UC3844BNG

{
  "slug": "uc3844bng",
  "version": "0.1.0",
  "type": "component",
  "description": "onsemi AC-DC Controllers & Regulators, DIP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management ics",
    "uc3844bng",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
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    "uc3844bng.kicad_mod",
    "uc3844bng.glb",
    "uc3844bng.step",
    "uc3844bng.lbr",
    "docs/hero.png",
    "docs/uc3844bng-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "uc3844bng-hero.glb",
    "uc3844bng-hero.overlay.json",
    "uc3844bng-etched.glb"
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  "component": {
    "mpn": "UC3844BNG",
    "manufacturer": "onsemi",
    "package": "DIP-8",
    "pin_count": 8,
    "category": "Power Management ICs",
    "subcategory": "AC-DC Controllers & Regulators",
    "datasheet": "https://www.onsemi.com/pdf/datasheet/uc3844bn-d.pdf",
    "parts": {
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      "footprint": "uc3844bng.kicad_mod",
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      "model_3d_plain": "uc3844bng-etched.glb",
      "model_3d_step": "uc3844bng-etched.step",
      "model_3d_step_plain": "uc3844bng.step",
      "lbr": "uc3844bng.lbr"
    },
    "distributor_links": {
      "lcsc": "C5291",
      "digikey": "2156-UC3844BNG-OS-ND",
      "mouser": "863-UC3844BNG"
    },
    "distributor_check": {
      "checked_at": "2026-11-07T02:24:11Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "2156-UC3844BNG-OS-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "863-UC3844BNG",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Compensation",
        "type": "output",
        "description": "Error Amplifier output made available for loop compensation; sink current max 10 mA."
      },
      {
        "number": "2",
        "name": "Voltage Feedback",
        "type": "input",
        "description": "Inverting input of the Error Amplifier, normally connected to the supply output through a resistor divider; input range -0.3 to +5.5 V."
      },
      {
        "number": "3",
        "name": "Current Sense",
        "type": "input",
        "description": "Receives a voltage proportional to inductor current, used by the PWM to terminate output switch conduction; input range -0.3 to +5.5 V."
      },
      {
        "number": "4",
        "name": "RT/CT",
        "type": "passive",
        "description": "Oscillator frequency and maximum output duty cycle are set by resistor RT to Vref and capacitor CT to ground; operation down to 1.0 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, sourcing and sinking peak currents up to 1.0 A, switching at one-half the oscillator frequency."
      },
      {
        "number": "7",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply of the control IC; rated 36 V maximum (zener clamped), total supply plus zener current 30 mA."
      },
      {
        "number": "8",
        "name": "Vref",
        "type": "power_out",
        "description": "5.0 V reference output that provides charging current for capacitor CT through resistor RT."
      }
    ],
    "provenance": {
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        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
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        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 10,
        "cost_usd": 0.0756,
        "at": "2026-11-07T02:24:04"
      },
      "datasheet": {
        "url": "https://www.onsemi.com/pdf/datasheet/uc3844bn-d.pdf",
        "pages": 19,
        "sha256": "e69ff39fc0ea9e08",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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      "footprint": "viewers/footprint.html"
    },
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        "checked": "2026-11-07",
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}