UCC3808APWTR-2

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  "schema_version": 1,
  "type": "component",
  "slug": "ucc3808apwtr-2",
  "title": "UCC3808APWTR-2",
  "brief": "Texas Instruments AC-DC Controllers And Regulators, TSSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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  "component": {
    "mpn": "UCC3808APWTR-2",
    "manufacturer": "Texas Instruments",
    "package": "TSSOP-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://www.ti.com/cn/lit/gpn/ucc3808a-2",
    "parts": {
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      "lbr": "ucc3808apwtr-2.lbr"
    },
    "distributor_links": {
      "lcsc": "C2658510",
      "digikey": "296-UCC3808APWTR-2TR-ND",
      "mouser": "595-UCC3808APWTR-2"
    },
    "distributor_check": {
      "checked_at": "2026-10-07T08:35:10Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-UCC3808APWTR-2TR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-UCC3808APWTR-2",
        "status": "found"
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    },
    "pins": [
      {
        "number": "1",
        "name": "OUTA",
        "type": "output",
        "description": "Alternating high-current output stage providing 500mA peak pull current and 1A peak sink current for power MOSFET gate drive; switches at half oscillator frequency with 60-200ns dead time between outputs and low-impedance overshoot/undershoot clamping."
      },
      {
        "number": "2",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply input; bypass to GND with 1µF decoupling ceramic capacitor placed close to package plus electrolytic storage capacitor; operating range 5-14V for UCC3808A-2."
      },
      {
        "number": "3",
        "name": "COMP",
        "type": "output",
        "description": "Error amplifier output and PWM comparator input; 2MHz bandwidth operational amplifier with low output impedance capable of sourcing and sinking current; includes internal current limiting and full-cycle soft-start via voltage clamping."
      },
      {
        "number": "4",
        "name": "FB",
        "type": "input",
        "description": "Error amplifier non-inverting input; maintain minimal lead length and stray capacitance for optimal stability and noise immunity."
      },
      {
        "number": "5",
        "name": "CS",
        "type": "input",
        "description": "Current sense input for peak current and overcurrent comparator with 1.9-2.5V/V gain; internal MOSFET discharges external filter capacitor during oscillator dead time; 0.7-0.8V overcurrent threshold triggers soft-start cycle."
      },
      {
        "number": "6",
        "name": "RC",
        "type": "output",
        "description": "Oscillator frequency programming pin generating sawtooth output; connect external timing resistor (10kΩ-200kΩ recommended) from VDD and timing capacitor (100pF-1000pF recommended) to GND; frequency ≈ 1.41/(√RC)."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Reference and power ground for all functions; use low-impedance PCB ground plane due to high current and high frequency operation of this device."
      },
      {
        "number": "8",
        "name": "OUTB",
        "type": "output",
        "description": "Alternating high-current output stage providing 500mA peak pull current and 1A peak sink current for power MOSFET gate drive; switches at half oscillator frequency with 60-200ns dead time between outputs and low-impedance overshoot/undershoot clamping."
      }
    ],
    "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": [],
        "pages_sent": 27,
        "cost_usd": 0.1893,
        "at": "2026-10-07T08:34:57"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/ucc3808a-2",
        "pages": 27,
        "sha256": "a8e88286e9a900bf",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
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    },
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      "footprint": "viewers/footprint.html"
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "cf28a51742b2e31065e201d1b313207140cbfb49062efd938788f7a310d02738",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
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        "sha256": "7642dd2de8e4ff19fbdf29ac3c8c9798d37454b50408a3f997920f6783102488",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "TSSOP-8",
      "Category": "Power Management (PMIC)",
      "Pins": "8"
    }
  },
  "variants": [],
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  "discovery_triggers": [
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  "discovery_pitch": "UCC3808APWTR-2 (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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