UCC2801DTR

{
  "slug": "ucc2801dtr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments AC-DC Controllers And Regulators, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "ucc2801dtr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ucc2801dtr.kicad_sym",
    "ucc2801dtr.kicad_mod",
    "ucc2801dtr.glb",
    "ucc2801dtr.step",
    "ucc2801dtr.lbr",
    "docs/hero.png",
    "docs/ucc2801dtr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ucc2801dtr-hero.glb",
    "ucc2801dtr-hero.overlay.json"
  ],
  "component": {
    "mpn": "UCC2801DTR",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://www.ti.com/cn/lit/gpn/ucc2801",
    "parts": {
      "symbol": "ucc2801dtr.kicad_sym",
      "footprint": "ucc2801dtr.kicad_mod",
      "model_3d": "ucc2801dtr-hero.glb",
      "model_3d_plain": "ucc2801dtr.glb",
      "model_3d_step": "ucc2801dtr-etched.step",
      "model_3d_step_plain": "ucc2801dtr.step",
      "lbr": "ucc2801dtr.lbr"
    },
    "distributor_links": {
      "lcsc": "C523786",
      "digikey": "296-27157-2-ND",
      "mouser": "595-UCC2801DTR"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T19:00:13Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-27157-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-UCC2801DTR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "COMP",
        "type": "output",
        "description": "COMP is the error amplifier output and PWM comparator input; it is a low-output-impedance amplifier that can source and sink current, and forcing it to GND gives zero duty cycle."
      },
      {
        "number": "2",
        "name": "FB",
        "type": "input",
        "description": "FB is the inverting input of the error amplifier, and its trace should be kept as short as possible with minimal stray capacitance for best stability."
      },
      {
        "number": "3",
        "name": "CS",
        "type": "input",
        "description": "CS is the input to the PWM comparator and the over-current comparator, with an internal 100 ns leading-edge blanking; the over-current threshold is 1.55 V typical and the cycle-by-cycle current limit is 1 V typical."
      },
      {
        "number": "4",
        "name": "RC",
        "type": "input",
        "description": "RC is the oscillator timing pin, with a timing resistor from REF to RC (recommended 10 kΩ to 200 kΩ, never below 10 kΩ) and a timing capacitor from RC to GND (recommended 100 pF to 1000 pF)."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "GND is the reference and power ground for all functions on the device, and the datasheet recommends separating signal return and high-current gate-driver paths."
      },
      {
        "number": "6",
        "name": "OUT",
        "type": "output",
        "description": "OUT is the high-current power driver output for MOSFET gates, capable of driving peak currents above ±750 mA, and it is actively held low when VCC is below its threshold."
      },
      {
        "number": "7",
        "name": "VCC",
        "type": "power_in",
        "description": "VCC is the device supply input, which should be fed through a current-limiting resistor and bypassed with at least 1 µF in parallel with a 0.1 µF ceramic capacitor; the absolute maximum is 12 V from a low-impedance source, with an internal zener clamp typically at 13.5 V."
      },
      {
        "number": "8",
        "name": "REF",
        "type": "output",
        "description": "REF is the 5 V voltage reference for the error amplifier and other internal circuits, which must be bypassed to GND with at least a 0.1 µF ceramic capacitor placed close to the pin, and external loads above 2.5 mA require additional bypassing."
      }
    ],
    "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: The datasheet labels VCC as input (I); it is mapped to power_in because it is the device supply conn; Pinout taken from the D (SOIC-8) package drawing and Table 5-1; the ordering addendum lists UCC2801D"
        ],
        "pages_sent": 43,
        "cost_usd": 0.2375,
        "at": "2026-10-08T18:59:56"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/ucc2801",
        "pages": 59,
        "sha256": "3f7e3ad23bdb4f2f",
        "source_tier": "lcsc"
      },
      "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": [
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        "file": "ucc2801dtr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ucc2801dtr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
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          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "a1d4370cbca9242066699d9b8f85261b4e545ec29a3cb6a594f3db99cda3c6de",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}