UCC21750QDWQ1

{
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  "type": "component",
  "slug": "ucc21750qdwq1",
  "title": "UCC21750QDWQ1",
  "brief": "Texas Instruments Gate Drive ICs, SOIC-16-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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    "power supply chip",
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  "component": {
    "mpn": "UCC21750QDWQ1",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-16-300mil",
    "pin_count": 16,
    "category": "Power Supply Chip",
    "subcategory": "Gate Drive ICs",
    "datasheet": "https://www.ti.com/cn/lit/gpn/ucc21750-q1",
    "parts": {
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      "lbr": "ucc21750qdwq1.lbr"
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    "distributor_links": {
      "lcsc": "C2865440"
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    "distributor_check": {
      "checked_at": "2026-10-22T23:09:32Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 669 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "AIN",
        "type": "input",
        "description": "Isolated analog sensing input (0.6 V to 4.5 V referenced to COM recommended); parallel a small capacitor to COM for better noise immunity and tie to COM if unused."
      },
      {
        "number": "2",
        "name": "DESAT",
        "type": "input",
        "description": "Desaturation current protection input; tie to COM if unused."
      },
      {
        "number": "3",
        "name": "COM",
        "type": "power_in",
        "description": "Common ground reference on the output side, connected to the emitter pin for an IGBT or the source pin for a SiC MOSFET."
      },
      {
        "number": "4",
        "name": "OUTH",
        "type": "output",
        "description": "Gate driver output pull-up."
      },
      {
        "number": "5",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply rail for gate drive voltage (13 V to 33 V referenced to COM); bypass with a >10-µF capacitor to COM placed close to the pin."
      },
      {
        "number": "6",
        "name": "OUTL",
        "type": "output",
        "description": "Gate driver output pull-down."
      },
      {
        "number": "7",
        "name": "CLMPI",
        "type": "input",
        "description": "Internal active Miller clamp input, connected directly to the gate of the power transistor; leave floating or tie to VEE if unused."
      },
      {
        "number": "8",
        "name": "VEE",
        "type": "power_in",
        "description": "Negative supply rail for gate drive voltage; bypass with a >10-µF capacitor to COM placed close to the pin."
      },
      {
        "number": "9",
        "name": "GND",
        "type": "power_in",
        "description": "Input power supply and logic ground reference."
      },
      {
        "number": "10",
        "name": "IN+",
        "type": "input",
        "description": "Non-inverting gate driver control input; tie to VCC if unused."
      },
      {
        "number": "11",
        "name": "IN–",
        "type": "input",
        "description": "Inverting gate driver control input; tie to GND if unused."
      },
      {
        "number": "12",
        "name": "RDY",
        "type": "output",
        "description": "Open-drain power-good output for VCC-GND and VDD-COM that can be paralleled with other RDY signals."
      },
      {
        "number": "13",
        "name": "FLT",
        "type": "output",
        "description": "Active-low open-drain fault alarm output upon over current or short circuit that can be paralleled with other faults."
      },
      {
        "number": "14",
        "name": "RST/EN",
        "type": "input",
        "description": "Enable/shutdown of the output side (low causes regular turn-off) and resets the DESAT fault on FLT when held low for more than 1000 ns, with FLT reset at the rising edge."
      },
      {
        "number": "15",
        "name": "VCC",
        "type": "power_in",
        "description": "Input power supply from 3 V to 5.5 V; bypass with a >1-µF capacitor to GND placed close to the pin."
      },
      {
        "number": "16",
        "name": "APWM",
        "type": "output",
        "description": "Isolated analog sensing PWM output; leave floating if unused."
      }
    ],
    "provenance": {
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        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: UCC21750QDWQ1 (non-tape-and-reel) is listed as Obsolete in the package addendum; it is the DW SOIC-1"
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        "cost_usd": 0.1114,
        "at": "2026-10-22T23:09:20"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/ucc21750-q1",
        "pages": 57,
        "sha256": "0bce5c031890cf7b",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
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        "refuses_to_fabricate": true
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  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOIC-16-300mil",
      "Category": "Power Supply Chip",
      "Pins": "16"
    },
    "characteristics": {
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      "source": "datasheet",
      "datasheet_sha256": "0bce5c031890cf7bf0f319eda9070f13d1a95f3f6c0b25b79ed420721ea793bc",
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          "conditions": "VCC – GND",
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          "name": "VDD supply voltage",
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        {
          "name": "VEE supply voltage",
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        {
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        {
          "name": "Junction temperature range (abs max)",
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          "kind": "absolute_maximum",
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          "min": -40,
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        {
          "name": "Storage temperature",
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        {
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          "unit": "V",
          "min": -4000,
          "typ": null,
          "max": 4000,
          "conditions": "HBM per AEC Q100-002",
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        {
          "name": "CDM ESD",
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          "kind": "absolute_maximum",
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          "min": -1500,
          "typ": null,
          "max": 1500,
          "conditions": "CDM per AEC Q100-011",
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        {
          "name": "VCC supply voltage (operating)",
          "symbol": "VCC",
          "kind": "recommended_operating",
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          "typ": null,
          "max": 5.5,
          "conditions": "VCC–GND",
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          "name": "VDD supply voltage (operating)",
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          "kind": "recommended_operating",
          "unit": "V",
          "min": 13,
          "typ": null,
          "max": 33,
          "conditions": "VDD–COM",
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        {
          "name": "Max output supply (operating)",
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          "kind": "recommended_operating",
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          "min": null,
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          "conditions": "VDD–VEE",
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        {
          "name": "Input high level voltage",
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          "kind": "recommended_operating",
          "unit": "V",
          "min": 0.7,
          "typ": null,
          "max": 1,
          "conditions": "IN+, IN–, RST/EN; 0.7×VCC to VCC (factors of VCC)",
          "source_page": 6,
          "source": "datasheet"
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        {
          "name": "Input low level voltage",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 0.3,
          "conditions": "IN+, IN–, RST/EN; 0 to 0.3×VCC (factor of VCC)",
          "source_page": 6,
          "source": "datasheet"
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        {
          "name": "AIN voltage",
          "symbol": "AIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0.6,
          "typ": null,
          "max": 4.5,
          "conditions": "Reference to COM",
          "source_page": 6,
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        {
          "name": "Minimum RST/EN fault reset pulse width",
          "symbol": "tRST/EN",
          "kind": "recommended_operating",
          "unit": "ns",
          "min": 800,
          "typ": null,
          "max": null,
          "conditions": "",
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        {
          "name": "Ambient temperature",
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          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
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        {
          "name": "Junction temperature",
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          "kind": "recommended_operating",
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          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 6,
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        {
          "name": "Junction-to-ambient thermal resistance",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 68.3,
          "max": null,
          "conditions": "DW (SOIC) 16 pins",
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        {
          "name": "Junction-to-case (top) thermal resistance",
          "symbol": "RθJC(top)",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 27.5,
          "max": null,
          "conditions": "",
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        {
          "name": "Junction-to-board thermal resistance",
          "symbol": "RθJB",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 32.9,
          "max": null,
          "conditions": "",
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        },
        {
          "name": "VCC UVLO rising threshold",
          "symbol": "VVCC_ON",
          "kind": "electrical",
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          "min": 2.55,
          "typ": 2.7,
          "max": 2.85,
          "conditions": "VCC–GND",
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        {
          "name": "VCC UVLO falling threshold",
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          "kind": "electrical",
          "unit": "V",
          "min": 2.35,
          "typ": 2.5,
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          "conditions": "",
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        {
          "name": "VCC UVLO on delay to output high",
          "symbol": "tVCC+ to OUT",
          "kind": "electrical",
          "unit": "µs",
          "min": 28,
          "typ": 37.8,
          "max": 50,
          "conditions": "IN+ = VCC, IN– = GND",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "VCC UVLO off delay to output low",
          "symbol": "tVCC– to OUT",
          "kind": "electrical",
          "unit": "µs",
          "min": 5,
          "typ": 10,
          "max": 15,
          "conditions": "IN+ = VCC, IN– = GND",
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        {
          "name": "VCC UVLO on delay to RDY high",
          "symbol": "tVCC+ to RDY",
          "kind": "electrical",
          "unit": "µs",
          "min": 30,
          "typ": 37.8,
          "max": 50,
          "conditions": "RST/EN = VCC",
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        {
          "name": "VCC UVLO off delay to RDY low",
          "symbol": "tVCC– to RDY",
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          "min": 5,
          "typ": 10,
          "max": 15,
          "conditions": "RST/EN = VCC",
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        {
          "name": "VDD UVLO rising threshold",
          "symbol": "VVDD_ON",
          "kind": "electrical",
          "unit": "V",
          "min": 10.5,
          "typ": 12,
          "max": 12.8,
          "conditions": "VDD–COM",
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        {
          "name": "VDD UVLO falling threshold",
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          "kind": "electrical",
          "unit": "V",
          "min": 9.9,
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          "max": 11.8,
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        {
          "name": "VDD UVLO on delay to output high",
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          "kind": "electrical",
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          "min": 2,
          "typ": 5,
          "max": 8,
          "conditions": "IN+ = VCC, IN– = GND",
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        {
          "name": "VDD UVLO off delay to output low",
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          "conditions": "IN+ = VCC, IN– = GND",
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        {
          "name": "VDD UVLO on delay to RDY high",
          "symbol": "tVDD+ to RDY",
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          "conditions": "RST/EN = FLT=High",
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          "name": "VDD UVLO off delay to RDY low",
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          "kind": "electrical",
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          "max": 4,
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          "max": 5.9,
          "conditions": "OUT(H) = High, fS = 0Hz, AIN = 2 V",
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          "name": "VDD quiescent current, OUT low",
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          "kind": "electrical",
          "unit": "mA",
          "min": 3.1,
          "typ": 3.7,
          "max": 5.3,
          "conditions": "OUT(L) = Low, fS = 0Hz, AIN = 2 V",
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        {
          "name": "Input high threshold",
          "symbol": "VINH",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.85,
          "max": 2.31,
          "conditions": "VCC = 3.3 V",
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          "source": "datasheet"
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        {
          "name": "Input low threshold",
          "symbol": "VINL",
          "kind": "electrical",
          "unit": "V",
          "min": 0.99,
          "typ": 1.52,
          "max": null,
          "conditions": "VCC = 3.3 V",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input threshold hysteresis",
          "symbol": "VINHYS",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.33,
          "max": null,
          "conditions": "VCC = 3.3 V",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input high level leakage current",
          "symbol": "IIH",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 90,
          "max": null,
          "conditions": "VIN = VCC",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input low level leakage current",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": -90,
          "max": null,
          "conditions": "VIN = GND",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input pull-down resistance",
          "symbol": "RIND",
          "kind": "electrical",
          "unit": "kΩ",
          "min": null,
          "typ": 55,
          "max": null,
          "conditions": "see Detailed Description",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input pull-up resistance",
          "symbol": "RINU",
          "kind": "electrical",
          "unit": "kΩ",
          "min": null,
          "typ": 55,
          "max": null,
          "conditions": "see Detailed Description",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input deglitch filter time",
          "symbol": "TINFIL",
          "kind": "electrical",
          "unit": "ns",
          "min": 28,
          "typ": 40,
          "max": 60,
          "conditions": "fS = 50 kHz",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Deglitch filter time to reset FLT",
          "symbol": "TRSTFIL",
          "kind": "electrical",
          "unit": "ns",
          "min": 400,
          "typ": 650,
          "max": 800,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
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