TF21844M-TUH

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  "slug": "tf21844m-tuh",
  "title": "TF21844M-TUH",
  "brief": "TFSS Gate Drivers, SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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    "tf21844m-tuh",
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  "component": {
    "mpn": "TF21844M-TUH",
    "manufacturer": "TFSS",
    "package": "SOIC-14",
    "pin_count": 14,
    "category": "Motor Driver ICs",
    "subcategory": "Gate Drivers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590226947625017344",
    "parts": {
      "symbol": "tf21844m-tuh.kicad_sym",
      "footprint": "tf21844m-tuh.kicad_mod",
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      "model_3d_step_plain": "tf21844m-tuh.step",
      "lbr": "tf21844m-tuh.lbr"
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    "distributor_links": {
      "lcsc": "C2981475"
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    "distributor_check": {
      "checked_at": "2026-10-19T08:58:36Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "error"
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      "mouser": {
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    },
    "pins": [
      {
        "number": "1",
        "name": "IN",
        "type": "input",
        "description": "Logic input for high-side and low-side gate driver outputs (HO and LO), in phase with HO, referenced to VSS, with 2.5V minimum VIH and 0.8V maximum VIL."
      },
      {
        "number": "2",
        "name": "SD*",
        "type": "input",
        "description": "Logic input for shutdown, referenced to VSS, enabled low (2.5V positive-going and 0.8V negative-going thresholds)."
      },
      {
        "number": "3",
        "name": "VSS",
        "type": "power_in",
        "description": "Logic ground, with operating range of -5V to +5V relative to COM."
      },
      {
        "number": "4",
        "name": "DT",
        "type": "passive",
        "description": "Programmable deadtime lead referenced to VSS, set by an external resistor RDT (about 400ns at 0 ohm, 5us at 200k ohm)."
      },
      {
        "number": "5",
        "name": "COM",
        "type": "power_in",
        "description": "Low-side return."
      },
      {
        "number": "6",
        "name": "LO",
        "type": "output",
        "description": "Low-side gate drive output, 1.4A source / 1.8A sink capability, swinging from COM to VCC."
      },
      {
        "number": "7",
        "name": "VCC",
        "type": "power_in",
        "description": "Low-side and logic fixed supply, recommended 10V to 20V (absolute maximum 24V)."
      },
      {
        "number": "8",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect."
      },
      {
        "number": "9",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect."
      },
      {
        "number": "10",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect."
      },
      {
        "number": "11",
        "name": "VS",
        "type": "power_in",
        "description": "High-side floating supply return, operating up to 600V offset."
      },
      {
        "number": "12",
        "name": "HO",
        "type": "output",
        "description": "High-side gate drive output, 1.4A source / 1.8A sink capability, swinging from VS to VB."
      },
      {
        "number": "13",
        "name": "VB",
        "type": "power_in",
        "description": "High-side floating supply, recommended VS+10V to VS+20V (absolute maximum 624V)."
      },
      {
        "number": "14",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect."
      }
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  "metadata": {
    "specs": {
      "Manufacturer": "TFSS",
      "Package": "SOIC-14",
      "Category": "Motor Driver ICs",
      "Pins": "14"
    },
    "characteristics": {
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        {
          "name": "Package power dissipation, SOIC-14",
          "symbol": "PD",
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          "unit": "W",
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          "conditions": "TA ≤ 25 °C",
          "source_page": 3,
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        {
          "name": "Junction operating temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
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        {
          "name": "Lead temperature (soldering)",
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        {
          "name": "Storage temperature range",
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          "name": "Logic '1' input voltage for HO & logic '0' for LO",
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          "name": "SD* input positive going threshold",
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          "name": "High level output voltage, VBIAS - VO",
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        {
          "name": "Offset supply leakage current",
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          "name": "Quiescent VBS supply current",
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          "name": "Logic '1' input bias current",
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          "kind": "electrical",
          "unit": "mA",
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          "name": "Logic '0' input bias current",
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          "name": "VBS supply under-voltage positive going threshold",
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          "name": "VCC supply under-voltage positive going threshold",
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          "name": "Output high short circuit pulsed current",
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        {
          "name": "Turn-on propagation delay",
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          "name": "Turn-off propagation delay",
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          "name": "Deadtime matching tMDT = tDT LO-HO - tDT HO-LO",
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          "name": "Deadtime matching tMDT = tDT LO-HO - tDT HO-LO",
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