LHR3040AFAA

{
  "schema_version": 1,
  "type": "component",
  "slug": "lhr3040afaa",
  "title": "LHR3040AFAA",
  "brief": "Legendsemi Voltage Reference, SOP-8. 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)",
    "lhr3040afaa",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LHR3040AFAA",
    "manufacturer": "Legendsemi",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Reference",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603346729685168128",
    "parts": {
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      "model_3d_step_plain": "lhr3040afaa.step",
      "lbr": "lhr3040afaa.lbr"
    },
    "distributor_links": {
      "lcsc": "C18213063"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T11:29:49Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "DNC",
        "type": "unconnected",
        "description": "Do not connect; this pin must be left unconnected."
      },
      {
        "number": "2",
        "name": "VIN",
        "type": "power_in",
        "description": "Supply voltage input, which must be at least VOUT + 0.2 V (4.296 V for LHR3040) and no more than 18 V, with a 2.7 V minimum for VOUT ≤ 2.5 V variants."
      },
      {
        "number": "3",
        "name": "TEMP",
        "type": "output",
        "description": "Temperature monitor output that gives a temperature-dependent voltage of 668 mV at 25 °C with 1.91 mV/°C sensitivity; it has high output impedance and should be buffered if loaded."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for the device."
      },
      {
        "number": "5",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; the pin may be left unconnected."
      },
      {
        "number": "6",
        "name": "VOUT",
        "type": "power_out",
        "description": "Buffered reference voltage output (4.096 V for LHR3040), rated for ±10 mA load current and requiring a 1 µF to 50 µF output capacitor from VOUT to GND."
      },
      {
        "number": "7",
        "name": "DNC",
        "type": "unconnected",
        "description": "Do not connect; this pin must be left unconnected."
      },
      {
        "number": "8",
        "name": "DNC",
        "type": "unconnected",
        "description": "Do not connect; this pin must be left unconnected."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
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        "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: The pin-function table (Table 1) and the pin-number figure are taken from the SOP8L/MSOP8L shared se; Pin 6 (VOUT) and pin 2 (VIN) descriptions combine statements from several sections (absolute max, re"
        ],
        "pages_sent": 14,
        "cost_usd": 0.0468,
        "at": "2026-10-18T11:27:38"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603346729685168128",
        "pages": 14,
        "sha256": "a5ef983cd4f79fdb",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
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  "metadata": {
    "specs": {
      "Manufacturer": "Legendsemi",
      "Package": "SOP-8",
      "Category": "Power Management (PMIC)",
      "Pins": "8"
    },
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          "conditions": "",
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        {
          "name": "输出对地短路",
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          "unit": "mA",
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        {
          "name": "工作温度",
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          "unit": "°C",
          "min": -55,
          "typ": null,
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          "conditions": "",
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        },
        {
          "name": "结温（TJ 最大值）",
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        {
          "name": "贮存温度",
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        {
          "name": "静电放电 人体放电模式（HBM）",
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        {
          "name": "静电放电 充电器件模式（CDM）",
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        {
          "name": "输入电压 VIN（建议工作条件）",
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        },
        {
          "name": "输出电流 IOUT",
          "symbol": "IOUT",
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          "unit": "mA",
          "min": -10,
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          "conditions": "",
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        },
        {
          "name": "输出电压温漂 高等级",
          "symbol": "δVOUT/dT",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": null,
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        {
          "name": "线性调整率（温度范围）",
          "symbol": "δVO(δVI)",
          "kind": "voltage_coefficient",
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          "min": null,
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          "source_page": 6,
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        {
          "name": "负载调整（温度范围）",
          "symbol": "δVO(δIL)",
          "kind": "electrical",
          "unit": "ppm/mA",
          "min": null,
          "typ": null,
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          "conditions": "–10mA < ILOAD < 10mA, VIN = VOUT + 0.75V, TA = –40°C 至 125°C",
          "source_page": 6,
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        },
        {
          "name": "短路电流",
          "symbol": "ISC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 25,
          "max": null,
          "conditions": "VOUT = 0",
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          "name": "热迟滞 高等级 SOP-8 周期 1",
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        {
          "name": "热迟滞 高等级 SOP-8 周期 2",
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          "name": "长期稳定性 SOP-8",
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          "kind": "electrical",
          "unit": "ppm/1000 小时",
          "min": null,
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          "name": "长期稳定性 SOP-8",
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        {
          "name": "电源电压 Vs",
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        {
          "name": "静态电流",
          "symbol": "",
          "kind": "electrical",
          "unit": "mA",
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          "max": 1,
          "conditions": "",
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        {
          "name": "静态电流（温度范围）",
          "symbol": "",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
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          "conditions": "TA = –40°C 至 125°C",
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        {
          "name": "指定的温度范围",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
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        },
        {
          "name": "输出电压 VOUT（LHR3040）",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 4.096,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "输出电压噪声",
          "symbol": "",
          "kind": "electrical",
          "unit": "µVPP/V",
          "min": null,
          "typ": 1.5,
          "max": null,
          "conditions": "F=0.1Hz 至 10Hz",
          "source_page": 5,
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        },
        {
          "name": "TEMP 引脚电压输出",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 668,
          "max": null,
          "conditions": "TA=25°C",
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          "source": "datasheet"
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        {
          "name": "TEMP 引脚温度敏感性",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV/°C",
          "min": null,
          "typ": 1.91,
          "max": null,
          "conditions": "TA = -40°C 至 125°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "结至环境热阻 RθJA（SOP，DGK）",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 160.9,
          "max": null,
          "conditions": "DGK (SOP), 8 pin",
          "source_page": 5,
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        {
          "name": "结至外壳（顶部）热阻 RθJC(top)（SOP，DGK）",
          "symbol": "RθJC(top)",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 53.9,
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        {
          "name": "结至电路板热阻 RθJB（SOP，DGK）",
          "symbol": "RθJB",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 82.3,
          "max": null,
          "conditions": "DGK (SOP), 8 pin",
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        {
          "name": "结至顶部特征参数 ψJT（SOP，DGK）",
          "symbol": "ψJT",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 5.1,
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          "conditions": "DGK (SOP), 8 pin",
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        {
          "name": "结至电路板特征参数 ψJB（SOP，DGK）",
          "symbol": "ψJB",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 80.7,
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          "conditions": "DGK (SOP), 8 pin",
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      ]
    }
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  "author": {
    "name": "Ray",
    "email": "[email protected]"
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