main
Ray Set visibility: public 07edc2f 7d ago
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  "type": "component",
  "slug": "tc4427coa",
  "title": "TC4427COA",
  "brief": "Microchip Tech Gate Drivers, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "motor driver ics",
    "tc4427coa",
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    "extractor-text"
  ],
  "component": {
    "mpn": "TC4427COA",
    "manufacturer": "Microchip Tech",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Motor Driver ICs",
    "subcategory": "Gate Drivers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589041807186907136",
    "parts": {
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      "model_3d": "tc4427coa-hero.glb",
      "model_3d_plain": "tc4427coa-etched.glb",
      "model_3d_step": "tc4427coa-etched.step",
      "model_3d_step_plain": "tc4427coa.step",
      "lbr": "tc4427coa.lbr"
    },
    "distributor_links": {
      "lcsc": "C636890",
      "digikey": "TC4427COA-ND",
      "mouser": "579-TC4427COA"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T04:09:53Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "TC4427COA-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "579-TC4427COA",
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    },
    "pins": [
      {
        "number": "1",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection; the datasheet lists this pin as not connected internally."
      },
      {
        "number": "2",
        "name": "IN A",
        "type": "input",
        "description": "MOSFET driver input A is a high-impedance TTL/CMOS compatible input with 300 mV of hysteresis, and any unused driver input must be grounded."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Device return pin that should have a low-impedance connection to the bias supply return, since high peak current flows out of it when the capacitive load is discharged."
      },
      {
        "number": "4",
        "name": "IN B",
        "type": "input",
        "description": "MOSFET driver input B is a high-impedance TTL/CMOS compatible input with 300 mV of hysteresis, and any unused driver input must be grounded."
      },
      {
        "number": "5",
        "name": "OUT B",
        "type": "output",
        "description": "MOSFET driver output B is a low-impedance CMOS push-pull output with pull-up and pull-down devices of equal strength."
      },
      {
        "number": "6",
        "name": "VDD",
        "type": "power_in",
        "description": "Bias supply input rated for 4.5V to 18V with respect to GND, which should be bypassed with local ceramic capacitors (1.0 µF suggested)."
      },
      {
        "number": "7",
        "name": "OUT A",
        "type": "output",
        "description": "MOSFET driver output A is a low-impedance CMOS push-pull output with pull-up and pull-down devices of equal strength."
      },
      {
        "number": "8",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection; the datasheet lists this pin as not connected internally."
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        "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 pinout is taken from the 8-Pin PDIP/MSOP/SOIC column of Table 3-1 (page 9), which is shared acro; The datasheet's Package Types and pin table do not explicitly say which pins are NC in the SOIC draw"
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        "pages_sent": 28,
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        "at": "2026-10-19T04:09:38"
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        "sha256": "92aa2e8a1bda9e95",
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      "cad": "KiCad official (CC-BY-SA 4.0)",
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      "Package": "SOIC-8",
      "Category": "Motor Driver ICs",
      "Pins": "8"
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          "name": "Storage Temperature Range",
          "symbol": "TA",
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          "unit": "°C",
          "min": -65,
          "typ": null,
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          "name": "Maximum Junction Temperature",
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          "min": 4.5,
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          "source_page": 9,
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        {
          "name": "Thermal Resistance, 8L-SOIC (junction to ambient)",
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          "kind": "thermal",
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          "typ": 155,
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          "source_page": 4,
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          "name": "Peak Output Current",
          "symbol": "IPK",
          "kind": "electrical",
          "unit": "A",
          "min": null,
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          "conditions": "VDD = 18V",
          "source_page": 3,
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          "name": "Peak Output Current (over operating temperature range)",
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  "author": {
    "name": "Ray",
    "email": "[email protected]"
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