UCC3806DWTR

{
  "slug": "ucc3806dwtr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments AC-DC Controllers And Regulators, SOIC-16-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "ucc3806dwtr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ucc3806dwtr.kicad_sym",
    "ucc3806dwtr.kicad_mod",
    "ucc3806dwtr.glb",
    "ucc3806dwtr.step",
    "ucc3806dwtr.lbr",
    "docs/hero.png",
    "docs/ucc3806dwtr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ucc3806dwtr-hero.glb",
    "ucc3806dwtr-hero.overlay.json"
  ],
  "component": {
    "mpn": "UCC3806DWTR",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-16-300mil",
    "pin_count": 16,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://www.ti.com/cn/lit/gpn/ucc2806",
    "parts": {
      "symbol": "ucc3806dwtr.kicad_sym",
      "footprint": "ucc3806dwtr.kicad_mod",
      "model_3d": "ucc3806dwtr-hero.glb",
      "model_3d_plain": "ucc3806dwtr.glb",
      "model_3d_step": "ucc3806dwtr-etched.step",
      "model_3d_step_plain": "ucc3806dwtr.step",
      "lbr": "ucc3806dwtr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2658773",
      "digikey": "2156-UCC3806DWTR-UT-ND",
      "mouser": "595-UCC3806DWTR"
    },
    "distributor_check": {
      "checked_at": "2026-10-07T21:30:26Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "2156-UCC3806DWTR-UT-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-UCC3806DWTR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CURLIM",
        "type": "input",
        "description": "Programs the primary current limit threshold and determines whether the device latches off or retries after an overcurrent; the voltage must stay below 350 mV for a restart."
      },
      {
        "number": "2",
        "name": "VREF",
        "type": "power_out",
        "description": "5.1 V ±1% trimmed reference output with 5 mA maximum available current, which must be bypassed to GND with at least a 0.1-µF ceramic capacitor."
      },
      {
        "number": "3",
        "name": "CS--",
        "type": "input",
        "description": "Inverting input of the 3× differential current sense amplifier."
      },
      {
        "number": "4",
        "name": "CS+",
        "type": "input",
        "description": "Non-inverting input of the 3× differential current sense amplifier."
      },
      {
        "number": "5",
        "name": "NI",
        "type": "input",
        "description": "Non-inverting input of the error amplifier."
      },
      {
        "number": "6",
        "name": "INV",
        "type": "input",
        "description": "Inverting input of the error amplifier."
      },
      {
        "number": "7",
        "name": "COMP",
        "type": "output",
        "description": "Output of the error amplifier and input of the PWM comparator; zero duty cycle is commanded by externally forcing COMP to GND."
      },
      {
        "number": "8",
        "name": "CT",
        "type": "input",
        "description": "Oscillator timing capacitor connection, charged by the RT current and discharged to GND through a 2.5-mA sink to set dead time."
      },
      {
        "number": "9",
        "name": "RT",
        "type": "input",
        "description": "Oscillator timing resistor connection, nominally 1.25 V; the mirrored current is limited to 100 µA so RT must be greater than 12.5 kΩ."
      },
      {
        "number": "10",
        "name": "SYNC",
        "type": "bidirectional",
        "description": "Bidirectional TTL-compatible synchronization pin that outputs a pulse during oscillator dead time, and becomes an input disabling the internal oscillator when RT is forced above 4.4 V."
      },
      {
        "number": "11",
        "name": "AOUT",
        "type": "output",
        "description": "High-current gate drive for the external MOSFET, with duty cycle variable from 0% to 50%."
      },
      {
        "number": "12",
        "name": "GND",
        "type": "power_in",
        "description": "Reference ground and power ground for all functions of the device."
      },
      {
        "number": "13",
        "name": "VC",
        "type": "power_in",
        "description": "Input supply connection for the FET drive outputs, with an input range of 2.5 V to 15 V, which should be capacitively bypassed."
      },
      {
        "number": "14",
        "name": "BOUT",
        "type": "output",
        "description": "High-current gate drive for the external MOSFET, alternating with AOUT."
      },
      {
        "number": "15",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply connection for the device, internally limited by a 15 V shunt regulator with shunt current limited to 25 mA and bypassed with at least 0.01 µF ceramic."
      },
      {
        "number": "16",
        "name": "SHUTDOWN",
        "type": "input",
        "description": "Protection input; when driven above 1 V, AOUT and BOUT are forced low."
      }
    ],
    "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 for VREF (power_out), VC and VIN (power_in) are my KiCad mapping of the datasheet's 'O' an; The datasheet names this package 'DW SOICW-16' and does not state '300 mil' in the text. The DW wide; Pin numbers were taken from the D/DW/J/M/N/PW column of the terminal-functions table and cross-check"
        ],
        "pages_sent": 14,
        "cost_usd": 0.0977,
        "at": "2026-10-07T21:30:06"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/ucc2806",
        "pages": 36,
        "sha256": "20f40789e136b23c",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "file": "ucc3806dwtr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          9.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ucc3806dwtr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          9.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "e3b2aca5431a59cb63d0bb7daf2fd33ef8a1161260c99b5de3573ad70122925f",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}