COS4428SR

{
  "slug": "cos4428sr",
  "version": "0.1.0",
  "type": "component",
  "description": "COSINE Gate Drivers, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "motor driver ics",
    "cos4428sr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cos4428sr.kicad_sym",
    "cos4428sr.kicad_mod",
    "cos4428sr.glb",
    "cos4428sr.step",
    "cos4428sr.lbr",
    "docs/hero.png",
    "docs/cos4428sr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cos4428sr-hero.glb",
    "cos4428sr-hero.overlay.json",
    "cos4428sr-etched.glb"
  ],
  "component": {
    "mpn": "COS4428SR",
    "manufacturer": "COSINE",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Motor Driver ICs",
    "subcategory": "Gate Drivers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588911265058066432",
    "parts": {
      "symbol": "cos4428sr.kicad_sym",
      "footprint": "cos4428sr.kicad_mod",
      "model_3d": "cos4428sr-hero.glb",
      "model_3d_plain": "cos4428sr-etched.glb",
      "model_3d_step": "cos4428sr-etched.step",
      "model_3d_step_plain": "cos4428sr.step",
      "lbr": "cos4428sr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2685359"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T06:05:21Z",
      "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; the datasheet lists this pin as not connected."
      },
      {
        "number": "2",
        "name": "IN A",
        "type": "input",
        "description": "MOSFET driver Input A is a high-impedance, TTL/CMOS compatible input with a high threshold of 1.8 V, a low threshold of 0.7 V, 0.3 V hysteresis, and input current of ±1 µA for 0 V ≤ VIN ≤ VDD."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Ground is the device return pin and should have a low-impedance connection to the bias supply source return, since high peak current flows out of it when the capacitive load discharges; the inputs withstand negative voltages down to GND-5 V."
      },
      {
        "number": "4",
        "name": "IN B",
        "type": "input",
        "description": "MOSFET driver Input B is a high-impedance, TTL/CMOS compatible input with a high threshold of 1.8 V, a low threshold of 0.7 V, 0.3 V hysteresis, and input current of ±1 µA for 0 V ≤ VIN ≤ VDD."
      },
      {
        "number": "5",
        "name": "OUT B",
        "type": "output",
        "description": "Channel B is a low-impedance CMOS push-pull output with 2.0 Ω typical pull-up and pull-down resistance, 1.5 A peak output current and ±200 mA continuous current; on the COS4428 it is in phase with input A."
      },
      {
        "number": "6",
        "name": "VDD",
        "type": "power_in",
        "description": "Bias supply for the MOSFET driver, rated for 4.5 V to 25 V with respect to GND, and should be bypassed with local ceramic capacitors (1.0 µF suggested); the absolute maximum DC supply voltage is 26 V."
      },
      {
        "number": "7",
        "name": "OUT A",
        "type": "output",
        "description": "Channel A is a low-impedance CMOS push-pull output with 2.0 Ω typical pull-up and pull-down resistance, 1.5 A peak output current and ±200 mA continuous current; on the COS4428 it is out of phase with input A."
      },
      {
        "number": "8",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection; the datasheet lists this pin as not connected."
      }
    ],
    "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 COS4426/4427/4428 together and the COS4428SR (SOP-8) pin table is shared across; The Pin Description table lists pin 4 as 'In B'; it is shown here as 'IN B' for consistency with the; The Pin Description table includes a 'PAD' row for the exposed metal pad, which applies to the DFN-8"
        ],
        "pages_sent": 8,
        "cost_usd": 0.0256,
        "at": "2026-10-19T06:05:04"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588911265058066432",
        "pages": 8,
        "sha256": "6aa85dcb0144f439",
        "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": "cos4428sr.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": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cos4428sr-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": "5d2d402d2891fac157f361bfc765870e5b7a2fb6971c943a4781e96e13cc54cc",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}