LM3409QMYX

{
  "schema_version": 1,
  "type": "component",
  "slug": "lm3409qmyx",
  "title": "LM3409QMYX",
  "brief": "Texas Instruments LED Drivers, HVSSOP-10-EP-0.5mm. 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",
    "lm3409qmyx",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LM3409QMYX",
    "manufacturer": "Texas Instruments",
    "package": "HVSSOP-10-EP-0.5mm",
    "pin_count": 11,
    "category": "LED Drivers",
    "subcategory": "LED Drivers",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm3409-q1",
    "parts": {
      "symbol": "lm3409qmyx.kicad_sym",
      "footprint": "lm3409qmyx.kicad_mod",
      "model_3d": "lm3409qmyx-hero.glb",
      "model_3d_plain": "lm3409qmyx.glb",
      "model_3d_step": "lm3409qmyx-etched.step",
      "model_3d_step_plain": "lm3409qmyx.step",
      "lbr": "lm3409qmyx.lbr"
    },
    "distributor_links": {
      "lcsc": "C701834"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T04:13:42Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "UVLO",
        "type": "input",
        "description": "Input undervoltage lockout pin: connect to a resistor divider from VIN and GND; turn-on threshold is 1.24 V and turn-off hysteresis is provided by a 22 µA current source."
      },
      {
        "number": "2",
        "name": "IADJ",
        "type": "input",
        "description": "Analog LED current adjust: apply 0 to 1.24 V, connect a resistor to GND, or leave open to set the current sense threshold voltage (IADJ current limited to ±5 mA continuous)."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Logic-level enable and PWM dimming input: a voltage above 1.74 V enables the device, a PWM signal dims it, and a voltage below 0.5 V selects low-power shutdown."
      },
      {
        "number": "4",
        "name": "COFF",
        "type": "passive",
        "description": "Off-time programming pin: connect a resistor from VO and a capacitor to GND to set the off-time; COFF is rated -0.3 V to 4 V to GND with ±1 mA continuous current."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "System ground; connect to system ground."
      },
      {
        "number": "6",
        "name": "PGATE",
        "type": "output",
        "description": "Gate drive output: connect to the gate of the external P-channel MOSFET; VIN to PGATE is rated -0.3 V to 7 V (9.5 V maximum for 100 ns)."
      },
      {
        "number": "7",
        "name": "CSN",
        "type": "input",
        "description": "Negative current sense input: connect to the negative side of the sense resistor, with VIN to CSN limited to -0.3 V to 0.3 V."
      },
      {
        "number": "8",
        "name": "CSP",
        "type": "input",
        "description": "Positive current sense input: connect to the positive side of the sense resistor and also to VIN, with VIN to CSP limited to -0.3 V to 0.3 V."
      },
      {
        "number": "9",
        "name": "VCC",
        "type": "power_out",
        "description": "VIN-referenced linear regulator output providing P-channel MOSFET drive power: connect at least a 1 µF ceramic capacitor to VIN; VIN to VCC is rated -0.3 V to 7 V."
      },
      {
        "number": "10",
        "name": "VIN",
        "type": "power_in",
        "description": "Input voltage: connect to the input supply; for the LM3409-Q1 this is rated 6 V to 42 V."
      },
      {
        "number": "11",
        "name": "DAP",
        "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 thermal pad (exposed pad) is not given a pin number in the datasheet pin table or the package dr; The datasheet pin table covers the LM3409 family (LM3409, LM3409-Q1, LM3409HV, LM3409HV-Q1) with one; COFF is given as a passive pin because it is a timing-network connection (resistor to VO, capacitor ",
          "exposed pad 11 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint"
        ],
        "pages_sent": 8,
        "cost_usd": 0.0616,
        "at": "2026-10-08T04:13:26"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm3409-q1",
        "pages": 47,
        "sha256": "7745578a43302ee7",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 11,
        "described": 11,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "lm3409qmyx.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3,
          0.95
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "18605eed706df7bb9674107abe7aa36e0ba163a09c21a2cee6c75cfa291b7937",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm3409qmyx-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3,
          0.95
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "00133c18981461c72b7b4382193049bf5b942b92a4471d5149eb0354f1f71371",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "HVSSOP-10-EP-0.5mm",
      "Category": "LED Drivers",
      "Pins": "11"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "lm3409qmyx"
  ],
  "discovery_pitch": "LM3409QMYX (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm3409qmyx.kicad_sym",
    "lm3409qmyx.kicad_mod",
    "lm3409qmyx.glb",
    "lm3409qmyx.step",
    "lm3409qmyx.lbr",
    "docs/hero.png",
    "docs/lm3409qmyx-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm3409qmyx-hero.glb",
    "lm3409qmyx-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}