noninverting input is internally trimmed to 2.5 V ±1% and the analog input range is -0.3 V to 6.3 V."
      },
      {
        "number": "3",
        "name": "CS",
        "type": "input",
        "description": "Primary-side current sense input to the PWM comparator that terminates OUT conduction, has a typical gain of 3 V/V, and may need an RC filter against leading-edge noise."
      },
      {
        "number": "4",
        "name": "RT/CT",
        "type": "bidirectional",
        "description": "Oscillator timing pin where a timing resistor from VREF and a timing capacitor to GND set fOSC, with TI recommending 1 kΩ to 100 kΩ and 220 pF to 4.7 nF; on the UCC28C54 the switching frequency is one-half of fOSC."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground return for the output driver stage and the logic-level controller, and TI recommends keeping the signal return separate from the high-current gate driver path."
      },
      {
        "number": "6",
        "name": "OUT",
        "type": "output",
        "description": "Totem-pole gate driver output that sources and sinks up to 1 A peak and is held low when VDD is below turn-on; on the UCC28C54 it runs at one-half the oscillator frequency due to an internal T flip-flop, limiting duty cycle to below 50%."
      },
      {
        "number": "7",
        "name": "VDD",
        "type": "power_in",
        "description": "Analog controller bias supply with a 30 V absolute maximum and 30 mA maximum input current, requiring a 0.1 µF bypass to GND placed directly at the pin plus added capacitance at least 10 times the main switching FET gate capacitance and 10 times the VREF bypass capacitance."
      },
      {
        "number": "8",
        "name": "VREF",
        "type": "power_out",
        "description": "5-V reference output that supplies the oscillator timing charging current, requires a minimum 0.1 µF ceramic bypass to GND placed as close to the pin as possible, and must not have any higher external voltage superimposed on it, with an absolute maximum of 7 V."
      }
    ],
    "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": [
          "extractor flagged: Pin types were mapped to KiCad ERC classes. The datasheet lists VDD as 'I' and VREF as 'O'; VDD is s; The pinout is taken from the Figure 6-1 D package (8-pin SOIC top view) and Table 6-1 on PAGE 4. The; The 12 supplied pages include the mechanical outline on PAGE 51 but not the full pin-to-pad dimensio"
        ],
        "pages_sent": 12,
        "cost_usd": 0.0828,
        "at": "2026-10-08T00:35:03"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/ucc28c54qdrq1.pdf",
        "pages": 54,
        "sha256": "17e157e3c78ffd7e",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ucc28c54qdrq1.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ucc28c54qdrq1-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "1ac7d8394f5d8c137bf6531bb9576d8828be268c9895b4e5563f7dd96b567887",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOIC-8",
      "Category": "Power Management (PMIC)",
      "Pins": "8"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ucc28c54qdrq1"
  ],
  "discovery_pitch": "UCC28C54QDRQ1 (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ucc28c54qdrq1.kicad_sym",
    "ucc28c54qdrq1.kicad_mod",
    "ucc28c54qdrq1.glb",
    "ucc28c54qdrq1.step",
    "ucc28c54qdrq1.lbr",
    "docs/hero.png",
    "docs/ucc28c54qdrq1-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ucc28c54qdrq1-hero.glb",
    "ucc28c54qdrq1-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}