UC3867N

{
  "schema_version": 1,
  "type": "component",
  "slug": "uc3867n",
  "title": "UC3867N",
  "brief": "Texas Instruments DC-DC Converters, PDIP-16. 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)",
    "uc3867n",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "UC3867N",
    "manufacturer": "Texas Instruments",
    "package": "PDIP-16",
    "pin_count": 16,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.ti.com/cn/lit/gpn/uc1863",
    "parts": {
      "symbol": "uc3867n.kicad_sym",
      "footprint": "uc3867n.kicad_mod",
      "model_3d": "uc3867n-hero.glb",
      "model_3d_plain": "uc3867n-etched.glb",
      "model_3d_step": "uc3867n-etched.step",
      "model_3d_step_plain": "uc3867n.step",
      "lbr": "uc3867n.lbr"
    },
    "distributor_links": {
      "lcsc": "C1530135",
      "digikey": "296-11324-5-ND",
      "mouser": "595-UC3867N"
    },
    "distributor_check": {
      "checked_at": "2026-10-16T11:32:22Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-11324-5-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-UC3867N",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "5V",
        "type": "power_out",
        "description": "5V generator output that biases internal circuits and supplies up to 10mA for external use, 4.8V to 5.2V over 12V to 20V Vcc."
      },
      {
        "number": "2",
        "name": "NI",
        "type": "input",
        "description": "Non-inverting input of the error amplifier, with absolute maximum input range of -0.4V to 7V."
      },
      {
        "number": "3",
        "name": "INV",
        "type": "input",
        "description": "Inverting input of the error amplifier, with absolute maximum input range of -0.4V to 7V."
      },
      {
        "number": "4",
        "name": "E/A Out",
        "type": "output",
        "description": "Error amplifier output driving the VCO, with absolute maximum output current of ±2mA."
      },
      {
        "number": "5",
        "name": "Sig Gnd",
        "type": "power_in",
        "description": "Signal ground, the reference for all voltages in the datasheet."
      },
      {
        "number": "6",
        "name": "Range",
        "type": "passive",
        "description": "VCO range programming pin, set by a resistor (7.15k in the test conditions) to program the VCO frequency range."
      },
      {
        "number": "7",
        "name": "Rmin",
        "type": "passive",
        "description": "VCO minimum-frequency programming resistor pin (86.6k in the test conditions)."
      },
      {
        "number": "8",
        "name": "Cvco",
        "type": "passive",
        "description": "VCO timing capacitor pin (1nF in the test conditions)."
      },
      {
        "number": "9",
        "name": "RC",
        "type": "passive",
        "description": "One-shot timing resistor/capacitor pin that sets the maximum pulse width (1000ns typical)."
      },
      {
        "number": "10",
        "name": "Zero",
        "type": "input",
        "description": "Zero detection comparator input with 0.5V typical threshold that terminates the one-shot pulse; absolute maximum input -0.4V to 7V."
      },
      {
        "number": "11",
        "name": "A Out",
        "type": "output",
        "description": "Totem-pole FET driver output A with 1A peak drive; absolute maximum source or sink current 0.5A."
      },
      {
        "number": "12",
        "name": "Pwr Gnd",
        "type": "power_in",
        "description": "Power ground for the output FET drivers; absolute maximum voltage relative to signal ground ±0.2V."
      },
      {
        "number": "13",
        "name": "Vcc",
        "type": "power_in",
        "description": "Supply input with undervoltage lockout; absolute maximum 22V."
      },
      {
        "number": "14",
        "name": "B Out",
        "type": "output",
        "description": "Totem-pole FET driver output B with 1A peak drive; absolute maximum source or sink current 0.5A."
      },
      {
        "number": "15",
        "name": "Fault",
        "type": "input",
        "description": "Fault comparator input with 3.00V typical threshold that latches and forces outputs low; absolute maximum input -0.4V to 7V."
      },
      {
        "number": "16",
        "name": "Soft-Ref",
        "type": "bidirectional",
        "description": "Soft-start, restart delay and system reference pin with 5.00V typical precision reference voltage."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Only pages 1-3 were read. Pin descriptions for Range, Rmin, Cvco, RC and Soft-Ref use function names",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 12,
        "cost_usd": 0.3826,
        "at": "2026-10-16T11:31:40"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/uc1863",
        "pages": 15,
        "sha256": "2845c691dbe732c6",
        "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": [
      {
        "file": "uc3867n.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          19.177,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "17a30b1f0ab3fd5384a1231e3c63c394888d5b952c542a8c189e023ed3467464",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "uc3867n-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          19.177,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "3d274ec4c7cd2849e293e792cc84b91be4dab5301f815cdcf45d194e72690d0d",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "PDIP-16",
      "Category": "Power Management (PMIC)",
      "Pins": "16"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "uc3867n"
  ],
  "discovery_pitch": "UC3867N (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",
    "uc3867n.kicad_sym",
    "uc3867n.kicad_mod",
    "uc3867n.glb",
    "uc3867n.step",
    "uc3867n.lbr",
    "docs/hero.png",
    "docs/uc3867n-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "uc3867n-hero.glb",
    "uc3867n-hero.overlay.json",
    "uc3867n-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}