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Ray Set visibility: public b16afdd 3h ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "ucc28633dr",
  "title": "UCC28633DR",
  "brief": "Texas Instruments AC-DC Controllers And Regulators, SOIC-7. 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)",
    "ucc28633dr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "UCC28633DR",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-7",
    "pin_count": 7,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://www.ti.com/lit/ds/symlink/ucc28633.pdf",
    "parts": {
      "symbol": "ucc28633dr.kicad_sym",
      "footprint": "ucc28633dr.kicad_mod",
      "model_3d": "ucc28633dr-hero.glb",
      "model_3d_plain": "ucc28633dr-etched.glb",
      "model_3d_step": "ucc28633dr-etched.step",
      "model_3d_step_plain": "ucc28633dr.step",
      "lbr": "ucc28633dr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2866976",
      "digikey": "296-44965-2-ND",
      "mouser": "595-UCC28633DR"
    },
    "distributor_check": {
      "checked_at": "2026-11-06T00:03:22Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-44965-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-UCC28633DR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VSENSE",
        "type": "input",
        "description": "Sense pin for the flyback transformer bias and sense winding used for output feedback regulation, output OVP, and input voltage sense/UV protection, with absolute maximum range -0.3 V to VDD."
      },
      {
        "number": "2",
        "name": "SD",
        "type": "input",
        "description": "Latching fault shutdown input pin that may be connected to an external temperature sensor, with absolute maximum range -0.3 V to VDD."
      },
      {
        "number": "3",
        "name": "CS",
        "type": "input",
        "description": "Current sense input, with recommended input range 0 to 1.0 V and absolute maximum range -0.3 V to 1.5 V."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference connection for all signals; all voltages are specified with respect to GND."
      },
      {
        "number": "5",
        "name": "DRV",
        "type": "output",
        "description": "Output drive pin for the external flyback MOSFET, with high-level source resistance of 22 to 35 Ω and low-level sink resistance of 1.2 to 2.5 Ω."
      },
      {
        "number": "6",
        "name": "VDD",
        "type": "power_in",
        "description": "Bias supply input with absolute maximum of 20 V, to be decoupled with a 1-µF ceramic bypass capacitor connected directly across pins 6-4."
      },
      {
        "number": "8",
        "name": "HV",
        "type": "power_in",
        "description": "High-voltage connection to the internal start-up current source, with absolute maximum of 700 V and an external 200 kΩ (180 to 220 kΩ) resistor on the HV pin."
      }
    ],
    "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 7 is not listed in the pin table (pins 1-6 and 8 only) for the 7-pin SOIC D package, so no pin 7"
        ],
        "pages_sent": 19,
        "cost_usd": 0.0278,
        "at": "2026-11-06T00:03:15"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/ucc28633.pdf",
        "pages": 86,
        "sha256": "ed73cdcfa09610b8",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 7,
        "described": 7,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ucc28633dr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.4,
          4.9,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "4c9435ffd3683a4ae45655e397c25900eda4f6782a526780f4f7b7b99a32dca7",
        "checked": "2026-11-06",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ucc28633dr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.4,
          4.9,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "e2225c4a01f7ba1df959d4b78ffd0ce58dda0a32fd056b08c41480e30718214d",
        "checked": "2026-11-06",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOIC-7",
      "Category": "Power Management (PMIC)",
      "Pins": "7"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "ed73cdcfa09610b84edc632c2f993d8c4d9910ac2b892ef2061b8d8d50559254",
      "rows": [
        {
          "name": "Start-up pin voltage HV",
          "symbol": "HV",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 700,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Bias supply voltage",
          "symbol": "VDD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Current sense input voltage",
          "symbol": "CS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 1.5,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "All other input pins VSENSE",
          "symbol": "VSENSE",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "max is VDD",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "All other input pins SD",
          "symbol": "SD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "max is VDD",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature range",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Lead temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "CS input",
          "symbol": "CS",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 1,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "All other inputs (except HV, CS)",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "max is VDD",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "SD pin external capacitance",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "nF",
          "min": 0,
          "typ": null,
          "max": 1,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "External resistor on HV pin, see Figure 15",
          "symbol": "RHV",
          "kind": "recommended_operating",
          "unit": "kΩ",
          "min": 180,
          "typ": 200,
          "max": 220,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "External pull-up resistor on VSENSE pin, see Figure 21",
          "symbol": "RP",
          "kind": "recommended_operating",
          "unit": "kΩ",
          "min": 3.8,
          "typ": 3.9,
          "max": 4,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Start-up current VDD pin short-circuit charging current",
          "symbol": "IVDD0",
          "kind": "electrical",
          "unit": "mA",
          "min": 0.6,
          "typ": 0.9,
          "max": 1.2,
          "conditions": "VDD = 0.2 V, VHV = 100 V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "VDD pin final charging current",
          "symbol": "IVDD1",
          "kind": "electrical",
          "unit": "mA",
          "min": 1.1,
          "typ": 4,
          "max": 7.6,
          "conditions": "VDD = 11.9 V, VHV = 100 V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "HV current source leakage current",
          "symbol": "ILEAK",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.1,
          "max": 0.5,
          "conditions": "VDD = 18 V, VHV = 100 V HV, current source off, TA = 25°C",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "VDD start-up voltage",
          "symbol": "VDD(start)",
          "kind": "electrical",
          "unit": "V",
          "min": 13,
          "typ": 14.75,
          "max": 16.5,
          "conditions": "VDD increasing",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "VDD minimum operating voltage after start-up",
          "symbol": "VDD(stop)",
          "kind": "electrical",
          "unit": "V",
          "min": 7.3,
          "typ": 8,
          "max": 8.5,
          "conditions": "VDD decreasing after start-up",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "VDD start – VDD stop level",
          "symbol": "VDD(hyst)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 6.5,
          "max": null,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "VDD reset restart level",
          "symbol": "VDD(reset)",
          "kind": "electrical",
          "unit": "V",
          "min": 3.5,
          "typ": 5,
          "max": 6.5,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "VDD over-voltage protection level",
          "symbol": "VDD(ovp)",
          "kind": "electrical",
          "unit": "V",
          "min": 16.5,
          "typ": 17.5,
          "max": 18.3,
          "conditions": "VDD increasing after start-up, UCC28630, UCC28631, UCC28632, UCC28633",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Supply current during normal operation",
          "symbol": "IDD(run)",
          "kind": "electrical",
          "unit": "mA",
          "min": 6,
          "typ": 9,
          "max": 13,
          "conditions": "VSENSE = 0.45 V, CS = 0 V; CLOAD = 700 pF on DRV",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Supply current during sleep mode, between switching pulses",
          "symbol": "IDD(sleep)",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 90,
          "max": 110,
          "conditions": "VSENSE = 8.0 V, VCS = 1.0 V, light-load mode at 200 Hz, TA = 25°C",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Maximum switching frequency",
          "symbol": "fSW(max)",
          "kind": "electrical",
          "unit": "kHz",
          "min": 110,
          "typ": 120,
          "max": 130,
          "conditions": "VSENSE = 0.45 V, VCS = 0 V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Minimum switching frequency",
          "symbol": "fSW(min)",
          "kind": "electrical",
          "unit": "kHz",
          "min": 0.18,
          "typ": 0.2,
          "max": 0.22,
          "conditions": "VSENSE = 8.0 V, VCS = 1.0 V, light-load mode",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Maximum Duty Cycle",
          "symbol": "DMAX",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 70,
          "conditions": "VSENSE = 0.45 V, VCS = 0 V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Minimum On time",
          "symbol": "tON(min)",
          "kind": "electrical",
          "unit": "ns",
          "min": 550,
          "typ": 600,
          "max": 650,
          "conditions": "VSENSE = 8.0 V, VCS = 1.0 V, light-load mode",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Frequency dither range",
          "symbol": "fSW(dith)",
          "kind": "tolerance",
          "unit": "%",
          "min": -6.7,
          "typ": null,
          "max": 6.7,
          "conditions": "Except UCC28632",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Dither repetition period",
          "symbol": "tDITH",
          "kind": "timing",
          "unit": "ms",
          "min": null,
          "typ": 6,
          "max": null,
          "conditions": "Except UCC28632",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Internal pull-up current source",
          "symbol": "IPULLUP",
          "kind": "electrical",
          "unit": "µA",
          "min": 185,
          "typ": 210,
          "max": 235,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Fault ok level (rising), UCC28633",
          "symbol": "VTRIP(rise)",
          "kind": "electrical",
          "unit": "V",
          "min": 3.2,
          "typ": 3.5,
          "max": 3.8,
          "conditions": "UCC28630, UCC28631, UCC28632, UCC28633",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Fault trip level (falling)",
          "symbol": "VTRIP(fall)",
          "kind": "electrical",
          "unit": "V",
          "min": 1.7,
          "typ": 2,
          "max": 2.3,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "VTRIP hysteresis",
          "symbol": "VTRIP(hyst)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.5,
          "max": null,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Wake delay time",
          "symbol": "tWAKE",
          "kind": "timing",
          "unit": "µs",
          "min": null,
          "typ": 10,
          "max": null,
          "conditions": "Delay to first DRV pulse",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Internal output voltage sense reference level",
          "symbol": "VOUT(ref)",
          "kind": "electrical",
          "unit": "V",
          "min": 7.425,
          "typ": 7.5,
          "max": 7.575,
          "conditions": "Required positive voltage at VSENSE pin during off-time (at 25°C)",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Vsense sample delay for VOUT",
          "symbol": "tOUT(smp)",
          "kind": "timing",
          "unit": "µs",
          "min": null,
          "typ": 1.7,
          "max": null,
          "conditions": "Measured w.r.t. DRV falling edge",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Peak CS pin voltage level (maximum)",
          "symbol": "VCS(max)",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 800,
          "max": null,
          "conditions": "At maximum modulator demand",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Peak CS pin voltage level (minimum)",
          "symbol": "VCS(min)",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 172,
          "max": null,
          "conditions": "At minimum modulator demand",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Slope compensation ramp",
          "symbol": "VSLOPE",
          "kind": "electrical",
          "unit": "mV/µs",
          "min": null,
          "typ": 30,
          "max": null,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Thermal protection shutdown temperature",
          "symbol": "TEMPTRIP",
          "kind": "thermal",
          "unit": "°C",
          "min": null,
          "typ": 125,
          "max": null,
          "conditions": "Default internal setting, latch-off protection",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Thermal protection hysteresis",
          "symbol": "TEMPHYST",
          "kind": "thermal",
          "unit": "°C",
          "min": null,
          "typ": 10,
          "max": null,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "High level source resistance",
          "symbol": "ROH",
          "kind": "electrical",
          "unit": "Ω",
          "min": 22,
          "typ": 35,
          "max": null,
          "conditions": "IOH = 100 mA",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Low level sink resistance",
          "symbol": "ROL",
          "kind": "electrical",
          "unit": "Ω",
          "min": 1.2,
          "typ": 2.5,
          "max": null,
          "conditions": "IOL = –100 mA",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-ambient thermal resistance",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 128.5,
          "max": null,
          "conditions": "UCC28633 D 7 pins",
          "source_page": 7,
          "source": "datasheet"
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