HT3843BRZ

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  "type": "component",
  "slug": "ht3843brz",
  "title": "HT3843BRZ",
  "brief": "HTCSEMI DC-DC Converters, SOP-8. 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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    "power management ics",
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    "mpn": "HT3843BRZ",
    "manufacturer": "HTCSEMI",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Power Management ICs",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/a82ce6008dfd0d2b7633946b96b728d3.pdf",
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      "lbr": "ht3843brz.lbr"
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    "distributor_links": {
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      "source": "Component Ocean /api/assign-pns",
      "digikey": {
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        "status": "no match"
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      "mouser": {
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    "pins": [
      {
        "number": "1",
        "name": "Compensation",
        "type": "output",
        "description": "Error amplifier output made available for loop compensation; it is offset by two diode drops (1.4 V) and divided by three before connecting to the current sense comparator."
      },
      {
        "number": "2",
        "name": "Voltage Feedback",
        "type": "input",
        "description": "Inverting input of the error amplifier, normally connected to the switching power supply output through a resistor divider."
      },
      {
        "number": "3",
        "name": "Current Sense",
        "type": "input",
        "description": "Receives a voltage proportional to inductor current that terminates output switch conduction; under abnormal conditions the comparator threshold is internally clamped to 1.0 V."
      },
      {
        "number": "4",
        "name": "RT/CT",
        "type": "passive",
        "description": "Programs the oscillator frequency and maximum output duty cycle with resistor RT to Vref and capacitor CT to ground; operation to 500 kHz is possible."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Combined control circuitry and power ground."
      },
      {
        "number": "6",
        "name": "Output",
        "type": "output",
        "description": "Directly drives the gate of a power MOSFET; peak currents up to 1.0 A are sourced and sunk by this pin."
      },
      {
        "number": "7",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply of the control IC; the bias and driver voltage maximum rating is 30 V."
      },
      {
        "number": "8",
        "name": "Vref",
        "type": "power_out",
        "description": "5.0 V reference output that provides charging current for CT through RT; it is short-circuit protected and capable of providing in excess of 20 mA."
      }
    ],
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          "name": "Line regulation",
          "symbol": "Regline",
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          "name": "Oscillator discharge current",
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          "kind": "electrical",
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          "name": "Open loop voltage gain",
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          "name": "Unity gain bandwidth",
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          "name": "Error amplifier power supply rejection ratio",
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          "name": "Error amplifier output low state voltage",
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          "name": "Current sense input voltage gain",
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          "kind": "electrical",
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          "max": 3.15,
          "conditions": "Notes 5 and 6",
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          "name": "Maximum current sense input threshold",
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          "kind": "electrical",
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          "max": 1.1,
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        {
          "name": "Propagation delay (current sense input to output)",
          "symbol": "tPLH(In/Out)",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 150,
          "max": 300,
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          "name": "Output low state voltage (20 mA sink)",
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          "typ": 0.1,
          "max": 0.4,
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          "name": "Output low state voltage (200 mA sink)",
          "symbol": "VOL",
          "kind": "electrical",
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          "min": null,
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          "name": "Output high state voltage (20 mA source)",
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          "min": 13,
          "typ": 13.5,
          "max": null,
          "conditions": "ISource = 20 mA",
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          "name": "Output high state voltage (200 mA source)",
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          "min": 12,
          "typ": 13.4,
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        {
          "name": "Output voltage with UVLO activated",
          "symbol": "VOL(UVLO)",
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          "conditions": "VCC = 6.0V, ISink = 1.0 mA",
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          "conditions": "CL = 1.0 nF, TJ = 25C",
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          "name": "Output voltage fall time",
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          "name": "Startup threshold (VCC), HTX843B",
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          "name": "Minimum operating voltage after turn-on (VCC), HTX843B",
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          "min": 7,
          "typ": 7.6,
          "max": 8.2,
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          "name": "Maximum duty cycle",
          "symbol": "DC(max)",
          "kind": "electrical",
          "unit": "%",
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          "typ": 36,
          "max": null,
          "conditions": "ICC = 25mA",
          "source_page": 4,
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          "name": "Bias and driver voltages",
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          "name": "Total power supply and zener current",
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          "name": "Output energy (capacitive load per cycle)",
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          "unit": "µJ",
          "min": null,
          "typ": null,
          "max": 5,
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          "name": "Current sense, voltage feedback, Vref and RT/CT inputs",
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          "unit": "V",
          "min": -0.3,
          "typ": null,
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          "conditions": "",
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          "name": "Compensation",
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          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7.2,
          "conditions": "",
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          "name": "Error amplifier output sink current",
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          "min": null,
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          "max": 10,
          "conditions": "",
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          "conditions": "TA = 25C",
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          "conditions": "HT3842B, HT3843B",
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          "name": "Thermal resistance, junction-to-air, SOIC-8 (Case 751)",
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          "min": null,
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