UC2842BN

{
  "slug": "uc2842bn",
  "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)",
    "uc2842bn",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "uc2842bn.kicad_sym",
    "uc2842bn.kicad_mod",
    "uc2842bn.glb",
    "uc2842bn.step",
    "uc2842bn.lbr",
    "docs/hero.png",
    "docs/uc2842bn-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "uc2842bn-hero.glb",
    "uc2842bn-hero.overlay.json",
    "uc2842bn-etched.glb"
  ],
  "component": {
    "mpn": "UC2842BN",
    "manufacturer": "lingxingic",
    "package": "DIP-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603344870128447488",
    "parts": {
      "symbol": "uc2842bn.kicad_sym",
      "footprint": "uc2842bn.kicad_mod",
      "model_3d": "uc2842bn-hero.glb",
      "model_3d_plain": "uc2842bn-etched.glb",
      "model_3d_step": "uc2842bn-etched.step",
      "model_3d_step_plain": "uc2842bn.step",
      "lbr": "uc2842bn.lbr"
    },
    "distributor_links": {
      "lcsc": "C22390253",
      "digikey": "497-7691-5-ND",
      "mouser": "511-UC2842BN"
    },
    "distributor_check": {
      "checked_at": "2026-10-15T14:53:24Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-7691-5-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "511-UC2842BN",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "COMP",
        "type": "output",
        "description": "Error amplifier output (comparison terminal) that sets the control voltage; the datasheet's absolute maximum error-amplifier output sink current is 10 mA."
      },
      {
        "number": "2",
        "name": "VFB",
        "type": "input",
        "description": "Error amplifier inverting input (negative feedback); the analog input range is -0.3 V to +6.3 V and the input bias current is -2 µA maximum at VFB = 5 V."
      },
      {
        "number": "3",
        "name": "ISENSE",
        "type": "input",
        "description": "Current-sense input to the PWM current-sense comparator, with a maximum input signal of 1 V typical (0.9 V to 1.1 V) and input bias current of -10 µA maximum."
      },
      {
        "number": "4",
        "name": "RT/CT",
        "type": "passive",
        "description": "Oscillator timing node for the RT/CT network; the datasheet's test condition is RT = 10 kΩ and CT = 3.3 nF, with a discharge current of 7.6 mA to 9 mA at VOSC = 2 V."
      },
      {
        "number": "5",
        "name": "GROUND",
        "type": "power_in",
        "description": "Ground reference for the controller, as shown on the pinout."
      },
      {
        "number": "6",
        "name": "OUTPUT",
        "type": "output",
        "description": "Push-pull gate-drive output capable of sourcing and sinking large currents for driving MOSFETs, with an output current rating of ±1 A."
      },
      {
        "number": "7",
        "name": "Vi",
        "type": "power_in",
        "description": "Supply voltage input with an absolute maximum of 30 V from a low-impedance source, and a minimum operating voltage set by the UVLO thresholds (16 V on / 10 V off for UC2842)."
      },
      {
        "number": "8",
        "name": "VREF",
        "type": "power_out",
        "description": "5.00 V reference output (4.90 V to 5.10 V at Io = 1 mA) with a short-circuit current of -30 mA 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: The pin-number-to-position mapping is from the pin table in section 2.3 (pins 1-8 with names and fun; Package association is inferred: the text lists UC2842BN in the through-hole ordering group and the ; The datasheet's electrical tables give specs at specific test conditions (for example, Tamb = -40 to",
          "1/8 pin names appear NOWHERE in the datasheet text: ['5:GROUND@p5']"
        ],
        "pages_sent": 11,
        "cost_usd": 0.0428,
        "at": "2026-10-15T14:53:09"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603344870128447488",
        "pages": 11,
        "sha256": "bfa88c81aaa5bbb5",
        "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": "uc2842bn.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          9.27,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "4a377a56a8d9e9c0b86c095ef9ecc1869ac19e7f5069a3247b294250bf4f235d",
        "checked": "2026-10-15",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "uc2842bn-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
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        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3860444d773723527549def0ca3394f2a844a4c1bc475cbe59cd71644cc5cdac",
        "checked": "2026-10-15",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}