UCC28C40QDRQ1

{
  "slug": "ucc28c40qdrq1",
  "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)",
    "ucc28c40qdrq1",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
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    "ucc28c40qdrq1.kicad_mod",
    "ucc28c40qdrq1.glb",
    "ucc28c40qdrq1.step",
    "ucc28c40qdrq1.lbr",
    "docs/hero.png",
    "docs/ucc28c40qdrq1-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
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    "ucc28c40qdrq1-hero.overlay.json"
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  "component": {
    "mpn": "UCC28C40QDRQ1",
    "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/ucc28c44-q1",
    "parts": {
      "symbol": "ucc28c40qdrq1.kicad_sym",
      "footprint": "ucc28c40qdrq1.kicad_mod",
      "model_3d": "ucc28c40qdrq1-hero.glb",
      "model_3d_plain": "ucc28c40qdrq1.glb",
      "model_3d_step": "ucc28c40qdrq1-etched.step",
      "model_3d_step_plain": "ucc28c40qdrq1.step",
      "lbr": "ucc28c40qdrq1.lbr"
    },
    "distributor_links": {
      "lcsc": "C2864613",
      "digikey": "296-UCC28C40QDRQ1TR-ND",
      "mouser": "595-UCC28C40QDRQ1"
    },
    "distributor_check": {
      "checked_at": "2026-10-07T07:59:54Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-UCC28C40QDRQ1TR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-UCC28C40QDRQ1",
        "status": "found"
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    },
    "pins": [
      {
        "number": "1",
        "name": "COMP",
        "type": "output",
        "description": "Error amplifier output for compensation with internal current limiting; can be forced to GND to command zero duty cycle."
      },
      {
        "number": "2",
        "name": "FB",
        "type": "input",
        "description": "Inverting input to error amplifier with noninverting input internally trimmed to 2.5V ±1% for voltage-feedback loop control."
      },
      {
        "number": "3",
        "name": "CS",
        "type": "input",
        "description": "Primary-side current sense pin; noninverting input to PWM comparator connected to MOSFET source resistor to terminate OUT switch conduction."
      },
      {
        "number": "4",
        "name": "RT/CT",
        "type": "bidirectional",
        "description": "Oscillator timing pin with external timing resistor from VREF and capacitor to GND to set switching frequency up to 1MHz."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground return pin for output driver stage and logic level controller section."
      },
      {
        "number": "6",
        "name": "OUT",
        "type": "output",
        "description": "On-chip drive stage output for direct MOSFET driving with ±1A peak current, rail-to-rail voltage swing, and actively held low when VDD below turnon threshold."
      },
      {
        "number": "7",
        "name": "VDD",
        "type": "power_in",
        "description": "Analog controller bias power input with maximum supply voltage 20V; total current is sum of quiescent current and average OUT current."
      },
      {
        "number": "8",
        "name": "VREF",
        "type": "power_in",
        "description": "5V reference voltage output with ±1% tolerance for error amplifier and internal circuits; requires minimum 0.1µF ceramic bypass capacitor to GND."
      }
    ],
    "provenance": {
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      "factory_chain": {
        "factory": "2.0.0",
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        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 11,
        "cost_usd": 0.1169,
        "at": "2026-10-07T07:59:39"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/ucc28c44-q1",
        "pages": 49,
        "sha256": "0ab76ce5a6cf1522",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-07",
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        "role": "eda",
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        "sha256": "ec6d052880a1cc5b29b820cd2c523f6cf00a9bb7f74008cd08b4be22da2defd7",
        "checked": "2026-10-07",
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  }
}