UC2902N

{
  "slug": "uc2902n",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Power Management - Specialized, PDIP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "uc2902n",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "uc2902n.kicad_sym",
    "uc2902n.kicad_mod",
    "uc2902n.glb",
    "uc2902n.step",
    "uc2902n.lbr",
    "docs/hero.png",
    "docs/uc2902n-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "uc2902n-hero.glb",
    "uc2902n-hero.overlay.json"
  ],
  "component": {
    "mpn": "UC2902N",
    "manufacturer": "Texas Instruments",
    "package": "PDIP-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "Power Management - Specialized",
    "datasheet": "https://www.ti.com/cn/lit/gpn/uc2902",
    "parts": {
      "symbol": "uc2902n.kicad_sym",
      "footprint": "uc2902n.kicad_mod",
      "model_3d": "uc2902n-hero.glb",
      "model_3d_plain": "uc2902n.glb",
      "model_3d_step": "uc2902n-etched.step",
      "model_3d_step_plain": "uc2902n.step",
      "lbr": "uc2902n.lbr"
    },
    "distributor_links": {
      "lcsc": "C1575075",
      "digikey": "2156-UC2902N-ND",
      "mouser": "595-UC2902N"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T14:43:11Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "2156-UC2902N-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-UC2902N",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Local power supply return and signal ground; all voltages are referenced to GND."
      },
      {
        "number": "2",
        "name": "SENSE",
        "type": "input",
        "description": "Inverting input of the current sense amplifier, rated -5 V to 5 V absolute input voltage range."
      },
      {
        "number": "3",
        "name": "ADJ",
        "type": "output",
        "description": "Current output of the adjust amplifier circuit (NPN collector), absolute output current -1 mA to 30 mA."
      },
      {
        "number": "4",
        "name": "ADJR",
        "type": "output",
        "description": "Adjust amplifier range set (NPN emitter), absolute input voltage -0.3 V to 4 V; a resistor to GND sets the adjust current (about 360 Ω gives about 5 mA in the typical application)."
      },
      {
        "number": "5",
        "name": "COMP",
        "type": "bidirectional",
        "description": "Output of the error amplifier and input of the adjust amplifier, absolute input voltage -0.3 V to 4 V."
      },
      {
        "number": "6",
        "name": "SHARE−",
        "type": "input",
        "description": "Reference for the SHARE+ pin and the system ground connection of the share bus, absolute voltage -0.3 V to 10 V."
      },
      {
        "number": "7",
        "name": "SHARE+",
        "type": "bidirectional",
        "description": "Positive input from the share bus or drive-to-share bus, absolute voltage -0.3 V to 10 V and output current -100 mA to 10 mA."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Local power supply (positive), operating range 2.7 V to 20 V with absolute maximum -0.3 V to 20 V."
      }
    ],
    "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 datasheet terminal table lists ADJ as type 'I' but describes it as a current output (NPN collect; Datasheet types are 'O' for ADJR and 'I/O' for COMP and SHARE+; mapped to output and bidirectional a; SHARE− is listed as type 'I' in the terminal table; mapped to input. The description also notes the "
        ],
        "pages_sent": 17,
        "cost_usd": 0.069,
        "at": "2026-10-08T14:42:55"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/uc2902",
        "pages": 17,
        "sha256": "6652b47563ad672c",
        "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": [
      {
        "file": "uc2902n.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": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "uc2902n-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": [
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        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "ef33f604a4d3be83514547af28595b79f4c377275a609de6c7abc7334be316c1",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}