UCC25705DTR

{
  "slug": "ucc25705dtr",
  "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)",
    "ucc25705dtr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ucc25705dtr.kicad_sym",
    "ucc25705dtr.kicad_mod",
    "ucc25705dtr.glb",
    "ucc25705dtr.step",
    "ucc25705dtr.lbr",
    "docs/hero.png",
    "docs/ucc25705dtr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ucc25705dtr-hero.glb",
    "ucc25705dtr-hero.overlay.json"
  ],
  "component": {
    "mpn": "UCC25705DTR",
    "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": "ucc25705dtr.kicad_sym",
      "footprint": "ucc25705dtr.kicad_mod",
      "model_3d": "ucc25705dtr-hero.glb",
      "model_3d_plain": "ucc25705dtr.glb",
      "model_3d_step": "ucc25705dtr-etched.step",
      "model_3d_step_plain": "ucc25705dtr.step",
      "lbr": "ucc25705dtr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2658455",
      "digikey": "UCC25705DTR-ND",
      "mouser": "595-UCC25705DTR"
    },
    "distributor_check": {
      "checked_at": "2026-10-10T17:51:07Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "UCC25705DTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-UCC25705DTR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "ILIM",
        "type": "input",
        "description": "Provides a pulse-by-pulse current limit by terminating the PWM pulse when the input is above 200 mV, giving a high-speed reset path of 25 ns typical."
      },
      {
        "number": "2",
        "name": "FB",
        "type": "input",
        "description": "Input to the PWM comparator intended to interface with an optocoupler, with 50 kΩ typical input impedance and a 15 V absolute maximum rating."
      },
      {
        "number": "3",
        "name": "VFF",
        "type": "input",
        "description": "Feed-forward pin that provides a voltage proportional to the input supply, and both the output and oscillator are disabled when VFF is below 1.0 V; the absolute maximum rating is 7 V."
      },
      {
        "number": "4",
        "name": "DISCH",
        "type": "passive",
        "description": "A resistor to VIN sets the oscillator discharge current for the maximum duty cycle, which must be between 25 µA and 250 µA over the entire VIN range; grounding this pin disables the duty cycle clamp."
      },
      {
        "number": "5",
        "name": "RC",
        "type": "passive",
        "description": "Oscillator timing pin connected to CT, where the on-time is set by RT and CT and the off-time by RDISCH and CT when the duty cycle clamp is used."
      },
      {
        "number": "6",
        "name": "GND",
        "type": "power_in",
        "description": "Ground return pin for the device, and all voltages are referenced to it."
      },
      {
        "number": "7",
        "name": "OUT",
        "type": "output",
        "description": "Drives an external FET driver or other high-impedance circuit and is not intended to directly drive a power MOSFET; the dc output current is rated at ±20 mA absolute maximum."
      },
      {
        "number": "8",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply pin that should be bypassed with a 0.1-µF capacitor for proper operation; the UVLO function provides a low-current startup mode."
      }
    ],
    "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 numbers and names are from the D (SOIC-8) package drawing on page 1 (1 ILIM, 2 FB, 3 VFF, 4 DISC; The datasheet covers the whole UCC25705/25706/35705/35706 family. The UCC25705DTR is the 8.8 V/8 V U; Pin types were assigned by KiCad ERC class from function: DISCH and RC are passive timing nodes, whi"
        ],
        "pages_sent": 23,
        "cost_usd": 0.0818,
        "at": "2026-10-10T17:50:52"
      },
      "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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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "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": "ucc25705dtr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
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          1.75
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "76f132c33f44c132d6b609b1b3c0b450789dd8ce34a56df936ea0eb796ce0e49",
        "checked": "2026-10-10",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
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  }
}