UCC3813D-1

{
  "slug": "ucc3813d-1",
  "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)",
    "ucc3813d-1",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
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    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
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    "ucc3813d-1.kicad_mod",
    "ucc3813d-1.glb",
    "ucc3813d-1.step",
    "ucc3813d-1.lbr",
    "docs/hero.png",
    "docs/ucc3813d-1-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ucc3813d-1-hero.glb",
    "ucc3813d-1-hero.overlay.json"
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  "component": {
    "mpn": "UCC3813D-1",
    "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/ucc3813-0",
    "parts": {
      "symbol": "ucc3813d-1.kicad_sym",
      "footprint": "ucc3813d-1.kicad_mod",
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      "lbr": "ucc3813d-1.lbr"
    },
    "distributor_links": {
      "lcsc": "C1530074",
      "digikey": "296-11493-5-ND",
      "mouser": "595-UCC3813D-1"
    },
    "distributor_check": {
      "checked_at": "2026-10-10T19:45:46Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-11493-5-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": "595-UCC3813D-1",
        "status": "found",
        "lifecycle": "Obsolete"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "COMP",
        "type": "output",
        "description": "COMP is the error amplifier output and the PWM comparator input, with feedback loop compensation applied between this pin and FB; the error amplifier has internal current limiting, so COMP can be forced to GND to specify zero duty cycle."
      },
      {
        "number": "2",
        "name": "FB",
        "type": "input",
        "description": "FB is the inverting input of the error amplifier, and its lead should be kept as short as possible with minimum stray capacitance for best stability."
      },
      {
        "number": "3",
        "name": "CS",
        "type": "input",
        "description": "CS is the input to both the PWM current-sense comparator and the overcurrent comparator, with 100 ns leading-edge blanking and a 1.5 V overcurrent threshold."
      },
      {
        "number": "4",
        "name": "RC",
        "type": "input",
        "description": "RC is the oscillator timing pin, where an external resistor from REF and a capacitor to GND set the switching frequency and maximum duty cycle; RT should never be less than 10 kΩ, and the recommended range is 10 kΩ to 200 kΩ with CT from 100 pF to 1000 pF."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "GND is the reference signal ground and power ground for all functions of the device."
      },
      {
        "number": "6",
        "name": "OUT",
        "type": "output",
        "description": "OUT is the high-current power driver output for the power MOSFET gate, capable of peak currents above ±750 mA (up to ±1 A), and is actively held low when VCC is below the UVLO threshold."
      },
      {
        "number": "7",
        "name": "VCC",
        "type": "power_in",
        "description": "VCC is the device bias supply input, normally connected to a low-impedance source through a current-limiting resistor, with an absolute maximum of 12 V, an internal zener clamp of about 13.5 V, and a 0.1 µF ceramic bypass capacitor placed close to the pin."
      },
      {
        "number": "8",
        "name": "REF",
        "type": "output",
        "description": "REF is the 5 V voltage reference for the error amplifier and other internal functions (UCCx813-1 uses the 5 V reference) and also supplies logic power; it requires at least a 0.1 µF ceramic bypass and its output current is rated at 5 mA."
      }
    ],
    "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 pinout is taken from the 8-pin D (SOIC) and N (PDIP) pin table on page 3, which is shared across; The datasheet supplied is the Chinese translation (TI does not guarantee translation accuracy); pin "
        ],
        "pages_sent": 37,
        "cost_usd": 0.2011,
        "at": "2026-10-10T19:45:31"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/ucc3813-0",
        "pages": 53,
        "sha256": "a3de7ecd3190d33a",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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        "units": "mm",
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        "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": "ucc3813d-1-etched.step",
        "role": "eda",
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}