UCC3804D

{
  "slug": "ucc3804d",
  "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)",
    "ucc3804d",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ucc3804d.kicad_sym",
    "ucc3804d.kicad_mod",
    "ucc3804d.glb",
    "ucc3804d.step",
    "ucc3804d.lbr",
    "docs/hero.png",
    "docs/ucc3804d-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ucc3804d-hero.glb",
    "ucc3804d-hero.overlay.json"
  ],
  "component": {
    "mpn": "UCC3804D",
    "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/ucc2805",
    "parts": {
      "symbol": "ucc3804d.kicad_sym",
      "footprint": "ucc3804d.kicad_mod",
      "model_3d": "ucc3804d-hero.glb",
      "model_3d_plain": "ucc3804d.glb",
      "model_3d_step": "ucc3804d-etched.step",
      "model_3d_step_plain": "ucc3804d.step",
      "lbr": "ucc3804d.lbr"
    },
    "distributor_links": {
      "lcsc": "C2863424",
      "digikey": "296-11468-5-ND",
      "mouser": "595-UCC3804D"
    },
    "distributor_check": {
      "checked_at": "2026-10-10T21:54:58Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-11468-5-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": "595-UCC3804D",
        "status": "found",
        "lifecycle": "Obsolete"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "COMP",
        "type": "output",
        "description": "COMP is the error amplifier output and PWM comparator input; the low-output-impedance 2MHz error amplifier can both source and sink current, and forcing COMP to GND externally gives zero duty cycle."
      },
      {
        "number": "2",
        "name": "FB",
        "type": "input",
        "description": "FB is the inverting input of the error amplifier, and its lead length and stray capacitance should be kept as short and small as possible 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 100ns leading-edge blanking interval after the rising edge of OUT."
      },
      {
        "number": "4",
        "name": "RC",
        "type": "input",
        "description": "RC is the oscillator timing pin, where a resistor from REF sets the charging current and a capacitor to GND sets the frequency, with recommended RT of 10k to 200k and CT of 100pF to 1000pF, and RT should never be below 10k."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "GND is the reference and power ground for all functions on the device, and the signal return should be separated from the high-current gate driver path."
      },
      {
        "number": "6",
        "name": "OUT",
        "type": "output",
        "description": "OUT is the high-current power driver output that drives MOSFET gates with peak current exceeding ±750mA, 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, normally fed through a current-limiting resistor, with a recommended 11 V minimum from a low-impedance source and an absolute maximum of 12 V when ICC does not exceed 30 mA."
      },
      {
        "number": "8",
        "name": "REF",
        "type": "output",
        "description": "REF is the voltage reference for the error amplifier and other internal functions, and it requires a ceramic bypass capacitor of at least 0.1µF to GND placed close to the pin, with additional bypass needed for external loads above 2.5mA."
      }
    ],
    "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: UCC3804D is listed in the TI package addendum as Obsolete (SOIC D, 0 to 70 C). The active orderable ; The datasheet pin table gives VCC and REF as type I and O. They are mapped here to KiCad classes pow; The datasheet covers the whole UCC280x/UCC380x family with one shared pin table. Pin numbers and nam"
        ],
        "pages_sent": 43,
        "cost_usd": 0.2314,
        "at": "2026-10-10T21:54:44"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/ucc2805",
        "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"
    },
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        "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": "2026-10-10",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ucc3804d-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "fdf6c39f00443dae3f930bfaa8bfa02ff63ed4d8ad274ddf4af797eeca125214",
        "checked": "2026-10-10",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
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  }
}