main
Ray tl4051cqdbzr: specified limits as data (metadata.characteristics, 30 rows from the datasheet) f3ac63e 17d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "tl4051cqdbzr",
  "title": "TL4051CQDBZR",
  "brief": "Texas Instruments Voltage Reference, SOT-23-3. 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)",
    "tl4051cqdbzr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "TL4051CQDBZR",
    "manufacturer": "Texas Instruments",
    "package": "SOT-23-3",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Reference",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tl4051a12",
    "parts": {
      "symbol": "tl4051cqdbzr.kicad_sym",
      "footprint": "tl4051cqdbzr.kicad_mod",
      "model_3d": "tl4051cqdbzr-hero.glb",
      "model_3d_plain": "tl4051cqdbzr.glb",
      "model_3d_step": "tl4051cqdbzr-etched.step",
      "model_3d_step_plain": "tl4051cqdbzr.step",
      "lbr": "tl4051cqdbzr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2872450",
      "digikey": "296-22728-2-ND",
      "mouser": "595-TL4051CQDBZR"
    },
    "distributor_check": {
      "checked_at": "2026-10-11T12:57:15Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-22728-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-TL4051CQDBZR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "FB",
        "type": "input",
        "description": "Feedback input of the adjustable version, connected to the external R1/R2 divider that sets VZ = VREF(1 + R2/R1), with VREF of 1.212 V typ and feedback current of 70 nA typ (130 nA max at 25°C)."
      },
      {
        "number": "2",
        "name": "CATHODE",
        "type": "passive",
        "description": "Cathode (shunt output) connected through series resistor RS to the supply, with recommended cathode current up to 12 mA, absolute maximum continuous cathode voltage 15 V, and adjustable VZ up to 10 V."
      },
      {
        "number": "3",
        "name": "ANODE",
        "type": "power_in",
        "description": "Anode, the ground/return reference of the shunt reference."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: MPN TL4051CQDBZR has no '12' suffix, so it is the adjustable version (pinout from the Adjustable DBZ",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 33,
        "cost_usd": 0.8713,
        "at": "2026-10-11T12:57:01"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tl4051a12",
        "pages": 33,
        "sha256": "739b8ac05dcb64a5",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          3,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "16964b14f93e6c778288a0c110b35f670fab733109c26f0da7dfc07cc3350040",
        "checked": "2026-10-11",
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        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOT-23-3",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "739b8ac05dcb64a5",
      "rows": [
        {
          "name": "Reverse breakdown voltage tolerance (C grade, Q, 25°C)",
          "symbol": "VREF tolerance",
          "kind": "tolerance",
          "unit": "mV",
          "min": -6,
          "typ": null,
          "max": 6,
          "conditions": "IZ = 100μA, VZ = 5V, TA = 25°C",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Reference voltage tolerance (C grade, Q, full range)",
          "symbol": "VREF tolerance",
          "kind": "tolerance",
          "unit": "mV",
          "min": -12.2,
          "typ": null,
          "max": 12.2,
          "conditions": "IZ = 100μA, VZ = 5V, full range (TA = -40°C to 125°C)",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Minimum cathode current (25°C)",
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          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 36,
          "max": 65,
          "conditions": "TA = 25°C",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Minimum cathode current (full range)",
          "symbol": "IZ,min",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 75,
          "conditions": "full range (TA = -40°C to 125°C)",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Reference voltage change with cathode current (IZ,min < IZ < 1mA, 25°C)",
          "symbol": "DVREF/DIZ",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 0.3,
          "max": 1.1,
          "conditions": "IZ,min < IZ < 1mA, TA = 25°C",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Reference voltage change with cathode current (IZ,min < IZ < 1mA, full range)",
          "symbol": "DVREF/DIZ",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "IZ,min < IZ < 1mA, full range",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Reference voltage change with cathode current (1mA < IZ < 12mA, 25°C)",
          "symbol": "DVREF/DIZ",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 0.6,
          "max": 6,
          "conditions": "1mA < IZ < 12mA, TA = 25°C",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Reference voltage change with cathode current (1mA < IZ < 12mA, full range)",
          "symbol": "DVREF/DIZ",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 8,
          "conditions": "1mA < IZ < 12mA, full range",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Reference voltage change with output voltage (line regulation, 25°C)",
          "symbol": "DVREF/DVKA",
          "kind": "voltage_coefficient",
          "unit": "mV/V",
          "min": -2.8,
          "typ": -1.69,
          "max": null,
          "conditions": "IZ = 1mA, TA = 25°C",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Reference voltage change with output voltage (line regulation, full range)",
          "symbol": "DVREF/DVKA",
          "kind": "voltage_coefficient",
          "unit": "mV/V",
          "min": -3.5,
          "typ": null,
          "max": null,
          "conditions": "IZ = 1mA, full range",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Feedback current (25°C)",
          "symbol": "IFB",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": 70,
          "max": 130,
          "conditions": "TA = 25°C",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Feedback current (full range)",
          "symbol": "IFB",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "full range (TA = -40°C to 125°C)",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Reference voltage temperature coefficient (IZ = 10mA)",
          "symbol": "αVREF",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "IZ = 10mA, VZ = 2.5V, TA = 25°C",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Reference voltage temperature coefficient (IZ = 1mA)",
          "symbol": "αVREF",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": -15,
          "typ": null,
          "max": 15,
          "conditions": "IZ = 1mA, VZ = 2.5V, TA = 25°C",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Reference voltage temperature coefficient (IZ = 100μA, 25°C)",
          "symbol": "αVREF",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": -15,
          "typ": null,
          "max": 15,
          "conditions": "IZ = 100μA, VZ = 2.5V, TA = 25°C",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Reference voltage temperature coefficient (IZ = 100μA, full range)",
          "symbol": "αVREF",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": -50,
          "typ": null,
          "max": 50,
          "conditions": "IZ = 100μA, VZ = 2.5V, full range",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Continuous cathode voltage",
          "symbol": "VZ",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 15,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Continuous cathode current",
          "symbol": "IZ",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -10,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating virtual junction temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Cathode current (recommended)",
          "symbol": "IZ",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 12,
          "conditions": "see electrical characteristics",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Reverse breakdown voltage (adjustable version, recommended)",
          "symbol": "VZ",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "adjustable version",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating ambient temperature (Q grade)",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "Q temperature grade (TL4051xQ), natural ventilation",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Reference voltage (adjustable version)",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.212,
          "max": null,
          "conditions": "IZ = 100μA, VZ = 5V, TA = 25°C",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Reverse dynamic impedance (VZ = VREF)",
          "symbol": "ZZ",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 0.3,
          "max": null,
          "conditions": "IZ = 1mA, f = 120Hz, IAC = 0.1 IZ, VZ = VREF, TA = 25°C",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Reverse dynamic impedance (VZ = 10V)",
          "symbol": "ZZ",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 2,
          "max": null,
          "conditions": "IZ = 1mA, f = 120Hz, IAC = 0.1 IZ, VZ = 10V, TA = 25°C",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Wideband noise",
          "symbol": "eN",
          "kind": "electrical",
          "unit": "μVRMS",
          "min": null,
          "typ": 20,
          "max": null,
          "conditions": "IZ = 100μA, VZ = VREF, 10Hz ≤ f ≤ 10kHz, TA = 25°C",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Long-term stability",
          "symbol": "",
          "kind": "electrical",
          "unit": "ppm",
          "min": null,
          "typ": 120,
          "max": null,
          "conditions": "t = 1000h, TA = 25°C ± 0.1°C, IZ = 100μA",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Thermal hysteresis",
          "symbol": "VHYST",
          "kind": "electrical",
          "unit": "mV/V",
          "min": null,
          "typ": 0.3,
          "max": null,
          "conditions": "ΔTA = -40°C to 125°C",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Package thermal resistance, junction to ambient (DBZ)",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 206,
          "max": null,
          "conditions": "DBZ package, JESD 51-7",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_pitch": "TL4051CQDBZR (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
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