COS4427DT

{
  "slug": "cos4427dt",
  "version": "0.1.0",
  "type": "component",
  "description": "COSINE Gate Drive ICs, DIP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power supply chip",
    "cos4427dt",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cos4427dt.kicad_sym",
    "cos4427dt.kicad_mod",
    "cos4427dt.glb",
    "cos4427dt.step",
    "cos4427dt.lbr",
    "docs/hero.png",
    "docs/cos4427dt-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cos4427dt-hero.glb",
    "cos4427dt-hero.overlay.json",
    "cos4427dt-etched.glb"
  ],
  "component": {
    "mpn": "COS4427DT",
    "manufacturer": "COSINE",
    "package": "DIP-8",
    "pin_count": 8,
    "category": "Power Supply Chip",
    "subcategory": "Gate Drive ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/b441978f16947b2e31ed8128c3682e52.pdf",
    "parts": {
      "symbol": "cos4427dt.kicad_sym",
      "footprint": "cos4427dt.kicad_mod",
      "model_3d": "cos4427dt-hero.glb",
      "model_3d_plain": "cos4427dt-etched.glb",
      "model_3d_step": "cos4427dt-etched.step",
      "model_3d_step_plain": "cos4427dt.step",
      "lbr": "cos4427dt.lbr"
    },
    "distributor_links": {
      "lcsc": "C5185473"
    },
    "distributor_check": {
      "checked_at": "2026-10-30T22:56:15Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection; this pin is not internally connected on the COS4427."
      },
      {
        "number": "2",
        "name": "IN A",
        "type": "input",
        "description": "MOSFET driver input A is high-impedance and TTL/CMOS compatible, with 300 mV of hysteresis between its high and low thresholds to prevent output glitching on slow edges."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Ground is the device return pin and must have a low-impedance connection to the bias supply return, since high peak current flows out of it when the capacitive load discharges."
      },
      {
        "number": "4",
        "name": "In B",
        "type": "input",
        "description": "MOSFET driver input B is high-impedance and TTL/CMOS compatible, with 300 mV of hysteresis between its high and low thresholds to prevent output glitching on slow edges."
      },
      {
        "number": "5",
        "name": "OUT B",
        "type": "output",
        "description": "Channel B output is a low-impedance CMOS push-pull output whose pull-down and pull-up devices have equal strength, giving equal rise and fall times."
      },
      {
        "number": "6",
        "name": "VDD",
        "type": "power_in",
        "description": "Bias supply for the MOSFET driver, rated 4.5V to 24V with respect to the GND pin, and should be bypassed with local ceramic capacitors (1.0 µF suggested)."
      },
      {
        "number": "7",
        "name": "OUT A",
        "type": "output",
        "description": "Channel A output is a low-impedance CMOS push-pull output whose pull-down and pull-up devices have equal strength, giving equal rise and fall times."
      },
      {
        "number": "8",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection; this pin is not internally connected on the COS4427."
      }
    ],
    "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 pin table on page 2 is shared by the SOP8, DIP8 and DFN8 variants. Pins 1 to 8 are listed for th"
        ],
        "pages_sent": 7,
        "cost_usd": 0.0109,
        "at": "2026-10-30T22:56:07"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/b441978f16947b2e31ed8128c3682e52.pdf",
        "pages": 7,
        "sha256": "91b81559744510ad",
        "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": "cos4427dt.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          9.27,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "4a377a56a8d9e9c0b86c095ef9ecc1869ac19e7f5069a3247b294250bf4f235d",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cos4427dt-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          9.27,
          6.98
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        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "9ada7437db08ef838003d6615346276c0af420f055e733aefeda839ca6b81260",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}