HT3845BRZ

{
  "slug": "ht3845brz",
  "version": "0.1.0",
  "type": "component",
  "description": "HTCSEMI AC-DC Controllers And Regulators, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "ht3845brz",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ht3845brz.kicad_sym",
    "ht3845brz.kicad_mod",
    "ht3845brz.glb",
    "ht3845brz.step",
    "ht3845brz.lbr",
    "docs/hero.png",
    "docs/ht3845brz-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ht3845brz-hero.glb",
    "ht3845brz-hero.overlay.json",
    "ht3845brz-etched.glb"
  ],
  "component": {
    "mpn": "HT3845BRZ",
    "manufacturer": "HTCSEMI",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590234623973494784",
    "parts": {
      "symbol": "ht3845brz.kicad_sym",
      "footprint": "ht3845brz.kicad_mod",
      "model_3d": "ht3845brz-hero.glb",
      "model_3d_plain": "ht3845brz-etched.glb",
      "model_3d_step": "ht3845brz-etched.step",
      "model_3d_step_plain": "ht3845brz.step",
      "lbr": "ht3845brz.lbr"
    },
    "distributor_links": {
      "lcsc": "C3019549"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T20:14:10Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Compensation",
        "type": "output",
        "description": "This pin is the Error Amplifier output and is made available for loop compensation."
      },
      {
        "number": "2",
        "name": "Voltage Feedback",
        "type": "input",
        "description": "This is the inverting input of the Error Amplifier, normally connected to the switching power supply output through a resistor divider, and the Current Sense and Voltage Feedback inputs are rated -0.3 V to +5.5 V."
      },
      {
        "number": "3",
        "name": "Current Sense",
        "type": "input",
        "description": "A voltage proportional to inductor current is connected to this input, and the PWM uses it to terminate output switch conduction; the input is rated -0.3 V to +5.5 V."
      },
      {
        "number": "4",
        "name": "RT/CT",
        "type": "passive",
        "description": "The oscillator frequency and maximum output duty cycle are programmed by connecting resistor RT to Vref and capacitor CT to ground, and oscillator operation to 1.0 kHz is possible."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "This pin is the combined control circuitry and power ground."
      },
      {
        "number": "6",
        "name": "Output",
        "type": "output",
        "description": "This output directly drives the gate of a power MOSFET, sourcing and sinking peak currents up to 1.0 A and switching at one-half the oscillator frequency."
      },
      {
        "number": "7",
        "name": "VCC",
        "type": "power_in",
        "description": "This pin is the positive supply of the control IC, with bias and driver voltages VCC and VC rated at 36 V maximum."
      },
      {
        "number": "8",
        "name": "Vref",
        "type": "power_out",
        "description": "This is the 5.0 V reference output that provides charging current for capacitor CT through resistor RT, is short-circuit protected, and can provide 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 datasheet does not mention the 'RZ' suffix of HT3845BRZ. The 8-pin SOIC package is identified as; The 8-pin and 14-pin pin numbers are both given in the pin function table on page 6. The 8-pin numbe; Pin types for pins 1, 4 and 6 (Compensation, RT/CT, Output) and for pin 8 (Vref) are inferred from t"
        ],
        "pages_sent": 16,
        "cost_usd": 0.0862,
        "at": "2026-10-17T20:12:45"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590234623973494784",
        "pages": 16,
        "sha256": "f6c539a7600d4bdb",
        "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": "ht3845brz.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": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ht3845brz-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": "6b0454b2f8b9af93392f2b283959c814ac00c6c4de2d8c3c3b8a50872179f772",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}