UCC25706D

{
  "slug": "ucc25706d",
  "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)",
    "ucc25706d",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "ucc25706d.kicad_sym",
    "ucc25706d.kicad_mod",
    "ucc25706d.glb",
    "ucc25706d.step",
    "ucc25706d.lbr",
    "docs/hero.png",
    "docs/ucc25706d-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ucc25706d-hero.glb",
    "ucc25706d-hero.overlay.json"
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  "component": {
    "mpn": "UCC25706D",
    "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/ucc25705",
    "parts": {
      "symbol": "ucc25706d.kicad_sym",
      "footprint": "ucc25706d.kicad_mod",
      "model_3d": "ucc25706d-hero.glb",
      "model_3d_plain": "ucc25706d.glb",
      "model_3d_step": "ucc25706d-etched.step",
      "model_3d_step_plain": "ucc25706d.step",
      "lbr": "ucc25706d.lbr"
    },
    "distributor_links": {
      "lcsc": "C2863542",
      "digikey": "2156-UCC25706D-ND",
      "mouser": "595-UCC25706D"
    },
    "distributor_check": {
      "checked_at": "2026-10-09T09:03:45Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "2156-UCC25706D-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-UCC25706D",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "ILIM",
        "type": "input",
        "description": "Provides pulse-by-pulse current limit by terminating the PWM pulse when the input is above 200 mV, with a typical 25 ns path to reset the PWM latch."
      },
      {
        "number": "2",
        "name": "FB",
        "type": "input",
        "description": "Input to the PWM comparator intended to interface with an optocoupler, with a typical input impedance of 50 kΩ."
      },
      {
        "number": "3",
        "name": "VFF",
        "type": "input",
        "description": "Feed-forward pin that provides a voltage proportional to the input supply; when VFF is below 1.0 V both the output and oscillator are disabled."
      },
      {
        "number": "4",
        "name": "DISCH",
        "type": "input",
        "description": "A resistor to VIN sets the oscillator discharge current for the maximum duty cycle clamp, and IDISCH must be between 25 µA and 250 µA over the entire VIN range."
      },
      {
        "number": "5",
        "name": "RC",
        "type": "passive",
        "description": "Oscillator timing pin where the on-time is set by RT and CT and the off-time by RDISCH and CT in clamp mode, and which provides a low-impedance path to ground for CT when DISCH is grounded."
      },
      {
        "number": "6",
        "name": "GND",
        "type": "power_in",
        "description": "Ground return pin for the device."
      },
      {
        "number": "7",
        "name": "OUT",
        "type": "output",
        "description": "Intended to drive an external FET driver or other high-impedance circuits and not directly a power MOSFET, with about 60 Ω pull-up and 30 Ω pull-down output resistance."
      },
      {
        "number": "8",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply pin that should be bypassed with a 0.1-µF capacitor; the UVLO function keeps startup current low and holds circuits inactive until VDD is valid."
      }
    ],
    "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 datasheet's D/P package top-view text is flattened in extraction (pin numbers and labels were li; Pin types for DISCH and RC are not stated explicitly in the datasheet; they were assigned as input a; Pin descriptions are summarized from the Pin Descriptions section on page 4 and cite that page; the "
        ],
        "pages_sent": 23,
        "cost_usd": 0.0826,
        "at": "2026-10-09T09:03:30"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/ucc25705",
        "pages": 23,
        "sha256": "121bdd15995942af",
        "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"
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    "models_3d": [
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ucc25706d-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
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        "sha256": "77161344bc69ec388a77cbf910c124b985483658ca296f8a45ee4342f8d6a119",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  }
}