UCC28084PWR

{
  "slug": "ucc28084pwr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments DC-DC Controllers, TSSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power supply chip",
    "ucc28084pwr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ucc28084pwr.kicad_sym",
    "ucc28084pwr.kicad_mod",
    "ucc28084pwr.glb",
    "ucc28084pwr.step",
    "ucc28084pwr.lbr",
    "docs/hero.png",
    "docs/ucc28084pwr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ucc28084pwr-hero.glb",
    "ucc28084pwr-hero.overlay.json"
  ],
  "component": {
    "mpn": "UCC28084PWR",
    "manufacturer": "Texas Instruments",
    "package": "TSSOP-8",
    "pin_count": 8,
    "category": "Power Supply Chip",
    "subcategory": "DC-DC Controllers",
    "datasheet": "https://www.ti.com/lit/ds/symlink/ucc28084.pdf",
    "parts": {
      "symbol": "ucc28084pwr.kicad_sym",
      "footprint": "ucc28084pwr.kicad_mod",
      "model_3d": "ucc28084pwr-hero.glb",
      "model_3d_plain": "ucc28084pwr.glb",
      "model_3d_step": "ucc28084pwr-etched.step",
      "model_3d_step_plain": "ucc28084pwr.step",
      "lbr": "ucc28084pwr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2658597",
      "digikey": "296-UCC28084PWRTR-ND",
      "mouser": "595-UCC28084PWR"
    },
    "distributor_check": {
      "checked_at": "2026-10-11T07:36:18Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-UCC28084PWRTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-UCC28084PWR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "OUTA",
        "type": "output",
        "description": "Alternating high-current output stage capable of 500-mA peak source and 1-A peak sink current, switching at half the oscillator frequency."
      },
      {
        "number": "2",
        "name": "VDD",
        "type": "power_in",
        "description": "Power input connection, absolute maximum 15 V (IDD < 10 mA), to be bypassed to GND with a 1-µF ceramic capacitor close to the chip."
      },
      {
        "number": "3",
        "name": "CTRL",
        "type": "input",
        "description": "Error voltage input to the PWM comparator, with an internal divider ratio of 0.45, typically driven from a secondary-side error amplifier through an opto-coupler."
      },
      {
        "number": "4",
        "name": "ISET",
        "type": "input",
        "description": "Current selection for slope compensation, programmed by a resistor RSET to ground (ISLOPE = 5 x ISET, RSET minimum >5 kΩ)."
      },
      {
        "number": "5",
        "name": "CS",
        "type": "input",
        "description": "Current-sense input to the PWM comparator, cycle-by-cycle peak current comparator and overcurrent comparator (0.75 V typ threshold, triggers a soft-start cycle), with an internal MOSFET discharging the filter capacitor."
      },
      {
        "number": "6",
        "name": "RT",
        "type": "input",
        "description": "Oscillator programming pin where an external resistor to ground (25 kΩ to 698 kΩ recommended) sets the frequency, with nominal pin voltage of 1.5 V."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Reference ground and power ground for all functions, requiring a low-impedance circuit board ground plane."
      },
      {
        "number": "8",
        "name": "OUTB",
        "type": "output",
        "description": "Alternating high-current output stage capable of 500-mA peak source and 1-A peak sink current, switching at half the oscillator frequency."
      }
    ],
    "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 PW pin numbers were assigned from the page-2 TSSOP top-view drawing, whose text layer lists the ; Internal inconsistency in the datasheet: the TSSOP layout section says 'RT and OUTB (pins 6 and 8)',; The datasheet gives no separate definitions for pin types beyond the terminal functions table; types"
        ],
        "pages_sent": 15,
        "cost_usd": 0.0809,
        "at": "2026-10-11T07:36:02"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/ucc28084.pdf",
        "pages": 28,
        "sha256": "19bab60962d5c6f5",
        "source_tier": "mfr"
      },
      "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": [
      {
        "file": "ucc28084pwr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          1.1
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "cf28a51742b2e31065e201d1b313207140cbfb49062efd938788f7a310d02738",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ucc28084pwr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          1.1
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "38806988053aaec8308d4e6319b68c7cf95485bfdc66b50666f31d83f1af4d39",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}