L6574D

{
  "schema_version": 1,
  "type": "component",
  "slug": "l6574d",
  "title": "L6574D",
  "brief": "STMicroelectronics Lighting Drivers & Controllers, SOIC-16. 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",
    "l6574d",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "L6574D",
    "manufacturer": "STMicroelectronics",
    "package": "SOIC-16",
    "pin_count": 16,
    "category": "LED Drivers",
    "subcategory": "Lighting Drivers & Controllers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590904973985198080",
    "parts": {
      "symbol": "l6574d.kicad_sym",
      "footprint": "l6574d.kicad_mod",
      "model_3d": "l6574d-hero.glb",
      "model_3d_plain": "l6574d.glb",
      "model_3d_step": "l6574d-etched.step",
      "model_3d_step_plain": "l6574d.step",
      "lbr": "l6574d.lbr"
    },
    "distributor_links": {
      "lcsc": "C2969998",
      "digikey": "497-15804-5-ND",
      "mouser": "511-L6574D"
    },
    "distributor_check": {
      "checked_at": "2026-10-06T16:36:21Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-15804-5-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "511-L6574D",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CPRE",
        "type": "passive",
        "description": "Preheat Timing Capacitor sets preheating and frequency shift time per relations tPRE = KPRE · CPRE and tSH = KFS · CPRE; charged to 3.5V during preheat timing and 5V in steady state."
      },
      {
        "number": "2",
        "name": "RPRE",
        "type": "passive",
        "description": "Maximum Oscillation Frequency Setting resistor to ground sets fPRE value; voltage fixed at VREF = 2V."
      },
      {
        "number": "3",
        "name": "CF",
        "type": "passive",
        "description": "Oscillator Frequency Setting capacitor along with RPRE and RIGN sets fPRE and fING frequencies; shows triangular wave in normal operation."
      },
      {
        "number": "4",
        "name": "RIGN",
        "type": "passive",
        "description": "Minimum Oscillation Frequency Setting resistor to ground sets fIGN value; voltage fixed at VREF = 2V."
      },
      {
        "number": "5",
        "name": "OPout",
        "type": "output",
        "description": "Output of the operational amplifier for feedback control loop implementation; can connect to RIGN pin through appropriate circuitry."
      },
      {
        "number": "6",
        "name": "OPin-",
        "type": "input",
        "description": "Inverting input of the operational amplifier with input bias current 0.1µA and common mode input range -0.2 to 3V."
      },
      {
        "number": "7",
        "name": "OPin+",
        "type": "input",
        "description": "Non-inverting input of the operational amplifier with input bias current 0.1µA and common mode input range -0.2 to 3V."
      },
      {
        "number": "8",
        "name": "EN1",
        "type": "input",
        "description": "Enable 1 input (active high) forces device into latched shutdown state; normal operation resumed by reducing supply below UVLO threshold then increasing, or by activating EN2 input."
      },
      {
        "number": "9",
        "name": "EN2",
        "type": "input",
        "description": "Enable 2 input (active high) restarts the preheat and ignition sequence."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference."
      },
      {
        "number": "11",
        "name": "LVG",
        "type": "output",
        "description": "Low Side Driver Output to be connected to the low side power MOSFET gate; source current 170-250mA, sink current 300-450mA."
      },
      {
        "number": "12",
        "name": "VS",
        "type": "power_in",
        "description": "Supply Voltage connected to supply filter capacitor; internally clamped at 15.6V typical; UVLO turn-on threshold 9.5-10.9V, turn-off threshold 7.3-8.7V."
      },
      {
        "number": "13",
        "name": "N.C.",
        "type": "unconnected",
        "description": "Non-connected pin providing distance between high voltage and low voltage side pins."
      },
      {
        "number": "14",
        "name": "OUT",
        "type": "output",
        "description": "High Side Driver Floating Reference to be connected close to the source of the high side power MOS or IGBT; voltage range -1 to VBOOT-VCL."
      },
      {
        "number": "15",
        "name": "HVG",
        "type": "output",
        "description": "High Side Driver Output to be connected to the high side power MOSFET gate; source current 170-250mA, sink current 300-450mA."
      },
      {
        "number": "16",
        "name": "VBOOT",
        "type": "power_out",
        "description": "Bootstrapped Supply Voltage; bootstrap capacitor connects between this pin and VS; integrated bootstrap circuit provides voltage to drive high side MOSFET; maximum voltage 618V."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin diagram shows 'RING' but PIN DESCRIPTION table lists 'RIGN'; used official table designation 'RI"
        ],
        "pages_sent": 10,
        "cost_usd": 0.1185,
        "at": "2026-10-06T16:36:05"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590904973985198080",
        "pages": 10,
        "sha256": "dbd4ac638c679f4b",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "STMicroelectronics",
      "Package": "SOIC-16",
      "Category": "LED Drivers",
      "Pins": "16"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "l6574d"
  ],
  "discovery_pitch": "L6574D (STMicroelectronics) 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",
    "l6574d.kicad_sym",
    "l6574d.kicad_mod",
    "l6574d.glb",
    "l6574d.step",
    "l6574d.lbr",
    "docs/hero.png",
    "docs/l6574d-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "l6574d-hero.glb",
    "l6574d-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}