UCC28056ADBVR

{
  "schema_version": 1,
  "type": "component",
  "slug": "ucc28056adbvr",
  "title": "UCC28056ADBVR",
  "brief": "Texas Instruments AC-DC Controllers And Regulators, SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management (pmic)",
    "ucc28056adbvr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "UCC28056ADBVR",
    "manufacturer": "Texas Instruments",
    "package": "SOT-23-6",
    "pin_count": 6,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://www.ti.com/cn/lit/gpn/ucc28056",
    "parts": {
      "symbol": "ucc28056adbvr.kicad_sym",
      "footprint": "ucc28056adbvr.kicad_mod",
      "model_3d": "ucc28056adbvr-hero.glb",
      "model_3d_plain": "ucc28056adbvr.glb",
      "model_3d_step": "ucc28056adbvr-etched.step",
      "model_3d_step_plain": "ucc28056adbvr.step",
      "lbr": "ucc28056adbvr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2859064",
      "digikey": "296-UCC28056ADBVRTR-ND",
      "mouser": "595-UCC28056ADBVR"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T16:15:57Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-UCC28056ADBVRTR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-UCC28056ADBVR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VOSNS",
        "type": "input",
        "description": "Voltage error amplifier inverting input, regulated against the internal VOSReg reference of 2.45-2.55 V (2.5 V typical), which also provides first-level output overvoltage protection: switching is suspended when VOSNS rises above VOvp1Rise (2.69-2.81 V) and resumes when it falls below VOvp1Fall (2.60-2.73 V) at VCC = 12 V."
      },
      {
        "number": "2",
        "name": "ZCD/CS",
        "type": "input",
        "description": "Input fed by a resistor divider across the power MOSFET drain and source that senses the current-sense voltage while DRV is high (overcurrent thresholds 0.5 V for Ocp1 and 0.75 V for Ocp2) and the drain waveform while DRV is low (zero-current detection, line feedforward, line undervoltage, and second-level output overvoltage at 1.125 V), with absolute maximum rating -0.5 to 7 V."
      },
      {
        "number": "3",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply pin: switching starts once VCC exceeds VCCStart and stops if VCC stays below VCCStop for longer than TUVLOBlk, with the device to be supplied from 11 V to 34 V and an absolute maximum of 36 V."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Controller ground reference, to be connected only to the terminal of the current-sense resistor RCS on the power-stage side, so that the ZCD/CS-to-GND voltage equals the RCS voltage during MOSFET conduction."
      },
      {
        "number": "5",
        "name": "DRV",
        "type": "bidirectional",
        "description": "Gate drive output for the main power MOSFET, internally limited to VDRHigh (10-15 V, 13.7 V typical at VCC = 25 V) with a peak sink current of 1 A and peak source current of -0.7 A, where an external resistor from DRV to GND selects the valley-switching delay TZCDR during startup and absolute maximum is -0.3 to 20 V."
      },
      {
        "number": "6",
        "name": "COMP",
        "type": "bidirectional",
        "description": "Internal transconductance error amplifier output and power-demand input, where the voltage-loop compensation RC network connects from this pin to GND, the pin is internally clamped to 5.5-5.71 V high, switching turns off below VBSTFall (0.5 V) and back on above VBSTRise (0.625 V) for burst mode, and the absolute maximum rating is -0.5 to 7 V."
      }
    ],
    "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 lists COMP and DRV as type I/O. They are mapped here to KiCad bidirectional; the datas; The pinout is taken from the DBV 6-pin SOT-23 pin table on page 3 and applies to the UCC28056ADBVR ("
        ],
        "pages_sent": 34,
        "cost_usd": 0.1775,
        "at": "2026-10-08T16:15:34"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/ucc28056",
        "pages": 49,
        "sha256": "c9fa6ad1b816408d",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ucc28056adbvr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "c9fe686b4d1b56927a41fa84a9bc1efb61d8a45a123a3db43bcaa05c2891d635",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ucc28056adbvr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "0d62c021093110fa74ecbc438e7954812996c137069c910c38ecad1f864a7cfd",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOT-23-6",
      "Category": "Power Management (PMIC)",
      "Pins": "6"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ucc28056adbvr"
  ],
  "discovery_pitch": "UCC28056ADBVR (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ucc28056adbvr.kicad_sym",
    "ucc28056adbvr.kicad_mod",
    "ucc28056adbvr.glb",
    "ucc28056adbvr.step",
    "ucc28056adbvr.lbr",
    "docs/hero.png",
    "docs/ucc28056adbvr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
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    "ucc28056adbvr-hero.overlay.json"
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  "visibility": {
    "public": true
  }
}