UCC3804PWTR

{
  "schema_version": 1,
  "type": "component",
  "slug": "ucc3804pwtr",
  "title": "UCC3804PWTR",
  "brief": "Texas Instruments AC-DC Controllers And Regulators, TSSOP-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)",
    "ucc3804pwtr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "UCC3804PWTR",
    "manufacturer": "Texas Instruments",
    "package": "TSSOP-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": "ucc3804pwtr.kicad_sym",
      "footprint": "ucc3804pwtr.kicad_mod",
      "model_3d": "ucc3804pwtr-hero.glb",
      "model_3d_plain": "ucc3804pwtr.glb",
      "model_3d_step": "ucc3804pwtr-etched.step",
      "model_3d_step_plain": "ucc3804pwtr.step",
      "lbr": "ucc3804pwtr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2866348",
      "digikey": "UCC3804PWTR-ND",
      "mouser": "595-UCC3804PWTR"
    },
    "distributor_check": {
      "checked_at": "2026-10-12T10:07:33Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "UCC3804PWTR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-UCC3804PWTR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "COMP",
        "type": "output",
        "description": "COMP is the error amplifier output and PWM comparator input; the low-output-impedance error amplifier can both source and sink current, and forcing COMP to GND gives zero duty cycle."
      },
      {
        "number": "2",
        "name": "FB",
        "type": "input",
        "description": "FB is the inverting input of the error amplifier, and the FB lead 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 100 ns digital leading-edge blanking after OUT rises, and exceeding the over-current threshold (1.55 V typical, 1.42 V to 1.68 V) triggers a soft-start cycle."
      },
      {
        "number": "4",
        "name": "RC",
        "type": "input",
        "description": "RC is the oscillator timing pin, where a resistor from REF sets the charging current and a timing capacitor to GND sets the frequency; timing resistors should be 10 kΩ to 200 kΩ, timing capacitors 100 pF to 1000 pF, and resistors below 10 kΩ must not be used."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "GND is the reference and power ground for all functions on the device, and signal return paths 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 for MOSFET gates, capable of driving peak currents above ±750 mA (absolute maximum OUT current ±1 A), and is held actively low while 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 supply of 11 V from a low-impedance source, an absolute maximum of 12 V and 30 mA, and an internal zener clamp of about 13.5 V typical."
      },
      {
        "number": "8",
        "name": "REF",
        "type": "output",
        "description": "REF is the voltage reference for the error amplifier and other internal circuits, must be bypassed to GND with at least a 0.1 µF ceramic capacitor placed close to the pin, and is pulled low through 5 kΩ when VCC is above 1 V and below the UVLO threshold."
      }
    ],
    "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 pin table (Table 5-1, pages 4-5) is headed 'SOIC', and the PW TSSOP pinout (Figure 5-2, page 3) ; The datasheet classifies VCC as 'I' (input). It is entered here as power_in because it is the supply; The datasheet classifies COMP as output, but it also serves as the PWM comparator input. The entry u"
        ],
        "pages_sent": 43,
        "cost_usd": 0.2326,
        "at": "2026-10-12T10:07:18"
      },
      "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"
    },
    "models_3d": [
      {
        "file": "ucc3804pwtr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "cf28a51742b2e31065e201d1b313207140cbfb49062efd938788f7a310d02738",
        "checked": "2026-10-12",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ucc3804pwtr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "56fda73f20afe1ff902feea70a033823229f4ff4c2b35bf0190706f7ee8f777c",
        "checked": "2026-10-12",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "TSSOP-8",
      "Category": "Power Management (PMIC)",
      "Pins": "8"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ucc3804pwtr"
  ],
  "discovery_pitch": "UCC3804PWTR (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": [
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    "README.md",
    "ucc3804pwtr.kicad_sym",
    "ucc3804pwtr.kicad_mod",
    "ucc3804pwtr.glb",
    "ucc3804pwtr.step",
    "ucc3804pwtr.lbr",
    "docs/hero.png",
    "docs/ucc3804pwtr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ucc3804pwtr-hero.glb",
    "ucc3804pwtr-hero.overlay.json"
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  "visibility": {
    "public": true
  }
}