IR2104 Half-Bridge Gate Driver

{
  "schema_version": 1,
  "type": "component",
  "slug": "ir2104",
  "title": "IR2104 Half-Bridge Gate Driver",
  "brief": "600 V half-bridge MOSFET/IGBT gate driver with a single input and shutdown.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "gate-driver",
    "half-bridge",
    "high-side",
    "bootstrap",
    "infineon",
    "soic-8"
  ],
  "component": {
    "mpn": "IR2104",
    "manufacturer": "Infineon",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Driver",
    "subcategory": "Gate Driver",
    "datasheet": "https://www.infineon.com/assets/row/public/documents/24/49/infineon-ir2104-datasheet-en.pdf",
    "parts": {
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    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "VCC",
        "type": "power_in",
        "description": "Low-side and logic fixed supply. Recommended operating range 10 V to 20 V (abs max 25 V). Undervoltage lockout thresholds VCCUV+ 8.9 V typ / VCCUV- 8.2 V typ. Quiescent supply current IQCC 150 µA typ."
      },
      {
        "number": "2",
        "name": "IN",
        "type": "input",
        "description": "Logic input for high- and low-side gate driver outputs (HO and LO), in phase with HO. CMOS/LSTTL compatible down to 3.3 V logic. VIH ≥ 3 V, VIL ≤ 0.8 V (over VCC = 10-20 V). Input bias IIN+ 3 µA typ at VIN = 5 V."
      },
      {
        "number": "3",
        "name": "/SD",
        "type": "input",
        "description": "Active-low shutdown input; when asserted turns off both HO and LO outputs. Shutdown propagation delay tsd 160 ns typ. VSD,TH+ ≥ 3 V, VSD,TH- ≤ 0.8 V. Referenced to COM."
      },
      {
        "number": "4",
        "name": "COM",
        "type": "power_in",
        "description": "Low-side return / logic ground. Reference for VCC, IN, /SD, and LO. All voltage parameters in the datasheet are referenced to COM."
      },
      {
        "number": "5",
        "name": "LO",
        "type": "output",
        "description": "Low-side gate drive output, referenced to COM. Drives the gate of the low-side N-channel MOSFET/IGBT. Peak source/sink 130 mA / 270 mA. Turn-on/off propagation delays 680 ns / 150 ns typ."
      },
      {
        "number": "6",
        "name": "VS",
        "type": "power_in",
        "description": "High-side floating supply return; connect to the source of the high-side MOSFET (switch node). Tolerates negative transients; operational for VS -5 V to +600 V. Reference for HO and VB."
      },
      {
        "number": "7",
        "name": "HO",
        "type": "output",
        "description": "High-side gate drive output, referenced to VS. Drives the gate of the high-side N-channel MOSFET/IGBT. In phase with IN. Peak source/sink 130 mA / 270 mA. Swings between VS and VB."
      },
      {
        "number": "8",
        "name": "VB",
        "type": "power_in",
        "description": "High-side floating supply (bootstrap). Connect a bootstrap capacitor between VB and VS, charged from VCC through a bootstrap diode. Recommended VB = VS+10 V to VS+20 V, absolute max 625 V."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.infineon.com/assets/row/public/documents/24/49/infineon-ir2104-datasheet-en.pdf",
        "pages": 14,
        "sha256": "3b7877fc162f31e4",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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      "symbol": "viewers/symbol.html",
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    "models_3d": [
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        "file": "ir2104.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-07",
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        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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    ]
  },
  "metadata": {
    "specs": {
      "Type": "600 V half-bridge gate driver",
      "Output current": "210 mA source / 360 mA sink",
      "Offset voltage": "Up to 600 V (high side)",
      "Inputs": "Single IN + active-low shutdown",
      "Dead time": "Internal (~520 ns)",
      "Supply voltage": "10 V to 20 V",
      "Operating temperature": "-40 C to 125 C"
    }
  },
  "sections": [
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  "discovery_triggers": [
    "half-bridge driver",
    "high-side gate driver",
    "bootstrap driver",
    "MOSFET bridge driver"
  ],
  "discovery_pitch": "Drive both MOSFETs of a half-bridge from one logic input, with high-side bootstrap and built-in dead time.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
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  "variants": [
    {
      "mpn": "IR2104",
      "kind": "unknown"
    },
    {
      "mpn": "IR2104PbF",
      "kind": "unknown"
    },
    {
      "mpn": "IR2104S",
      "kind": "unknown"
    },
    {
      "mpn": "IR2104SPbF",
      "kind": "unknown"
    }
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}