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Ray Set visibility: public dbfbd80 9d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "is31fl3218-qfls2-tr",
  "title": "IS31FL3218-QFLS2-TR",
  "brief": "ISSI Integrated Silicon Solution LED Drivers, QFN-24-EP(4x4). 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",
    "led drivers",
    "is31fl3218-qfls2-tr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "IS31FL3218-QFLS2-TR",
    "manufacturer": "ISSI Integrated Silicon Solution",
    "package": "QFN-24-EP(4x4)",
    "pin_count": 25,
    "category": "LED Drivers",
    "subcategory": "LED Drivers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590905708026552320",
    "parts": {
      "symbol": "is31fl3218-qfls2-tr.kicad_sym",
      "footprint": "is31fl3218-qfls2-tr.kicad_mod",
      "model_3d": "is31fl3218-qfls2-tr-hero.glb",
      "model_3d_plain": "is31fl3218-qfls2-tr-etched.glb",
      "model_3d_step": "is31fl3218-qfls2-tr-etched.step",
      "model_3d_step_plain": "is31fl3218-qfls2-tr.step",
      "lbr": "is31fl3218-qfls2-tr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2940546",
      "digikey": "2521-IS31FL3218-QFLS2-TR-ND",
      "mouser": "870-31FL3218QFLS2TR"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T02:55:47Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "2521-IS31FL3218-QFLS2-TR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "870-31FL3218QFLS2TR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "OUT18",
        "type": "output",
        "description": "Constant-current LED output channel 18, with current set by R_EXT (maximum 38 mA per channel) and voltage limited to -0.3 V to VCC+0.3 V."
      },
      {
        "number": "2",
        "name": "R_EXT",
        "type": "passive",
        "description": "Input terminal for the external resistor that regulates the output current; the recommended minimum R_EXT is 2 kΩ."
      },
      {
        "number": "3",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply, 2.7 V to 5.5 V (absolute maximum 6.0 V)."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "5",
        "name": "SDA",
        "type": "bidirectional",
        "description": "I2C serial data, bidirectional open-collector line that requires a pull-up resistor (typically 4.7 kΩ) and maximum clock of 400 kHz."
      },
      {
        "number": "6",
        "name": "SCL",
        "type": "input",
        "description": "I2C serial clock, unidirectional input with a maximum clock frequency of 400 kHz."
      },
      {
        "number": "7",
        "name": "OUT1",
        "type": "output",
        "description": "Constant-current LED output channel 1, with current set by R_EXT (maximum 38 mA per channel) and voltage limited to -0.3 V to VCC+0.3 V."
      },
      {
        "number": "8",
        "name": "OUT2",
        "type": "output",
        "description": "Constant-current LED output channel 2, with current set by R_EXT (maximum 38 mA per channel) and voltage limited to -0.3 V to VCC+0.3 V."
      },
      {
        "number": "9",
        "name": "OUT3",
        "type": "output",
        "description": "Constant-current LED output channel 3, with current set by R_EXT (maximum 38 mA per channel) and voltage limited to -0.3 V to VCC+0.3 V."
      },
      {
        "number": "10",
        "name": "OUT4",
        "type": "output",
        "description": "Constant-current LED output channel 4, with current set by R_EXT (maximum 38 mA per channel) and voltage limited to -0.3 V to VCC+0.3 V."
      },
      {
        "number": "11",
        "name": "OUT5",
        "type": "output",
        "description": "Constant-current LED output channel 5, with current set by R_EXT (maximum 38 mA per channel) and voltage limited to -0.3 V to VCC+0.3 V."
      },
      {
        "number": "12",
        "name": "OUT6",
        "type": "output",
        "description": "Constant-current LED output channel 6, with current set by R_EXT (maximum 38 mA per channel) and voltage limited to -0.3 V to VCC+0.3 V."
      },
      {
        "number": "13",
        "name": "OUT7",
        "type": "output",
        "description": "Constant-current LED output channel 7, with current set by R_EXT (maximum 38 mA per channel) and voltage limited to -0.3 V to VCC+0.3 V."
      },
      {
        "number": "14",
        "name": "OUT8",
        "type": "output",
        "description": "Constant-current LED output channel 8, with current set by R_EXT (maximum 38 mA per channel) and voltage limited to -0.3 V to VCC+0.3 V."
      },
      {
        "number": "15",
        "name": "OUT9",
        "type": "output",
        "description": "Constant-current LED output channel 9, with current set by R_EXT (maximum 38 mA per channel) and voltage limited to -0.3 V to VCC+0.3 V."
      },
      {
        "number": "16",
        "name": "OUT10",
        "type": "output",
        "description": "Constant-current LED output channel 10, with current set by R_EXT (maximum 38 mA per channel) and voltage limited to -0.3 V to VCC+0.3 V."
      },
      {
        "number": "17",
        "name": "OUT11",
        "type": "output",
        "description": "Constant-current LED output channel 11, with current set by R_EXT (maximum 38 mA per channel) and voltage limited to -0.3 V to VCC+0.3 V."
      },
      {
        "number": "18",
        "name": "OUT12",
        "type": "output",
        "description": "Constant-current LED output channel 12, with current set by R_EXT (maximum 38 mA per channel) and voltage limited to -0.3 V to VCC+0.3 V."
      },
      {
        "number": "19",
        "name": "OUT13",
        "type": "output",
        "description": "Constant-current LED output channel 13, with current set by R_EXT (maximum 38 mA per channel) and voltage limited to -0.3 V to VCC+0.3 V."
      },
      {
        "number": "20",
        "name": "OUT14",
        "type": "output",
        "description": "Constant-current LED output channel 14, with current set by R_EXT (maximum 38 mA per channel) and voltage limited to -0.3 V to VCC+0.3 V."
      },
      {
        "number": "21",
        "name": "OUT15",
        "type": "output",
        "description": "Constant-current LED output channel 15, with current set by R_EXT (maximum 38 mA per channel) and voltage limited to -0.3 V to VCC+0.3 V."
      },
      {
        "number": "22",
        "name": "OUT16",
        "type": "output",
        "description": "Constant-current LED output channel 16, with current set by R_EXT (maximum 38 mA per channel) and voltage limited to -0.3 V to VCC+0.3 V."
      },
      {
        "number": "23",
        "name": "OUT17",
        "type": "output",
        "description": "Constant-current LED output channel 17, with current set by R_EXT (maximum 38 mA per channel) and voltage limited to -0.3 V to VCC+0.3 V."
      },
      {
        "number": "24",
        "name": "SDB",
        "type": "input",
        "description": "Shutdown input; the chip enters hardware shutdown when this pin is pulled low."
      },
      {
        "number": "25",
        "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: The datasheet lists a 'Thermal Pad' that should be connected to GND, but it prints no pin number for; The requested package hint was QFN-24-EP(4x4). The datasheet names the package QFN-24 (4mm x 4mm) an; The datasheet gives no explicit ERC type for R_EXT. It is described as an input terminal for an exte",
          "exposed pad 25 added from the footprint"
        ],
        "pages_sent": 16,
        "cost_usd": 0.0711,
        "at": "2026-10-18T02:53:44"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590905708026552320",
        "pages": 16,
        "sha256": "373ba4d8b999c51c",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 25,
        "described": 25,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
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    "models_3d": [
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "f7d256794c4147daf24dcae0554fae18510315e565ad1e239b475be7fef80d8b",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "is31fl3218-qfls2-tr-etched.step",
        "role": "eda",
        "up": "Z",
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        "origin": "footprint origin = pad-pattern centre",
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        "sha256": "2704be2188226e82b7d703e03366c6e4196acd30d1a5718a548e282f27bbd06f",
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        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "ISSI Integrated Silicon Solution",
      "Package": "QFN-24-EP(4x4)",
      "Category": "LED Drivers",
      "Pins": "25"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "373ba4d8b999c51cdf8ce39557de2cf0939ef165cb30d16e9a4bed5b97ea8d1a",
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          "name": "ESD (HBM)",
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          "name": "ESD (CDM)",
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        {
          "name": "Maximum output current with REXT = 3.3kΩ (Figure 1 note)",
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        {
          "name": "Recommended minimum value of REXT",
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        {
          "name": "Rise time of both SDA and SCL, receiving",
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          "conditions": "Receiving (Note 3); Cb = total bus line capacitance in pF; ISINK ≤ 6mA; tR measured between 0.3×VCC and 0.7×VCC",
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        {
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        },
        {
          "name": "Quiescent power supply current",
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        {
          "name": "Logic “0” input voltage",
          "symbol": "VIL",
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          "min": null,
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          "max": null,
          "conditions": "VCC= 2.7V",
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        {
          "name": "Logic “1” input voltage",
          "symbol": "VIH",
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          "name": "Logic “0” input current",
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          "name": "Serial-Clock frequency",
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          "name": "Bus free time between a STOP and a START condition",
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        {
          "name": "Hold time (repeated) START condition",
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          "source_page": 5,
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        },
        {
          "name": "Repeated START condition setup time",
          "symbol": "tSU, STA",
          "kind": "timing",
          "unit": "μs",
          "min": null,
          "typ": 0.6,
          "max": null,
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          "source_page": 5,
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        {
          "name": "STOP condition setup time",
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          "kind": "timing",
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          "min": null,
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        {
          "name": "Data hold time",
          "symbol": "tHD, DAT",
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          "typ": 0.9,
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        {
          "name": "Data setup time",
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          "typ": 100,
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          "source_page": 5,
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        },
        {
          "name": "SCL clock low period",
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        {
          "name": "SCL clock high period",
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          "max": null,
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          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Package thermal resistance, junction to ambient (QFN)",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 29,
          "max": null,
          "conditions": "4 layer standard test PCB based on JESD 51-2A; QFN package",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
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