LM5105SD

{
  "slug": "lm5105sd",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Gate Drive ICs, WSON-10-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power supply chip",
    "lm5105sd",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm5105sd.kicad_sym",
    "lm5105sd.kicad_mod",
    "lm5105sd.glb",
    "lm5105sd.step",
    "lm5105sd.lbr",
    "docs/hero.png",
    "docs/lm5105sd-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm5105sd-hero.glb",
    "lm5105sd-hero.overlay.json"
  ],
  "component": {
    "mpn": "LM5105SD",
    "manufacturer": "Texas Instruments",
    "package": "WSON-10-EP(4x4)",
    "pin_count": 11,
    "category": "Power Supply Chip",
    "subcategory": "Gate Drive ICs",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm5105",
    "parts": {
      "symbol": "lm5105sd.kicad_sym",
      "footprint": "lm5105sd.kicad_mod",
      "model_3d": "lm5105sd-hero.glb",
      "model_3d_plain": "lm5105sd.glb",
      "model_3d_step": "lm5105sd-etched.step",
      "model_3d_step_plain": "lm5105sd.step",
      "lbr": "lm5105sd.lbr"
    },
    "distributor_links": {
      "lcsc": "C86253",
      "digikey": "LM5105SDTR-ND",
      "mouser": "926-LM5105SD"
    },
    "distributor_check": {
      "checked_at": "2026-10-10T15:59:11Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "LM5105SDTR-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": "926-LM5105SD",
        "status": "found",
        "lifecycle": "Obsolete"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive gate drive supply; decouple VDD to VSS with a low ESR/ESL capacitor placed as close to the IC as possible."
      },
      {
        "number": "2",
        "name": "HB",
        "type": "power_in",
        "description": "High-side gate driver bootstrap rail; the positive terminal of the bootstrap capacitor connects here and must be placed as close to the IC as possible."
      },
      {
        "number": "3",
        "name": "HO",
        "type": "output",
        "description": "High-side gate driver output; connect to the gate of the high-side N-MOS through a short, low-inductance path."
      },
      {
        "number": "4",
        "name": "HS",
        "type": "power_in",
        "description": "High-side MOSFET source connection; connect to the negative terminal of the bootstrap capacitor and to the source of the high-side N-MOS."
      },
      {
        "number": "5",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected."
      },
      {
        "number": "6",
        "name": "RDT",
        "type": "input",
        "description": "Dead-time programming pin; a resistor from RDT to VSS programs the turn-on delay of both high- and low-side MOSFETs and must be placed close to the IC."
      },
      {
        "number": "7",
        "name": "EN",
        "type": "input",
        "description": "Logic input for driver enable/disable with TTL-compatible threshold and hysteresis; LO and HO are held low when EN is low."
      },
      {
        "number": "8",
        "name": "IN",
        "type": "input",
        "description": "Logic input for the gate driver with TTL-compatible threshold and hysteresis; the high-side MOSFET turns on and the low-side MOSFET turns off when IN is high."
      },
      {
        "number": "9",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground return; all signals are referenced to this ground."
      },
      {
        "number": "10",
        "name": "LO",
        "type": "output",
        "description": "Low-side gate driver output; connect to the gate of the low-side N-MOS through a short, low-inductance path."
      },
      {
        "number": "11",
        "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 exposed thermal pad on the bottom of the WSON package is not a numbered pin in the datasheet pin; The datasheet labels HB and HS as type P (power) and does not give KiCad ERC classes; they are mappe; Pin numbers and names are from the page 3 Pin Configuration (DPR package, top view) and Pin Function",
          "exposed pad 11 added from the footprint"
        ],
        "pages_sent": 7,
        "cost_usd": 0.0409,
        "at": "2026-10-10T15:58:57"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm5105",
        "pages": 26,
        "sha256": "b0342a7c85bfeefb",
        "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": "lm5105sd.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.0,
          3.95,
          0.8
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "ef3c2f392fea7049285bfc942095cbd03d5bb47d74597dd80d1bc887363be656",
        "checked": "2026-10-10",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm5105sd-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.0,
          3.95,
          0.8
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "4b2867713cc390fe638c73b035df84116dcabb8a4e26b11ddc1ad708d3752aac",
        "checked": "2026-10-10",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}