L6571BD

{
  "slug": "l6571bd",
  "version": "0.1.0",
  "type": "component",
  "description": "STMicroelectronics Gate Drivers, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "motor driver ics",
    "l6571bd",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "l6571bd.kicad_sym",
    "l6571bd.kicad_mod",
    "l6571bd.glb",
    "l6571bd.step",
    "l6571bd.lbr",
    "docs/hero.png",
    "docs/l6571bd-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "l6571bd-hero.glb",
    "l6571bd-hero.overlay.json"
  ],
  "component": {
    "mpn": "L6571BD",
    "manufacturer": "STMicroelectronics",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Motor Driver ICs",
    "subcategory": "Gate Drivers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589035259556212736",
    "parts": {
      "symbol": "l6571bd.kicad_sym",
      "footprint": "l6571bd.kicad_mod",
      "model_3d": "l6571bd-hero.glb",
      "model_3d_plain": "l6571bd.glb",
      "model_3d_step": "l6571bd-etched.step",
      "model_3d_step_plain": "l6571bd.step",
      "lbr": "l6571bd.lbr"
    },
    "distributor_links": {
      "lcsc": "C1549378",
      "digikey": "497-18629-ND",
      "mouser": "511-L6571BD"
    },
    "distributor_check": {
      "checked_at": "2026-10-07T23:25:07Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-18629-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "511-L6571BD",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VS",
        "type": "power_in",
        "description": "Supply input with an internal zener clamp of 15.6 V typical (14.6 V to 16.6 V at IS = 5 mA), recommended VS range 10 V to VCL, and the circuit should not be driven from a DC low-impedance source."
      },
      {
        "number": "2",
        "name": "RF",
        "type": "output",
        "description": "Oscillator timing resistor pin, driven by a buffer that alternates between VS and GND to supply current to the external resistor RF between pins 2 and 3, and it can also drive another L6569/71 IC."
      },
      {
        "number": "3",
        "name": "CF",
        "type": "bidirectional",
        "description": "Oscillator timing capacitor pin that sets the oscillation frequency together with RF, and that can alternatively receive an external logic signal to drive the IC."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device; the internal zener clamp is connected between GND and VS."
      },
      {
        "number": "5",
        "name": "LVG",
        "type": "output",
        "description": "Low side driver output that delivers 170 mA source and 270 mA sink (typical values)."
      },
      {
        "number": "6",
        "name": "OUT",
        "type": "power_in",
        "description": "Upper driver floating reference (high side switch source output), with an absolute maximum range of -1 V to VBOOT - 18 V and a leakage of 5 µA maximum at VOUT = 562 V."
      },
      {
        "number": "7",
        "name": "HVG",
        "type": "output",
        "description": "High side driver output that delivers 170 mA source and 270 mA sink (typical values)."
      },
      {
        "number": "8",
        "name": "BOOT",
        "type": "power_in",
        "description": "Bootstrap floating upper driver supply, with a recommended maximum of 500 V and an absolute maximum of 618 V; ESD immunity on pins 6, 7 and 8 is 900 V (HBM)."
      }
    ],
    "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 covers both L6571A and L6571B and gives the SO8 ordering codes L6571AD and L6571BD (ta; Pin numbers and names are taken from Table 4 (Pin description), since the pin drawing in Figure 2 is; Pin types are inferred from the functional descriptions: RF is an output buffer, CF can be both a ti"
        ],
        "pages_sent": 12,
        "cost_usd": 0.0473,
        "at": "2026-10-07T23:24:50"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589035259556212736",
        "pages": 12,
        "sha256": "7ffa13798fc34909",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "l6571bd.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "l6571bd-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "0b2e8c814a2bbaa18994bb2cf2bb6077d7f613be8f9d0c604b0215fc74c5ebad",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}