U3315

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  "type": "component",
  "slug": "u3315",
  "title": "U3315",
  "brief": "UNI-SEMI Gate Drive ICs, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management ics",
    "u3315",
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  "component": {
    "mpn": "U3315",
    "manufacturer": "UNI-SEMI",
    "package": "TSSOP-20",
    "pin_count": 20,
    "category": "Power Management ICs",
    "subcategory": "Gate Drive ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/1650c257b97a23f56694b8b29327ceeb.pdf",
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      "lbr": "u3315.lbr"
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    "distributor_links": {
      "lcsc": "C400134"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T22:07:44Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "HIN1",
        "type": "input",
        "description": "Logic input for high side gate driver output HO1, in phase; 3.3 V logic compatible, internal ~200k pull-down, minimum recommended pulse width 300 ns."
      },
      {
        "number": "2",
        "name": "HIN2",
        "type": "input",
        "description": "Logic input for high side gate driver output HO2, in phase; 3.3 V logic compatible, internal ~200k pull-down, minimum recommended pulse width 300 ns."
      },
      {
        "number": "3",
        "name": "HIN3",
        "type": "input",
        "description": "Logic input for high side gate driver output HO3, in phase; 3.3 V logic compatible, internal ~200k pull-down, minimum recommended pulse width 300 ns."
      },
      {
        "number": "4",
        "name": "LIN1",
        "type": "input",
        "description": "Active-low (overbar) logic input for low side gate driver output LO1, out of phase for U3315; 3.3 V logic compatible."
      },
      {
        "number": "5",
        "name": "LIN2",
        "type": "input",
        "description": "Active-low (overbar) logic input for low side gate driver output LO2, out of phase for U3315; 3.3 V logic compatible."
      },
      {
        "number": "6",
        "name": "LIN3",
        "type": "input",
        "description": "Active-low (overbar) logic input for low side gate driver output LO3, out of phase for U3315; 3.3 V logic compatible."
      },
      {
        "number": "7",
        "name": "VCC",
        "type": "power_in",
        "description": "Low side and logic fixed supply, recommended 4.5 V to 20 V (absolute max 25 V), with UVLO."
      },
      {
        "number": "8",
        "name": "COM",
        "type": "power_in",
        "description": "Logic ground, reference for all voltages."
      },
      {
        "number": "9",
        "name": "LO3",
        "type": "output",
        "description": "Low side gate driver output 3 with 1.2 A source and 1.5 A sink short-circuit pulse current."
      },
      {
        "number": "10",
        "name": "LO2",
        "type": "output",
        "description": "Low side gate driver output 2 with 1.2 A source and 1.5 A sink short-circuit pulse current."
      },
      {
        "number": "11",
        "name": "LO1",
        "type": "output",
        "description": "Low side gate driver output 1 with 1.2 A source and 1.5 A sink short-circuit pulse current."
      },
      {
        "number": "12",
        "name": "VS3",
        "type": "passive",
        "description": "High voltage floating supply return for phase 3; offset operating range -6 V to 260 V."
      },
      {
        "number": "13",
        "name": "HO3",
        "type": "output",
        "description": "High side gate driver output 3 with 1.2 A source and 1.5 A sink short-circuit pulse current."
      },
      {
        "number": "14",
        "name": "VB3",
        "type": "power_in",
        "description": "High side floating supply for phase 3, VS3+4.5 V to VS3+20 V (absolute max 325 V)."
      },
      {
        "number": "15",
        "name": "VS2",
        "type": "passive",
        "description": "High voltage floating supply return for phase 2; offset operating range -6 V to 260 V."
      },
      {
        "number": "16",
        "name": "HO2",
        "type": "output",
        "description": "High side gate driver output 2 with 1.2 A source and 1.5 A sink short-circuit pulse current."
      },
      {
        "number": "17",
        "name": "VB2",
        "type": "power_in",
        "description": "High side floating supply for phase 2, VS2+4.5 V to VS2+20 V (absolute max 325 V)."
      },
      {
        "number": "18",
        "name": "VS1",
        "type": "passive",
        "description": "High voltage floating supply return for phase 1; offset operating range -6 V to 260 V."
      },
      {
        "number": "19",
        "name": "HO1",
        "type": "output",
        "description": "High side gate driver output 1 with 1.2 A source and 1.5 A sink short-circuit pulse current."
      },
      {
        "number": "20",
        "name": "VB1",
        "type": "power_in",
        "description": "High side floating supply for phase 1, VS1+4.5 V to VS1+20 V (absolute max 325 V)."
      }
    ],
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        "guard_notes": [
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          "name": "Quiescent VCC supply current in standby mode",
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          "name": "Offset supply leakage current",
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          "typ": null,
          "max": 0.8,
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        {
          "name": "Turn-on propagation delay",
          "symbol": "ton",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 220,
          "max": 260,
          "conditions": "VHIN1,2,3 or VLIN1,2,3=5V, VS1,2,3=0",
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        {
          "name": "Turn-off propagation delay",
          "symbol": "toff",
          "kind": "timing",
          "unit": "ns",
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          "max": 140,
          "conditions": "VHIN1,2,3 or VLIN1,2,3=0, VS1,2,3=0",
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          "symbol": "MDT",
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          "name": "Delay matching",
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          "name": "Allowable offset voltage slew rate",
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          "name": "Package power dissipation TSSOP20",
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          "unit": "W",
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        {
          "name": "Thermal resistance junction to ambient TSSOP20",
          "symbol": "RthJA",
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          "unit": "°C/W",
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          "name": "Junction temperature",
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          "conditions": "soldering, 10 seconds",
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          "typ": null,
          "max": 20,
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          "name": "High side floating supply offset voltage",
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          "kind": "recommended_operating",
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          "max": 260,
          "conditions": "Note1: logic operational for VS of -6V to +260V",
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          "name": "Logic input voltage (max is COM + 5)",
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          "kind": "recommended_operating",
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          "name": "VCC supply under-voltage lockout hysteresis",
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          "unit": "V",
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          "name": "Operating VCC supply current",
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          "name": "Input negative going threshold",
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          "name": "High side output LOW short-circuit pulse current",
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          "source": "datasheet"
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