UC2845BN

{
  "slug": "uc2845bn",
  "version": "0.1.0",
  "type": "component",
  "description": "lingxingic AC-DC Controllers And Regulators, DIP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "uc2845bn",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "uc2845bn.kicad_sym",
    "uc2845bn.kicad_mod",
    "uc2845bn.glb",
    "uc2845bn.step",
    "uc2845bn.lbr",
    "docs/hero.png",
    "docs/uc2845bn-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "uc2845bn-hero.glb",
    "uc2845bn-hero.overlay.json",
    "uc2845bn-etched.glb"
  ],
  "component": {
    "mpn": "UC2845BN",
    "manufacturer": "lingxingic",
    "package": "DIP-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/43c225c0b5926398a715de3fdb66f6d2.pdf",
    "parts": {
      "symbol": "uc2845bn.kicad_sym",
      "footprint": "uc2845bn.kicad_mod",
      "model_3d": "uc2845bn-hero.glb",
      "model_3d_plain": "uc2845bn-etched.glb",
      "model_3d_step": "uc2845bn-etched.step",
      "model_3d_step_plain": "uc2845bn.step",
      "lbr": "uc2845bn.lbr"
    },
    "distributor_links": {
      "lcsc": "C22390259",
      "digikey": "497-UC2845BN-ND",
      "mouser": "511-UC2845BN"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T06:29:55Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-UC2845BN-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-UC2845BN",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "COMP",
        "type": "passive",
        "description": "Error amplifier output and compensation node, with the error amplifier sink current limited to 10 mA (Isink(EA)) in the absolute maximum ratings."
      },
      {
        "number": "2",
        "name": "VFB",
        "type": "input",
        "description": "Error amplifier inverting feedback input with input bias current of -0.1 uA typical and -2 uA maximum at VFB=5 V."
      },
      {
        "number": "3",
        "name": "ISENSE",
        "type": "input",
        "description": "Current sense input to the PWM comparator with a maximum input signal of 1 V (0.9 to 1.1 V) and a current sense gain of 3 V/V."
      },
      {
        "number": "4",
        "name": "RT/CT",
        "type": "passive",
        "description": "Oscillator timing node where RT and CT set the switching frequency, tested at RT=10 kΩ and CT=3.3 nF, with operation up to 500 kHz."
      },
      {
        "number": "5",
        "name": "GROUND",
        "type": "power_in",
        "description": "Ground reference pin of the controller."
      },
      {
        "number": "6",
        "name": "OUTPUT",
        "type": "output",
        "description": "Push-pull output stage that sources or sinks up to ±1 A to drive MOSFET power devices."
      },
      {
        "number": "7",
        "name": "Vi",
        "type": "power_in",
        "description": "Supply input with an absolute maximum of 30 V from a low-impedance source, tested at 15 V."
      },
      {
        "number": "8",
        "name": "VREF",
        "type": "power_out",
        "description": "Internal reference output of 5.00 V typical (4.90 to 5.10 V) at Io=1 mA, with short-circuit current of -30 to -180 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: Pin types for COMP, RT/CT and VREF are inferred from their stated functions because the datasheet do",
          "1/8 pin names appear NOWHERE in the datasheet text: ['5:GROUND@p5']"
        ],
        "pages_sent": 11,
        "cost_usd": 0.0144,
        "at": "2026-10-27T06:29:46"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/43c225c0b5926398a715de3fdb66f6d2.pdf",
        "pages": 11,
        "sha256": "8dbc34365386c5bd",
        "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"
    },
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
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          6.98
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        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "4a377a56a8d9e9c0b86c095ef9ecc1869ac19e7f5069a3247b294250bf4f235d",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "uc2845bn-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
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        "sha256": "a267ff32d358bd1c91fe7d6e46d0abd70a6cd31a5993c2cf94a79a009e5876c5",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
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  }
}