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Ray tlv431aqdbvrq1: specified limits as data (metadata.characteristics, 19 rows from the datasheet) fbe606b 26d ago
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  "title": "TLV431AQDBVRQ1",
  "brief": "Texas Instruments Voltage Reference, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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    "mpn": "TLV431AQDBVRQ1",
    "manufacturer": "Texas Instruments",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Reference",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tlv431a-q1",
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    "distributor_links": {
      "lcsc": "C402864",
      "digikey": "296-TLV431AQDBVRQ1TR-ND",
      "mouser": "595-TLV431AQDBVRQ1"
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      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-TLV431AQDBVRQ1TR-ND",
        "status": "found",
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    "pins": [
      {
        "number": "1",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; this pin is not used electrically."
      },
      {
        "number": "2",
        "name": "*",
        "type": "passive",
        "description": "Substrate connection; the datasheet requires this pin to be connected to ANODE or left open."
      },
      {
        "number": "3",
        "name": "CATHODE",
        "type": "bidirectional",
        "description": "Shunt current/voltage input; the recommended cathode current is 0.1 mA to 15 mA with cathode voltage from VREF to 6 V, and the absolute maximum cathode voltage is 7 V."
      },
      {
        "number": "4",
        "name": "REF",
        "type": "input",
        "description": "Reference input threshold relative to the common ANODE; it requires Iref of at least 0.5 µA and must not be left floating."
      },
      {
        "number": "5",
        "name": "ANODE",
        "type": "power_in",
        "description": "Common pin, normally grounded; all voltages are referenced to the anode terminal."
      }
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        "guard_notes": [
          "extractor flagged: The datasheet lists ANODE as type O (output), but it is the common pin usually tied to ground, so it; The datasheet lists CATHODE as I/O; mapped to KiCad bidirectional.; Pin 2 is labelled '*' (substrate) in the datasheet and marked as type I; typed passive here since it"
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        "cost_usd": 0.1141,
        "at": "2026-10-10T17:39:03"
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        "pages": 35,
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      "pins": {
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        "described": 5,
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        "centre_offset_mm": 0,
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  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOT-23-5",
      "Category": "Power Management (PMIC)",
      "Pins": "5"
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    "characteristics": {
      "version": 1,
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      "rows": [
        {
          "name": "Cathode voltage (absolute maximum)",
          "symbol": "VKA",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 7,
          "conditions": "Referenced to anode",
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        {
          "name": "Continuous cathode current range (absolute maximum)",
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          "typ": null,
          "max": 20,
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          "name": "Reference current range (absolute maximum)",
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          "unit": "mA",
          "min": -0.05,
          "typ": null,
          "max": 3,
          "conditions": "",
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        {
          "name": "Operating virtual junction temperature (absolute maximum)",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range (absolute maximum)",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Cathode voltage (recommended operating)",
          "symbol": "VKA",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "Minimum printed as VREF",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Cathode current (recommended operating)",
          "symbol": "IK",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": 0.1,
          "typ": null,
          "max": 15,
          "conditions": "",
          "source_page": 4,
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        },
        {
          "name": "Operating free-air temperature (recommended operating)",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "Natural ventilation, TLV431x-Q1",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Reference voltage",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 1.228,
          "typ": 1.24,
          "max": 1.252,
          "conditions": "VKA = VREF, IK = 10mA, TA = 25°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Reference voltage over full temperature range",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 1.209,
          "typ": null,
          "max": 1.271,
          "conditions": "VKA = VREF, IK = 10mA, TA = full range (-40°C to 125°C)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Reference voltage deviation over temperature range",
          "symbol": "VREF(dev)",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 11,
          "max": 31,
          "conditions": "VKA = VREF, IK = 10mA, full temperature range",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Change in reference voltage with cathode voltage ratio",
          "symbol": "ΔVREF/ΔVKA",
          "kind": "electrical",
          "unit": "mV/V",
          "min": null,
          "typ": -1.5,
          "max": -2.7,
          "conditions": "VKA = VREF to 6V, IK = 10mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Reference terminal current",
          "symbol": "Iref",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.15,
          "max": 0.5,
          "conditions": "IK = 10mA, R1 = 10kΩ, R2 = open",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Reference current deviation over temperature range",
          "symbol": "Iref(dev)",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.15,
          "max": 0.5,
          "conditions": "IK = 10mA, R1 = 10kΩ, R2 = open, full temperature range",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Minimum cathode current for regulation",
          "symbol": "IK(min)",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 55,
          "max": 100,
          "conditions": "VKA = VREF",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Off-state cathode current",
          "symbol": "IK(off)",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.001,
          "max": 0.1,
          "conditions": "VREF = 0, VKA = 6V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Dynamic impedance",
          "symbol": "|zKA|",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 0.25,
          "max": 0.4,
          "conditions": "VKA = VREF, f ≤ 1kHz, IK = 0.1mA to 15mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-ambient thermal resistance (DBV, 5-pin)",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 206,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-case (top) thermal resistance (DBV, 5-pin)",
          "symbol": "RθJC(top)",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 131,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
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