UC3869AG-S08-R

{
  "slug": "uc3869ag-s08-r",
  "version": "0.1.0",
  "type": "component",
  "description": "UTC Unisonic Tech 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)",
    "uc3869ag-s08-r",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "uc3869ag-s08-r.kicad_sym",
    "uc3869ag-s08-r.kicad_mod",
    "uc3869ag-s08-r.glb",
    "uc3869ag-s08-r.step",
    "uc3869ag-s08-r.lbr",
    "docs/hero.png",
    "docs/uc3869ag-s08-r-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "uc3869ag-s08-r-hero.glb",
    "uc3869ag-s08-r-hero.overlay.json",
    "uc3869ag-s08-r-etched.glb"
  ],
  "component": {
    "mpn": "UC3869AG-S08-R",
    "manufacturer": "UTC Unisonic Tech",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590230620644544512",
    "parts": {
      "symbol": "uc3869ag-s08-r.kicad_sym",
      "footprint": "uc3869ag-s08-r.kicad_mod",
      "model_3d": "uc3869ag-s08-r-hero.glb",
      "model_3d_plain": "uc3869ag-s08-r-etched.glb",
      "model_3d_step": "uc3869ag-s08-r-etched.step",
      "model_3d_step_plain": "uc3869ag-s08-r.step",
      "lbr": "uc3869ag-s08-r.lbr"
    },
    "distributor_links": {
      "lcsc": "C2848648"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T15:55:59Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "RT",
        "type": "input",
        "description": "Connected through an NTC resistor to ground for over-temperature shutdown; the RT pin sources about 100 µA (93 to 107 µA at VRT=0.9V) and OTP trips when the RT voltage falls below about 1.04 V (0.98 to 1.10 V)."
      },
      {
        "number": "2",
        "name": "FB",
        "type": "input",
        "description": "Feedback input whose voltage, together with the CS pin current-sense signal, sets the PWM duty cycle; the datasheet gives an open-loop voltage of 5.4 V and a PWM input gain of 3 V/V."
      },
      {
        "number": "3",
        "name": "CS",
        "type": "input",
        "description": "Current sense input for cycle-by-cycle current limiting, with a peak current flat threshold of 0.92 V and a valley threshold of 0.57 to 0.67 V, and 200 to 550 ns leading edge blanking."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the controller."
      },
      {
        "number": "5",
        "name": "GATE",
        "type": "output",
        "description": "Totem-pole gate driver output for the power MOSFET, with a typical output high level of 9 V and output low level of 1 V at 20 mA with VDD=15 V, and an internal 16 V clamp for gate protection."
      },
      {
        "number": "6",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply pin; the recommended supply range is 10 to 24 V, with a start threshold of 16 to 21 V, minimum operating voltage of 6 to 8 V, and a zener clamp of 32 to 36 V."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "8",
        "name": "HV",
        "type": "input",
        "description": "Connected to the line input or bulk capacitor through resistors for start-up; the high-voltage pin absolute maximum rating is -0.3 to 500 V and it supplies about 0.25 mA to charge VDD during power-on."
      }
    ],
    "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 pin configuration drawing on page 3 is not available as text; pin numbers and names were taken f; Pin types for RT and HV are engineering judgments (set to input) because the datasheet does not clas; Some description limits come from the electrical characteristics table rather than the pin table, si"
        ],
        "pages_sent": 9,
        "cost_usd": 0.0447,
        "at": "2026-10-18T15:53:37"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590230620644544512",
        "pages": 9,
        "sha256": "d0649d6bbddd8561",
        "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": [
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        "file": "uc3869ag-s08-r.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "uc3869ag-s08-r-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": "5ddad122ed64dd0a3429306017d7575e800d10b00e57b70c72d5a4c19f2267eb",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}