UCD3138ARGCT

{
  "schema_version": 1,
  "type": "component",
  "slug": "ucd3138argct",
  "title": "UCD3138ARGCT",
  "brief": "Texas Instruments Monitors & Reset Circuits, VQFN-64-EP(9x9). 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 supply chip",
    "ucd3138argct",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "UCD3138ARGCT",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-64-EP(9x9)",
    "pin_count": 65,
    "category": "Power Supply Chip",
    "subcategory": "Monitors & Reset Circuits",
    "datasheet": "https://www.ti.com/cn/lit/gpn/ucd3138a",
    "parts": {
      "symbol": "ucd3138argct.kicad_sym",
      "footprint": "ucd3138argct.kicad_mod",
      "model_3d": "ucd3138argct-hero.glb",
      "model_3d_plain": "ucd3138argct.glb",
      "model_3d_step": "ucd3138argct-etched.step",
      "model_3d_step_plain": "ucd3138argct.step",
      "lbr": "ucd3138argct.lbr"
    },
    "distributor_links": {
      "lcsc": "C2657830",
      "digikey": "296-42555-2-ND",
      "mouser": "595-UCD3138ARGCT"
    },
    "distributor_check": {
      "checked_at": "2026-10-11T07:33:37Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-42555-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-UCD3138ARGCT",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground; |DGND - AGND| must not exceed 0.3 V."
      },
      {
        "number": "2",
        "name": "AD13",
        "type": "input",
        "description": "12-bit ADC channel 13, also connected to comparator E and the I-share DAC output."
      },
      {
        "number": "3",
        "name": "AD12",
        "type": "input",
        "description": "12-bit ADC channel 12."
      },
      {
        "number": "4",
        "name": "AD10",
        "type": "input",
        "description": "12-bit ADC channel 10."
      },
      {
        "number": "5",
        "name": "AD07",
        "type": "input",
        "description": "12-bit ADC channel 7, connected to comparator F and to the reference DAC output for comparator G."
      },
      {
        "number": "6",
        "name": "AD06",
        "type": "input",
        "description": "12-bit ADC channel 6, connected to comparator F and the DAC output."
      },
      {
        "number": "7",
        "name": "AD04",
        "type": "input",
        "description": "12-bit ADC channel 4, connected to comparator D and the DAC output."
      },
      {
        "number": "8",
        "name": "AD03",
        "type": "input",
        "description": "12-bit ADC channel 3, connected to comparators B and C to facilitate simple OVP and UVP connections."
      },
      {
        "number": "9",
        "name": "V33DIO",
        "type": "power_in",
        "description": "Digital I/O 3.3 V core supply; recommended range 3 V to 3.6 V."
      },
      {
        "number": "10",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "11",
        "name": "RESET",
        "type": "input",
        "description": "Device reset input, active low."
      },
      {
        "number": "12",
        "name": "ADC_EXT_TRIG",
        "type": "input",
        "description": "ADC conversion external trigger input; alternate functions are TCAP, SYNC and PWM0, and the pin can be used as GPIO."
      },
      {
        "number": "13",
        "name": "SCI_RX0",
        "type": "input",
        "description": "SCI receive 0; can be used as GPIO when the peripheral is not being used."
      },
      {
        "number": "14",
        "name": "SCI_TX0",
        "type": "output",
        "description": "SCI transmit 0; can be used as GPIO when the peripheral is not being used."
      },
      {
        "number": "15",
        "name": "PMBUS_CLK",
        "type": "bidirectional",
        "description": "PMBus clock, open drain; alternate function is SCI_TX0."
      },
      {
        "number": "16",
        "name": "PMBUS_DATA",
        "type": "bidirectional",
        "description": "PMBus data, open drain; alternate function is SCI_RX0."
      },
      {
        "number": "17",
        "name": "DPWM0A",
        "type": "output",
        "description": "DPWM 0A high-resolution output."
      },
      {
        "number": "18",
        "name": "DPWM0B",
        "type": "output",
        "description": "DPWM 0B high-resolution output."
      },
      {
        "number": "19",
        "name": "DPWM1A",
        "type": "output",
        "description": "DPWM 1A high-resolution output."
      },
      {
        "number": "20",
        "name": "DPWM1B",
        "type": "output",
        "description": "DPWM 1B high-resolution output."
      },
      {
        "number": "21",
        "name": "DPWM2A",
        "type": "output",
        "description": "DPWM 2A high-resolution output."
      },
      {
        "number": "22",
        "name": "DPWM2B",
        "type": "output",
        "description": "DPWM 2B high-resolution output."
      },
      {
        "number": "23",
        "name": "DPWM3A",
        "type": "output",
        "description": "DPWM 3A high-resolution output."
      },
      {
        "number": "24",
        "name": "DPWM3B",
        "type": "output",
        "description": "DPWM 3B high-resolution output."
      },
      {
        "number": "25",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "26",
        "name": "SYNC",
        "type": "bidirectional",
        "description": "DPWM synchronize pin; alternate functions are TCAP, ADC_EXT_TRIG, PWM0 and DTC1."
      },
      {
        "number": "27",
        "name": "PMBUS_ALERT",
        "type": "bidirectional",
        "description": "PMBus alert, open drain."
      },
      {
        "number": "28",
        "name": "PMBUS_CTRL",
        "type": "bidirectional",
        "description": "PMBus control, open drain."
      },
      {
        "number": "29",
        "name": "SCI_TX1",
        "type": "output",
        "description": "SCI transmit 1; alternate function is PMBUS_ALERT."
      },
      {
        "number": "30",
        "name": "SCI_RX1",
        "type": "input",
        "description": "SCI receive 1; alternate function is PMBUS_CTRL."
      },
      {
        "number": "31",
        "name": "PWM0",
        "type": "bidirectional",
        "description": "General-purpose PWM 0."
      },
      {
        "number": "32",
        "name": "PWM1",
        "type": "bidirectional",
        "description": "General-purpose PWM 1."
      },
      {
        "number": "33",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "34",
        "name": "INT_EXT",
        "type": "input",
        "description": "External interrupt input."
      },
      {
        "number": "35",
        "name": "FAULT0",
        "type": "input",
        "description": "External fault input 0."
      },
      {
        "number": "36",
        "name": "FAULT1",
        "type": "input",
        "description": "External fault input 1."
      },
      {
        "number": "37",
        "name": "TCK",
        "type": "input",
        "description": "JTAG TCK; alternate functions are TCAP, SYNC, PWM0 and DTC0."
      },
      {
        "number": "38",
        "name": "TDO",
        "type": "output",
        "description": "JTAG TDO; alternate functions are SCI_TX0, PMBUS_ALERT, FAULT0 and DTC1."
      },
      {
        "number": "39",
        "name": "TDI",
        "type": "input",
        "description": "JTAG TDI; alternate functions are SCI_RX0, PMBUS_CTRL, FAULT1 and DTC0."
      },
      {
        "number": "40",
        "name": "TMS",
        "type": "input",
        "description": "JTAG TMS."
      },
      {
        "number": "41",
        "name": "TCAP",
        "type": "input",
        "description": "Timer capture input."
      },
      {
        "number": "42",
        "name": "FAULT2",
        "type": "input",
        "description": "External fault input 2."
      },
      {
        "number": "43",
        "name": "FAULT3",
        "type": "input",
        "description": "External fault input 3."
      },
      {
        "number": "44",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "45",
        "name": "V33DIO",
        "type": "power_in",
        "description": "Digital I/O 3.3 V core supply; recommended range 3 V to 3.6 V."
      },
      {
        "number": "46",
        "name": "BP18",
        "type": "power_in",
        "description": "1.8 V digital power bypass; recommended range 1.6 V to 2 V with 1.8 V nominal."
      },
      {
        "number": "47",
        "name": "V33D",
        "type": "power_in",
        "description": "Digital 3.3 V core supply; recommended range 3 V to 3.6 V."
      },
      {
        "number": "48",
        "name": "AGND",
        "type": "power_in",
        "description": "Substrate analog ground."
      },
      {
        "number": "49",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "50",
        "name": "EAP0",
        "type": "input",
        "description": "Channel 0 differential analog voltage positive input for the EADC."
      },
      {
        "number": "51",
        "name": "EAN0",
        "type": "input",
        "description": "Channel 0 differential analog voltage negative input for the EADC."
      },
      {
        "number": "52",
        "name": "EAP1",
        "type": "input",
        "description": "Channel 1 differential analog voltage positive input for the EADC."
      },
      {
        "number": "53",
        "name": "EAN1",
        "type": "input",
        "description": "Channel 1 differential analog voltage negative input for the EADC."
      },
      {
        "number": "54",
        "name": "EAP2",
        "type": "input",
        "description": "Channel 2 differential analog voltage positive input; recommended for peak current mode control."
      },
      {
        "number": "55",
        "name": "EAN2",
        "type": "input",
        "description": "Channel 2 differential analog voltage negative input."
      },
      {
        "number": "56",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "57",
        "name": "V33A",
        "type": "power_in",
        "description": "Analog 3.3 V supply; recommended range 3 V to 3.6 V."
      },
      {
        "number": "58",
        "name": "AD00",
        "type": "input",
        "description": "12-bit ADC channel 0, connected to a current source used for PMBus address detection."
      },
      {
        "number": "59",
        "name": "AD01",
        "type": "input",
        "description": "12-bit ADC channel 1, connected to a current source used for PMBus address detection."
      },
      {
        "number": "60",
        "name": "AD02",
        "type": "input",
        "description": "12-bit ADC channel 2, connected to comparator A and used for current sharing."
      },
      {
        "number": "61",
        "name": "AD05",
        "type": "input",
        "description": "12-bit ADC channel 5."
      },
      {
        "number": "62",
        "name": "AD08",
        "type": "input",
        "description": "12-bit ADC channel 8."
      },
      {
        "number": "63",
        "name": "AD09",
        "type": "input",
        "description": "12-bit ADC channel 9."
      },
      {
        "number": "64",
        "name": "AD11",
        "type": "input",
        "description": "12-bit ADC channel 11."
      },
      {
        "number": "65",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "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 names and functions are the PRIMARY assignments from Table 4-1 (UCD3138ARGC). Alternate function; The requested package hint is VQFN-64-EP(9x9). The datasheet names this package as 64 QFN / VQFN (RG; Both pin 9 and pin 45 are named V33DIO and pin 10 and pin 25/33/44 are DGND; the datasheet lists the",
          "exposed pad 65 added from the footprint"
        ],
        "pages_sent": 24,
        "cost_usd": 0.1605,
        "at": "2026-10-11T07:33:18"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/ucd3138a",
        "pages": 85,
        "sha256": "d8c76afb06ae469a",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 65,
        "described": 65,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ucd3138argct.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9,
          9,
          0.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "dce07a86ec3fe3ca87eebdff13827f55e036ced5518fee01f85cec4a3f56366d",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ucd3138argct-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9,
          9,
          0.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "ce62aa0dbe92519a8f3e5b5d2d7b3d73958aa1e89c37674b3e55c9d69bab9d84",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "VQFN-64-EP(9x9)",
      "Category": "Power Supply Chip",
      "Pins": "65"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ucd3138argct"
  ],
  "discovery_pitch": "UCD3138ARGCT (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": [
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    "ucd3138argct.lbr",
    "docs/hero.png",
    "docs/ucd3138argct-datasheet.pdf",
    "viewers/symbol.html",
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    "public": true
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}