HT3843BRZ

{
  "slug": "ht3843brz",
  "version": "0.1.0",
  "type": "component",
  "description": "HTCSEMI DC-DC Converters, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management ics",
    "ht3843brz",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ht3843brz.kicad_sym",
    "ht3843brz.kicad_mod",
    "ht3843brz.glb",
    "ht3843brz.step",
    "ht3843brz.lbr",
    "docs/hero.png",
    "docs/ht3843brz-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ht3843brz-hero.glb",
    "ht3843brz-hero.overlay.json",
    "ht3843brz-etched.glb"
  ],
  "component": {
    "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",
    "parts": {
      "symbol": "ht3843brz.kicad_sym",
      "footprint": "ht3843brz.kicad_mod",
      "model_3d": "ht3843brz-hero.glb",
      "model_3d_plain": "ht3843brz-etched.glb",
      "model_3d_step": "ht3843brz-etched.step",
      "model_3d_step_plain": "ht3843brz.step",
      "lbr": "ht3843brz.lbr"
    },
    "distributor_links": {
      "lcsc": "C19192930"
    },
    "distributor_check": {
      "checked_at": "2026-11-05T15:36:12Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "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."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The SOP-8 variant is listed as R suffix, CASE 751 (SOIC-8). The MPN suffix RZ is not explained in th"
        ],
        "pages_sent": 16,
        "cost_usd": 0.084,
        "at": "2026-11-05T15:35:59"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/a82ce6008dfd0d2b7633946b96b728d3.pdf",
        "pages": 16,
        "sha256": "44cced5d2cd7d9f2",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ht3843brz.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ht3843brz-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "4aeb8bd3ae5e9870d056ef7e5b03695802ce187c88c6b166c5e6cc8421ce729b",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}