XL494

{
  "schema_version": 1,
  "type": "component",
  "slug": "xl494",
  "title": "XL494",
  "brief": "XINLUDA AC-DC Controllers And Regulators, SOP-16. 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 (pmic)",
    "xl494",
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  "component": {
    "mpn": "XL494",
    "manufacturer": "XINLUDA",
    "package": "SOP-16",
    "pin_count": 16,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756679106941325312",
    "parts": {
      "symbol": "xl494.kicad_sym",
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      "model_3d": "xl494-hero.glb",
      "model_3d_plain": "xl494-etched.glb",
      "model_3d_step": "xl494-etched.step",
      "model_3d_step_plain": "xl494.step",
      "lbr": "xl494.lbr"
    },
    "distributor_links": {
      "lcsc": "C521178"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T13:35:04Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1IN+",
        "type": "input",
        "description": "Noninverting input to error amplifier 1; the amplifier input voltage range is -0.3 V to Vcc-2.0 V."
      },
      {
        "number": "2",
        "name": "1IN-",
        "type": "input",
        "description": "Inverting input to error amplifier 1; the amplifier input voltage range is -0.3 V to Vcc-2.0 V."
      },
      {
        "number": "3",
        "name": "FEEDBACK",
        "type": "input",
        "description": "Input pin for feedback; the feedback current is limited to 0.3 mA maximum."
      },
      {
        "number": "4",
        "name": "DTC",
        "type": "input",
        "description": "Dead-time control comparator input, with an input voltage range of 0 V to 5.25 V."
      },
      {
        "number": "5",
        "name": "CT",
        "type": "passive",
        "description": "Capacitor terminal used to set the oscillator frequency; recommended timing capacitance is 0.00047 µF to 10 µF (typ. 0.001 µF)."
      },
      {
        "number": "6",
        "name": "RT",
        "type": "passive",
        "description": "Resistor terminal used to set the oscillator frequency; recommended timing resistance is 1.8 kΩ to 500 kΩ (typ. 30 kΩ)."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "8",
        "name": "C1",
        "type": "output",
        "description": "Collector terminal of BJT output 1; collector output voltage is up to 40 V and collector output current is up to 200 mA per transistor."
      },
      {
        "number": "9",
        "name": "E1",
        "type": "output",
        "description": "Emitter terminal of BJT output 1; rated up to 200 mA per transistor."
      },
      {
        "number": "10",
        "name": "E2",
        "type": "output",
        "description": "Emitter terminal of BJT output 2; rated up to 200 mA per transistor."
      },
      {
        "number": "11",
        "name": "C2",
        "type": "output",
        "description": "Collector terminal of BJT output 2; collector output voltage is up to 40 V and collector output current is up to 200 mA per transistor."
      },
      {
        "number": "12",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply; recommended 7.0 V to 40 V (typ. 15 V), absolute maximum 40 V."
      },
      {
        "number": "13",
        "name": "OUTPUT CTRL",
        "type": "input",
        "description": "Selects single-ended/parallel output or push-pull operation."
      },
      {
        "number": "14",
        "name": "REF",
        "type": "output",
        "description": "5-V reference regulator output (4.75 V to 5.25 V); output current of the reference terminal is limited to 10 mA maximum."
      },
      {
        "number": "15",
        "name": "2IN-",
        "type": "input",
        "description": "Inverting input to error amplifier 2; the amplifier input voltage range is -0.3 V to Vcc-2.0 V."
      },
      {
        "number": "16",
        "name": "2IN+",
        "type": "input",
        "description": "Noninverting input to error amplifier 2; the amplifier input voltage range is -0.3 V to Vcc-2.0 V."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
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        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
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        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The pin table in the extracted text is garbled. The pin-to-name mapping was taken from the table row; The datasheet gives no type for CT (pin 5) or RT (pin 6); they are shown as '—'. Both are classified; The datasheet lists two packages: XL494 is SOP16 and XD494 is DIP16. The SOP-16 hint matches XL494, "
        ],
        "pages_sent": 13,
        "cost_usd": 0.0457,
        "at": "2026-10-18T13:32:51"
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        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
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  "metadata": {
    "specs": {
      "Manufacturer": "XINLUDA",
      "Package": "SOP-16",
      "Category": "Power Management (PMIC)",
      "Pins": "16"
    },
    "characteristics": {
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      "rows": [
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          "conditions": "Tamb=25℃",
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        {
          "name": "Storage temperature",
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          "unit": "℃",
          "min": -55,
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        {
          "name": "Supply voltage",
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          "typ": 15,
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        {
          "name": "Collector output voltage",
          "symbol": "Vc1；Vc2",
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          "typ": 30,
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        {
          "name": "Collector output current (single transistor)",
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          "kind": "recommended_operating",
          "unit": "mA",
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        {
          "name": "Amplifier input voltage",
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          "kind": "recommended_operating",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "upper limit printed as Vcc-2.0",
          "source_page": 4,
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        {
          "name": "Feedback current",
          "symbol": "Ifb",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 0.3,
          "conditions": "",
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        {
          "name": "Output current of the reference terminal",
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          "kind": "recommended_operating",
          "unit": "mA",
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          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 4,
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        {
          "name": "Timing resistance",
          "symbol": "RT",
          "kind": "recommended_operating",
          "unit": "k",
          "min": 1.8,
          "typ": 30,
          "max": 500,
          "conditions": "",
          "source_page": 4,
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        {
          "name": "Timing capacitance",
          "symbol": "CT",
          "kind": "recommended_operating",
          "unit": "F",
          "min": 0.00047,
          "typ": 0.001,
          "max": 10,
          "conditions": "",
          "source_page": 4,
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        {
          "name": "Oscillation frequency",
          "symbol": "fosc",
          "kind": "recommended_operating",
          "unit": "kHz",
          "min": 1,
          "typ": 40,
          "max": 200,
          "conditions": "",
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          "name": "Reference voltage",
          "symbol": "Vref",
          "kind": "electrical",
          "unit": "V",
          "min": 4.75,
          "typ": 5,
          "max": 5.25,
          "conditions": "Io=1.0mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Reference voltage change with temperature",
          "symbol": "Vref/T",
          "kind": "temperature_coefficient",
          "unit": "%",
          "min": null,
          "typ": 1.3,
          "max": 2.6,
          "conditions": "Tamb from MIN to MAX",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Voltage linearity (line regulation)",
          "symbol": "Reg line",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 2,
          "max": 25,
          "conditions": "Vcc=7.0V~40V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Load adjustment rate (load regulation)",
          "symbol": "Reg load",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 2,
          "max": 15,
          "conditions": "Io=1.0mA~10mA",
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          "source": "datasheet"
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        {
          "name": "Short-circuit output current",
          "symbol": "Isc",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 32,
          "max": null,
          "conditions": "Vref=0V，Tamb=25℃",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Collector leakage current",
          "symbol": "Ic(off)",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 2,
          "max": 100,
          "conditions": "Vcc=40V; Vce=40V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Emitter leakage current",
          "symbol": "Ie(off)",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": -100,
          "conditions": "Vcc=40V; Vc=40V; Ve=0V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Collector-emitter saturation pressure drop (common emitter)",
          "symbol": "Vc(sat)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.1,
          "max": 1.3,
          "conditions": "Common emitter: Ve=0V; Ic=200mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Collector-emitter saturation pressure drop (emitter following)",
          "symbol": "Ve(sat)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.5,
          "max": 2.5,
          "conditions": "Emitter following: Vc=15V; Ie=-200mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output control pin current",
          "symbol": "IOCH",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.2,
          "max": 3.5,
          "conditions": "Voc=Vref",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output voltage rise time (common emitter)",
          "symbol": "Tr",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 100,
          "max": 200,
          "conditions": "Common emitter: Test Figure 3",
          "source_page": 5,
          "source": "datasheet"
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        {
          "name": "Output voltage rise time (emitter following)",
          "symbol": "Tr",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 100,
          "max": 200,
          "conditions": "Emitterfollowing: Test Figure 4",
          "source_page": 5,
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        },
        {
          "name": "Output voltage drop time (common emitter)",
          "symbol": "Tf",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 25,
          "max": 100,
          "conditions": "Common emitter: Test Figure 3",
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        {
          "name": "Output voltage drop time (emitter following)",
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          "kind": "timing",
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          "min": null,
          "typ": 40,
          "max": 100,
          "conditions": "Emitterfollowing: Test Figure 4",
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        {
          "name": "Input offset voltage",
          "symbol": "Vio",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 2,
          "max": 10,
          "conditions": "Vo (pin3)=2.5V",
          "source_page": 5,
          "source": "datasheet"
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        {
          "name": "Input offset current",
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          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": 5,
          "max": 250,
          "conditions": "Vo (pin3)=2.5V",
          "source_page": 6,
          "source": "datasheet"
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        {
          "name": "Input bias current",
          "symbol": "IIB",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 0.1,
          "max": 1,
          "conditions": "Vo (pin3)=2.5V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input common-mode voltage range",
          "symbol": "VICR",
          "kind": "electrical",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "Vcc=7.0V~40V; upper limit printed as Vcc-2.0",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Open-loop voltage gain",
          "symbol": "GVOL",
          "kind": "electrical",
          "unit": "dB",
          "min": 70,
          "typ": 95,
          "max": null,
          "conditions": "Vo=0.5V~3.5V; RL=2.0k; Vo=3.0V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Common mode rejection ratio",
          "symbol": "CMRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 65,
          "typ": 90,
          "max": null,
          "conditions": "Vcc=40V",
          "source_page": 6,
          "source": "datasheet"
        },
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          "name": "Output absorbing current",
          "symbol": "Io-",
          "kind": "electrical",
          "unit": "mA",
          "min": 0.3,
          "typ": 0.7,
          "max": null,
          "conditions": "Vo (pin3)=0.7V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output source current",
          "symbol": "Io+",
          "kind": "electrical",
          "unit": "mA",
          "min": -2,
          "typ": -4,
          "max": null,
          "conditions": "Vo (pin3)=3.5V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input threshold voltage (PWM comparator, zero duty cycle)",
          "symbol": "VTH",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 4,
          "max": 4.5,
          "conditions": "Zero duty cycle",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input suction current",
          "symbol": "II-",
          "kind": "electrical",
          "unit": "mA",
          "min": 0.3,
          "typ": 0.7,
          "max": null,
          "conditions": "V (pin3)=0.7V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Dead-zone control input bias current",
          "symbol": "IIB(DT)",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": -2,
          "max": -10,
          "conditions": "Vin=0V~5.25V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input threshold voltage (pin4), zero duty cycle",
          "symbol": "VTH",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 3,
          "max": 3.3,
          "conditions": "Zero duty cycle",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input threshold voltage (pin4), maximum duty cycle",
          "symbol": "VTH",
          "kind": "electrical",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "Maximum duty cycle",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Maximum duty cycle (per output)",
          "symbol": "DCmax",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 45,
          "max": null,
          "conditions": "Vin=0V; RT=12k; CT=0.1F",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Frequency",
          "symbol": "fosc",
          "kind": "electrical",
          "unit": "kHz",
          "min": null,
          "typ": 10,
          "max": null,
          "conditions": "RT=12k; CT=0.01F",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Standard frequency offset",
          "symbol": "fosc",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 3,
          "max": null,
          "conditions": "RT=30k; CT=0.001F",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Frequency variation with voltage",
          "symbol": "fosc/V",
          "kind": "voltage_coefficient",
          "unit": "%",
          "min": null,
          "typ": 0.1,
          "max": null,
          "conditions": "Vcc=7.0V~40V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Change in frequency with temperature",
          "symbol": "fosc/T",
          "kind": "temperature_coefficient",
          "unit": "%",
          "min": null,
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