IR21531SPBF

{
  "slug": "ir21531spbf",
  "version": "0.1.0",
  "type": "component",
  "description": "Infineon Technologies Gate Drive ICs, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management ics",
    "ir21531spbf",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ir21531spbf.kicad_sym",
    "ir21531spbf.kicad_mod",
    "ir21531spbf.glb",
    "ir21531spbf.step",
    "ir21531spbf.lbr",
    "docs/hero.png",
    "docs/ir21531spbf-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ir21531spbf-hero.glb",
    "ir21531spbf-hero.overlay.json",
    "ir21531spbf-etched.glb"
  ],
  "component": {
    "mpn": "IR21531SPBF",
    "manufacturer": "Infineon Technologies",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Power Management ICs",
    "subcategory": "Gate Drive ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/90be6c499916650dac07f85b02910cec.pdf",
    "parts": {
      "symbol": "ir21531spbf.kicad_sym",
      "footprint": "ir21531spbf.kicad_mod",
      "model_3d": "ir21531spbf-hero.glb",
      "model_3d_plain": "ir21531spbf-etched.glb",
      "model_3d_step": "ir21531spbf-etched.step",
      "model_3d_step_plain": "ir21531spbf.step",
      "lbr": "ir21531spbf.lbr"
    },
    "distributor_links": {
      "lcsc": "C537595",
      "digikey": "IR21531SPBF-ND",
      "mouser": "942-IR21531SPBF"
    },
    "distributor_check": {
      "checked_at": "2026-10-31T09:21:55Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "IR21531SPBF-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": "942-IR21531SPBF",
        "status": "found",
        "lifecycle": "End of Life"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VCC",
        "type": "power_in",
        "description": "Logic and internal gate drive supply voltage, 10V min to VCLAMP (15.6V nominal internal zener clamp) recommended; do not drive from a low-impedance DC source above VCLAMP."
      },
      {
        "number": "2",
        "name": "RT",
        "type": "passive",
        "description": "Oscillator timing resistor input; recommended minimum RT is 10 kOhm."
      },
      {
        "number": "3",
        "name": "CT",
        "type": "passive",
        "description": "Oscillator timing capacitor input; recommended minimum CT is 330 pF and pulling it below the 2.1V typ shutdown threshold disables both outputs."
      },
      {
        "number": "4",
        "name": "COM",
        "type": "power_in",
        "description": "IC power and signal ground reference for all voltages."
      },
      {
        "number": "5",
        "name": "LO",
        "type": "output",
        "description": "Low side gate driver output, in phase with RT, swinging -0.3V to VCC + 0.3V."
      },
      {
        "number": "6",
        "name": "VS",
        "type": "power_in",
        "description": "High voltage floating supply return, steady state -3V to 600V and should not fly more than 5V below ground."
      },
      {
        "number": "7",
        "name": "HO",
        "type": "output",
        "description": "High side gate driver output, swinging VS - 0.3V to VB + 0.3V."
      },
      {
        "number": "8",
        "name": "VB",
        "type": "power_in",
        "description": "High side gate driver floating supply, VCC - 0.7V to VCLAMP recommended, 625V absolute maximum."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 9,
        "cost_usd": 0.1435,
        "at": "2026-10-31T09:21:36"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/90be6c499916650dac07f85b02910cec.pdf",
        "pages": 9,
        "sha256": "aa2e6f4ba065c24d",
        "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": "ir21531spbf.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": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ir21531spbf-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": "6d305e1043c781e9d8e98b36d9f38366fbdc92add408e706c8255da9a63dac61",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}