UCC2960D

{
  "slug": "ucc2960d",
  "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)",
    "ucc2960d",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ucc2960d.kicad_sym",
    "ucc2960d.kicad_mod",
    "ucc2960d.glb",
    "ucc2960d.step",
    "ucc2960d.lbr",
    "docs/hero.png",
    "docs/ucc2960d-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ucc2960d-hero.glb",
    "ucc2960d-hero.overlay.json"
  ],
  "component": {
    "mpn": "UCC2960D",
    "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/ucc2960",
    "parts": {
      "symbol": "ucc2960d.kicad_sym",
      "footprint": "ucc2960d.kicad_mod",
      "model_3d": "ucc2960d-hero.glb",
      "model_3d_plain": "ucc2960d.glb",
      "model_3d_step": "ucc2960d-etched.step",
      "model_3d_step_plain": "ucc2960d.step",
      "lbr": "ucc2960d.lbr"
    },
    "distributor_links": {
      "lcsc": "C2871284",
      "digikey": "2156-UCC2960D-ND",
      "mouser": "595-UCC2960D"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T01:02:33Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "2156-UCC2960D-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-UCC2960D",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "SS",
        "type": "input",
        "description": "Primary-side soft-start pin: an external capacitor to GND sets the rate at which the PWM duty cycle increases at startup, charged by a nominal 7-µA source, and the pin also serves as the AC ground return for the feedback pulse transformer."
      },
      {
        "number": "2",
        "name": "FB",
        "type": "input",
        "description": "Control input for the differentiated start/stop pulses from the secondary-side PWM controller, which must have an amplitude of at least VSS ± 2.0 V for 25 ns to 200 ns per pulse and must not exceed VSS ± 7.0 V."
      },
      {
        "number": "3",
        "name": "RT",
        "type": "input",
        "description": "A resistor from this pin to GND sets the free-running startup oscillator frequency, with RT specified from 22.2 kΩ to 133 kΩ for 360 kHz down to 60 kHz."
      },
      {
        "number": "4",
        "name": "REF",
        "type": "output",
        "description": "The 5-V reference output supports external loads up to 10 mA and should be bypassed with at least 0.1 µF to GND."
      },
      {
        "number": "5",
        "name": "CS",
        "type": "input",
        "description": "Pulse-by-pulse and shutdown overcurrent sense input: a level above the 1.0-V threshold terminates the pulse, and a signal above 1.375 V initiates a complete shutdown."
      },
      {
        "number": "6",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for all analog functions, which must be kept as clean as possible from switching noise and closely bypassed to VDD."
      },
      {
        "number": "7",
        "name": "OUT",
        "type": "output",
        "description": "Drive pin for the external N-channel MOSFET power switch, sinking 1.5 A and sourcing 0.75 A, with a minimum of 4 Ω in series recommended to keep the driver within its safe operating area."
      },
      {
        "number": "8",
        "name": "VDD",
        "type": "power_in",
        "description": "Power input for the control circuitry and MOSFET gate charge current, to be closely bypassed with at least 1.0 µF to GND, and internally clamped at 17.5 V so external current limiting is needed if the source can exceed this."
      }
    ],
    "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 were taken from the page 2 pinout (TOP VIEW) and confirmed against the page 4 "
        ],
        "pages_sent": 14,
        "cost_usd": 0.075,
        "at": "2026-10-08T01:02:15"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/ucc2960",
        "pages": 14,
        "sha256": "b1e28c27a8a3f0c9",
        "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"
    },
    "models_3d": [
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        "file": "ucc2960d.step",
        "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": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ucc2960d-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "96b488c477c80315999aa66ebbadbbfccdebf0f40ef634da597f3d4cae0c44f1",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}