main
Ray Set visibility: public 98f1797 8d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "sq6211bmst",
  "title": "SQ6211BMST",
  "brief": "Sequoia Microelectronics LED Drivers, SOT-23-6. 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",
    "sq6211bmst",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "SQ6211BMST",
    "manufacturer": "Sequoia Microelectronics",
    "package": "SOT-23-6",
    "pin_count": 6,
    "category": "LED Drivers",
    "subcategory": "LED Drivers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588910964506824704",
    "parts": {
      "symbol": "sq6211bmst.kicad_sym",
      "footprint": "sq6211bmst.kicad_mod",
      "model_3d": "sq6211bmst-hero.glb",
      "model_3d_plain": "sq6211bmst-etched.glb",
      "model_3d_step": "sq6211bmst-etched.step",
      "model_3d_step_plain": "sq6211bmst.step",
      "lbr": "sq6211bmst.lbr"
    },
    "distributor_links": {
      "lcsc": "C248355"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T17:37:17Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD",
        "type": "power_in",
        "description": "Supply voltage input of the chip, which needs a ceramic bypass capacitor near the pin; the recommended DC supply range is 12V to 25V, with the absolute maximum rating at 30V."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground of the chip."
      },
      {
        "number": "3",
        "name": "GATE",
        "type": "output",
        "description": "Gate driver output for the external power MOSFET switch, clamped internally to 17V (typical) and rated for a 300mA drive capability."
      },
      {
        "number": "4",
        "name": "DIM",
        "type": "input",
        "description": "Analog dimming control input whose effective linear dimming range is 0.6V to 3.0V, with the LED current turned off below 0.3V."
      },
      {
        "number": "5",
        "name": "COMP",
        "type": "passive",
        "description": "PWM loop compensation node, which connects to an RC compensation network to ground to form the closed-loop feedback control; the absolute maximum pin voltage is 7V."
      },
      {
        "number": "6",
        "name": "CS",
        "type": "input",
        "description": "LED current sensing input whose typical sensing threshold is 200mV between CS and GND, with an over-current protection threshold of about 0.8V; the absolute maximum pin voltage is 7V."
      }
    ],
    "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 Configurations' figure on page 1 is not present in the extracted text. Pin numbers and name; The Order Information section is empty in the extracted text. The package mapping relies on the Pack; The COMP pin type is not stated by the datasheet. 'passive' was chosen because it is described as a "
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        "pages_sent": 9,
        "cost_usd": 0.0373,
        "at": "2026-10-18T17:37:03"
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        "sha256": "84ff18a9af13aa91",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
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        "seat": "z = 0",
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        "sha256": "c9fe686b4d1b56927a41fa84a9bc1efb61d8a45a123a3db43bcaa05c2891d635",
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        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  "metadata": {
    "specs": {
      "Manufacturer": "Sequoia Microelectronics",
      "Package": "SOT-23-6",
      "Category": "LED Drivers",
      "Pins": "6"
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    "characteristics": {
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      "source": "datasheet",
      "datasheet_sha256": "84ff18a9af13aa914ac1bf512e4c977b2a7eaa77b24335d592f2d5a64ac87d97",
      "rows": [
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          "name": "VDD input start-up voltage",
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          "min": 17,
          "typ": 18,
          "max": 19,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VDD minimum operation voltage after start-up",
          "symbol": "VDD_MIN",
          "kind": "electrical",
          "unit": "V",
          "min": 7,
          "typ": 8,
          "max": 9,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current at operation mode",
          "symbol": "IVDD_OP",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1.5,
          "max": 2.5,
          "conditions": "After start-up, 1nF loading at GATE pin, VCOMP = 2.5V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current at protection mode",
          "symbol": "IVDD_PRO",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1.2,
          "max": 1.8,
          "conditions": "1nF loading at GATE pin, Protection (OCP, OVP, SCP, OTP) tripped",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Current sensing voltage",
          "symbol": "VCS",
          "kind": "electrical",
          "unit": "mV",
          "min": 194,
          "typ": 200,
          "max": 206,
          "conditions": "",
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        },
        {
          "name": "Switching frequency",
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          "unit": "kHz",
          "min": 42,
          "typ": 45,
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        },
        {
          "name": "Maximum duty",
          "symbol": "DMAX",
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          "unit": "%",
          "min": 80,
          "typ": 90,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Frequency variation vs. temperature",
          "symbol": "ΔfOSC_T",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "TA = −40°C to 125°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Frequency variation vs. VDD",
          "symbol": "ΔfOSC_V",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "VDD = 12V to 25V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Linear dimming range",
          "symbol": "VDIM_LD",
          "kind": "electrical",
          "unit": "V",
          "min": 0.6,
          "typ": null,
          "max": 3,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "LEDs current turn on threshold voltage",
          "symbol": "VDIM_ON",
          "kind": "electrical",
          "unit": "V",
          "min": 3,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "LEDs current turn off threshold voltage",
          "symbol": "VDIM_OFF",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.3,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Current source",
          "symbol": "IDIM",
          "kind": "electrical",
          "unit": "μA",
          "min": 270,
          "typ": 300,
          "max": 330,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "GATE pin clamp voltage",
          "symbol": "VCLAMP",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 17,
          "max": 20,
          "conditions": "VDD = 25V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Over voltage protection threshold voltage on the VDD pin",
          "symbol": "VDD_OVP",
          "kind": "electrical",
          "unit": "V",
          "min": 26,
          "typ": 28,
          "max": 30,
          "conditions": "OVP test",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "DC input supply voltage range",
          "symbol": "VDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 12,
          "typ": null,
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          "conditions": "",
          "source_page": 3,
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        },
        {
          "name": "Junction temperature range",
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          "unit": "°C",
          "min": -40,
          "typ": null,
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        {
          "name": "VDD input pin DC supply voltage",
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          "name": "DIM, COMP, CS input pin voltage",
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          "name": "GATE output pin voltage",
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          "name": "Power dissipation, SOT23-6",
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          "name": "Junction temperature",
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          "name": "Lead temperature (soldering, 5 sec.)",
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          "name": "Storage temperature range",
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          "min": -65,
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          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "ESD susceptibility HBM (Human Body Model)",
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          "kind": "absolute_maximum",
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          "source": "datasheet"
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        {
          "name": "ESD susceptibility MM (Machine Model)",
          "symbol": "",
          "kind": "absolute_maximum",
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          "conditions": "MM",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Package thermal resistance, junction-to-ambient, SOT23-6",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 333,
          "max": null,
          "conditions": "Mounted on low effective thermal conductivity test board in free air at TA = 25°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Package thermal resistance, junction-to-case, SOT23-6",
          "symbol": "θJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 106.6,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
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  "discovery_pitch": "SQ6211BMST (Sequoia Microelectronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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