HT494ARZ

{
  "schema_version": 1,
  "type": "component",
  "slug": "ht494arz",
  "title": "HT494ARZ",
  "brief": "HTCSEMI 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)",
    "ht494arz",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "HT494ARZ",
    "manufacturer": "HTCSEMI",
    "package": "SOP-16",
    "pin_count": 16,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588954743276785664",
    "parts": {
      "symbol": "ht494arz.kicad_sym",
      "footprint": "ht494arz.kicad_mod",
      "model_3d": "ht494arz-hero.glb",
      "model_3d_plain": "ht494arz-etched.glb",
      "model_3d_step": "ht494arz-etched.step",
      "model_3d_step_plain": "ht494arz.step",
      "lbr": "ht494arz.lbr"
    },
    "distributor_links": {
      "lcsc": "C2937068"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T02:56:52Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1IN+",
        "type": "input",
        "description": "Error amplifier 1 non-inverting input; common-mode range -0.3 V to Vcc-2 V."
      },
      {
        "number": "2",
        "name": "1IN-",
        "type": "input",
        "description": "Error amplifier 1 inverting input; common-mode range -0.3 V to Vcc-2 V."
      },
      {
        "number": "3",
        "name": "FEEDBACK",
        "type": "bidirectional",
        "description": "Error amplifier outputs and PWM comparator input node used for loop compensation; current into this terminal is limited to 0.3 mA."
      },
      {
        "number": "4",
        "name": "DTC",
        "type": "input",
        "description": "Dead-time control input; 0 V gives maximum duty cycle and about 3.3 V gives zero duty cycle, input bias current -10 µA max."
      },
      {
        "number": "5",
        "name": "CT",
        "type": "passive",
        "description": "Timing capacitor connection for the oscillator, recommended 0.47 nF to 10000 nF."
      },
      {
        "number": "6",
        "name": "RT",
        "type": "passive",
        "description": "Timing resistor connection for the oscillator, recommended 1.8 kΩ to 500 kΩ."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "8",
        "name": "C1",
        "type": "passive",
        "description": "Collector of output transistor 1, uncommitted, rated 200 mA sink/source and 40 V maximum recommended."
      },
      {
        "number": "9",
        "name": "E1",
        "type": "passive",
        "description": "Emitter of output transistor 1, uncommitted for common-emitter or emitter-follower operation."
      },
      {
        "number": "10",
        "name": "E2",
        "type": "passive",
        "description": "Emitter of output transistor 2, uncommitted for common-emitter or emitter-follower operation."
      },
      {
        "number": "11",
        "name": "C2",
        "type": "passive",
        "description": "Collector of output transistor 2, uncommitted, rated 200 mA sink/source and 40 V maximum recommended."
      },
      {
        "number": "12",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage input, recommended 7 V to 40 V (absolute maximum 41 V)."
      },
      {
        "number": "13",
        "name": "OUTPUT CTRL",
        "type": "input",
        "description": "Output control: grounded gives single-ended or parallel output, tied to Vref gives normal push-pull operation."
      },
      {
        "number": "14",
        "name": "REF",
        "type": "power_out",
        "description": "5 V reference regulator output, 4.75 V to 5.25 V at Io=1 mA."
      },
      {
        "number": "15",
        "name": "2IN-",
        "type": "input",
        "description": "Error amplifier 2 inverting input; common-mode range -0.3 V to Vcc-2 V."
      },
      {
        "number": "16",
        "name": "2IN+",
        "type": "input",
        "description": "Error amplifier 2 non-inverting input; common-mode range -0.3 V to Vcc-2 V."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Ordering table lists only HT494AN (DIP) and HT494AR (SOP); the 'Z' suffix of HT494ARZ is not explain; Pin 3 is labelled 'feedback'; the bidirectional type is inferred from the block diagram, where both ",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 5,
        "cost_usd": 0.1414,
        "at": "2026-10-18T02:54:39"
      },
      "datasheet": {
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        "pages": 5,
        "sha256": "64bc3d957ff0775b",
        "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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        "checked": "2026-10-18",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "HTCSEMI",
      "Package": "SOP-16",
      "Category": "Power Management (PMIC)",
      "Pins": "16"
    },
    "characteristics": {
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      "rows": [
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          "name": "Supply Voltage",
          "symbol": "Vcc",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 7,
          "typ": null,
          "max": 40,
          "conditions": "",
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        {
          "name": "Amplifier Input Voltage",
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        {
          "name": "Collector Output Voltage",
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          "name": "Collector Output Current (each transistor)",
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        {
          "name": "Current Into Feedback Terminal",
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        {
          "name": "Timing Capacitor",
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          "max": 10000,
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        {
          "name": "Timing Resistor",
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          "kind": "recommended_operating",
          "unit": "k",
          "min": 1.8,
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          "max": 500,
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        {
          "name": "Oscillator Frequency",
          "symbol": "fOSC",
          "kind": "recommended_operating",
          "unit": "kHz",
          "min": 1,
          "typ": null,
          "max": 300,
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        {
          "name": "Operating Free-Air Temperature",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "oC",
          "min": -20,
          "typ": null,
          "max": 85,
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        {
          "name": "Supply Voltage",
          "symbol": "Vcc",
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          "name": "Collector Output Voltage",
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          "min": null,
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        },
        {
          "name": "Continuous Total Dissipation at or below 25oC",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 1000,
          "conditions": "at or below 25oC",
          "source_page": 2,
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        },
        {
          "name": "Operating Free-Air Temperature Range",
          "symbol": "TA",
          "kind": "absolute_maximum",
          "unit": "oC",
          "min": -20,
          "typ": null,
          "max": 85,
          "conditions": "",
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        },
        {
          "name": "Storage Temperature Range",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "oC",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Collector Output Current",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 250,
          "conditions": "",
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        {
          "name": "Output voltage (Vref)",
          "symbol": "Vref",
          "kind": "electrical",
          "unit": "V",
          "min": 4.75,
          "typ": null,
          "max": 5.25,
          "conditions": "Io=1mA",
          "source_page": 2,
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        {
          "name": "Input regulation",
          "symbol": "",
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          "min": null,
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          "max": 25,
          "conditions": "Vcc=7V to 40V, Ta=25oC",
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        {
          "name": "Output regulation",
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          "min": null,
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          "max": 15,
          "conditions": "Io=1 to 10mA, Ta=25oC",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output voltage change with temperature",
          "symbol": "",
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          "unit": "%",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "Ta=-20 oC to 85 oC",
          "source_page": 2,
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        },
        {
          "name": "Short circuit output current",
          "symbol": "",
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          "max": 60,
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        {
          "name": "Input bias current (pin 4)",
          "symbol": "IIB",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": -10,
          "conditions": "Vi=0V to 5.25V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum duty cycle (each output)",
          "symbol": "DCmax",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 45,
          "conditions": "Vi(pin 4)=0V",
          "source_page": 2,
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        {
          "name": "Input threshold voltage (pin 4)",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 3.3,
          "conditions": "zero duty cycle",
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        {
          "name": "Input threshold voltage (pin 4)",
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          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0,
          "conditions": "maximum duty cycle",
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        {
          "name": "Input offset voltage",
          "symbol": "VIO",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "Vo(pin 3)=2.5",
          "source_page": 2,
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        {
          "name": "Input offset current",
          "symbol": "IIO",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": 250,
          "conditions": "Vo(pin 3)=2.5",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input bias current",
          "symbol": "IIB",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "Vo(pin 3)=2.5",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Common mode input voltage range LOW",
          "symbol": "VICR",
          "kind": "electrical",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "Vcc=7 to 40V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Open loop voltage amplification",
          "symbol": "AVD",
          "kind": "electrical",
          "unit": "dB",
          "min": 70,
          "typ": null,
          "max": null,
          "conditions": "Vo=3V, Vo=0.5 to 3.5V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Common mode rejection ratio",
          "symbol": "CMRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 65,
          "typ": null,
          "max": null,
          "conditions": "Vcc=40V, Ta=25oC",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output sink current (pin 3)",
          "symbol": "IO-",
          "kind": "electrical",
          "unit": "mA",
          "min": 0.3,
          "typ": null,
          "max": null,
          "conditions": "VID=-15mV to -5V, Vo(pin 3)=0.7V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output source current (pin 3)",
          "symbol": "IO+",
          "kind": "electrical",
          "unit": "mA",
          "min": -2,
          "typ": null,
          "max": null,
          "conditions": "VID=15mV to 5V, Vo(pin 3)=3.5V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input threshold voltage (pin 3)",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 4.5,
          "conditions": "zero duty cycle",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input sink current (pin 3)",
          "symbol": "",
          "kind": "electrical",
          "unit": "mA",
          "min": 0.3,
          "typ": null,
          "max": null,
          "conditions": "Vo(pin 3)=0.7V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output voltage rise time",
          "symbol": "tr",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "Common emitter configuration",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output voltage fall time",
          "symbol": "tf",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "Common emitter configuration",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Collector off-state current",
          "symbol": "ICEX",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "VCE=40V, Vcc=40V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Emitter off-state current",
          "symbol": "IEX",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": -100,
          "conditions": "Vcc=Vc=40V, VE=40V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Collector-Emitter saturation voltage (common emitter)",
          "symbol": "VCE(sat)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.3,
          "conditions": "VE=0, Ic=200mA",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Collector-Emitter saturation voltage (emitter-follower)",
          "symbol": "VCE(sat)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 2.5,
          "conditions": "Vc=15V, IE=-200mA",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output control input current",
          "symbol": "",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 3.5,
          "conditions": "Vi=Vref",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Standard deviation of frequency",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 30,
          "conditions": "All values of Vcc, CT, RT, Ta are constant",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Frequency change with voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "Vcc=7V to 40V, Ta=25oC",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Power rating (package D) at TA=25oC",
          "symbol": "PD",
          "kind": "thermal",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 900,
          "conditions": "Package D, TA=25oC",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Power rating (package D) at TA=70oC",
          "symbol": "PD",
          "kind": "thermal",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 608,
          "conditions": "Package D, TA=70oC",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Power rating (package D) at TA=85oC",
          "symbol": "PD",
          "kind": "thermal",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 494,
          "conditions": "Package D, TA=85oC",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Frequency",
          "symbol": "fOSC",
          "kind": "electrical",
          "unit": "kHz",
          "min": null,
          "typ": 30,
          "max": null,
          "conditions": "CT=0.01F, RT=12k",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Unity-gain bandwidth",
          "symbol": "",
          "kind": "electrical",
          "unit": "kHz",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Derating factor above TA (package D)",
          "symbol": "",
          "kind": "thermal",
          "unit": "mW/oC",
          "min": null,
          "typ": 7.6,
          "max": null,
          "conditions": "Derate above TA=25oC",
          "source_page": 2,
          "source": "datasheet"
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    "info"
  ],
  "discovery_triggers": [
    "ht494arz"
  ],
  "discovery_pitch": "HT494ARZ (HTCSEMI) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "ht494arz.kicad_sym",
    "ht494arz.kicad_mod",
    "ht494arz.glb",
    "ht494arz.step",
    "ht494arz.lbr",
    "docs/hero.png",
    "docs/ht494arz-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ht494arz-hero.glb",
    "ht494arz-hero.overlay.json",
    "ht494arz-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}