UC2842ADTR

{
  "slug": "uc2842adtr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments AC-DC Controllers And Regulators, SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "uc2842adtr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "uc2842adtr.kicad_sym",
    "uc2842adtr.kicad_mod",
    "uc2842adtr.glb",
    "uc2842adtr.step",
    "uc2842adtr.lbr",
    "docs/hero.png",
    "docs/uc2842adtr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "uc2842adtr-hero.glb",
    "uc2842adtr-hero.overlay.json"
  ],
  "component": {
    "mpn": "UC2842ADTR",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-14",
    "pin_count": 14,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://www.ti.com/cn/lit/gpn/uc2845a",
    "parts": {
      "symbol": "uc2842adtr.kicad_sym",
      "footprint": "uc2842adtr.kicad_mod",
      "model_3d": "uc2842adtr-hero.glb",
      "model_3d_plain": "uc2842adtr.glb",
      "model_3d_step": "uc2842adtr-etched.step",
      "model_3d_step_plain": "uc2842adtr.step",
      "lbr": "uc2842adtr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2658356",
      "digikey": "296-UC2842ADTR-ND",
      "mouser": "595-UC2842ADTR"
    },
    "distributor_check": {
      "checked_at": "2026-10-06T02:20:49Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-UC2842ADTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-UC2842ADTR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "COMP",
        "type": "output",
        "description": "Output of the low-impedance 1MHz internal error amplifier (80dB open-loop gain) and input to the peak current limit/PWM comparator, with a maximum sink current of 6mA and no internal current limit."
      },
      {
        "number": "2",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "3",
        "name": "FB",
        "type": "input",
        "description": "Error amplifier input used to close the converter voltage feedback loop for stability."
      },
      {
        "number": "4",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "5",
        "name": "ISENSE",
        "type": "input",
        "description": "Input to the peak current limit/PWM comparator, used with a current-sense resistor, with the maximum peak current-sense signal clamped internally to 1V."
      },
      {
        "number": "6",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "7",
        "name": "RT/CT",
        "type": "input",
        "description": "Internal oscillator input programmed by an external timing resistor RT and capacitor CT, with 470pF to 4.7nF for CT and 5kΩ to 100kΩ for RT recommended."
      },
      {
        "number": "8",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground and gate-driver return path, allowing star grounding to steer gate-driver current away from the signal ground pin GND."
      },
      {
        "number": "9",
        "name": "GND",
        "type": "power_in",
        "description": "Controller signal ground."
      },
      {
        "number": "10",
        "name": "OUTPUT",
        "type": "output",
        "description": "Output of the 1A totem-pole gate driver, sourcing/sinking up to 1A, requiring a gate-driver resistor to limit current."
      },
      {
        "number": "11",
        "name": "VC",
        "type": "power_in",
        "description": "Gate-driver bias input requiring a bias capacitor at least 10 times larger than the gate capacitance of the main switching FET."
      },
      {
        "number": "12",
        "name": "VCC",
        "type": "power_in",
        "description": "Bias supply input requiring a bias capacitor at least 10 times larger than the gate capacitance of the main switching FET."
      },
      {
        "number": "13",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "14",
        "name": "VREF",
        "type": "power_out",
        "description": "5V reference output supplying up to 10mA in normal operation, short-circuit protected at about 100mA, requiring a 1µF high-frequency bypass capacitor."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Table 4-1 SOIC(14) column shows VCC pin location as '13、14' which is ambiguous for a 14-pin package;; Table 4-1 NC (no-connect) list for SOIC(14) shows pins '2、4、6、13' but pins 4 and 6 are identified as; Figure 4-3 (page 3) provides ASCII diagram of SOIC-14 pinout but formatting is unclear regarding exa"
        ],
        "pages_sent": 27,
        "cost_usd": 0.2798,
        "at": "2026-10-06T02:20:33"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/uc2845a",
        "pages": 54,
        "sha256": "1f5ad8805f414728",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    }
  }
}