UC2637DWTR

{
  "schema_version": 1,
  "type": "component",
  "slug": "uc2637dwtr",
  "title": "UC2637DWTR",
  "brief": "Texas Instruments Brushed DC Motor Drivers, SOIC-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "motor driver ics",
    "uc2637dwtr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "UC2637DWTR",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-20",
    "pin_count": 20,
    "category": "Motor Driver ICs",
    "subcategory": "Brushed DC Motor Drivers",
    "datasheet": "https://www.ti.com/cn/lit/gpn/uc3637",
    "parts": {
      "symbol": "uc2637dwtr.kicad_sym",
      "footprint": "uc2637dwtr.kicad_mod",
      "model_3d": "uc2637dwtr-etched.glb",
      "model_3d_plain": "uc2637dwtr.glb",
      "model_3d_step": "uc2637dwtr-etched.step",
      "model_3d_step_plain": "uc2637dwtr.step",
      "lbr": "uc2637dwtr.lbr"
    },
    "distributor_links": {
      "lcsc": "C3681183",
      "digikey": "UC2637DWTR-ND",
      "mouser": "595-UC2637DWTR"
    },
    "distributor_check": {
      "checked_at": "2026-09-26T23:17:55Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "UC2637DWTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-UC2637DWTR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "+VTH",
        "type": "input",
        "description": "Upper oscillator threshold voltage, accepting +VS-2V to -VS+2V input range with up to 10µA bias current."
      },
      {
        "number": "2",
        "name": "CT",
        "type": "passive",
        "description": "External timing capacitor connection for oscillator frequency adjustment."
      },
      {
        "number": "3",
        "name": "-VTH",
        "type": "input",
        "description": "Lower oscillator threshold voltage, accepting +VS-2V to -VS+2V input range with up to 0.5µA bias current."
      },
      {
        "number": "4",
        "name": "AOUT",
        "type": "output",
        "description": "PWM output driver A, sourcing/sinking 100mA steady-state or 500mA pulsed maximum, output voltage 12-13.5V high or -14.5 to -13V low."
      },
      {
        "number": "5",
        "name": "-VS",
        "type": "power_in",
        "description": "Negative supply voltage input, rated -2.5V to -20V absolute maximum."
      },
      {
        "number": "6",
        "name": "N/C",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "7",
        "name": "+VS",
        "type": "power_in",
        "description": "Positive supply voltage input, rated +2.5V to +20V absolute maximum."
      },
      {
        "number": "8",
        "name": "BOUT",
        "type": "output",
        "description": "PWM output driver B, sourcing/sinking 100mA steady-state or 500mA pulsed maximum, output voltage 12-13.5V high or -14.5 to -13V low."
      },
      {
        "number": "9",
        "name": "+BIN",
        "type": "input",
        "description": "Positive input to PWM comparator B for pulse width control, common mode range -VS+1V to +VS-2V."
      },
      {
        "number": "10",
        "name": "-BIN",
        "type": "input",
        "description": "Negative input to PWM comparator B for pulse width control, common mode range -VS+1V to +VS-2V."
      },
      {
        "number": "11",
        "name": "-AIN",
        "type": "input",
        "description": "Negative input to PWM comparator A for pulse width control, common mode range -VS+1V to +VS-2V."
      },
      {
        "number": "12",
        "name": "+AIN",
        "type": "input",
        "description": "Positive input to PWM comparator A for pulse width control, common mode range -VS+1V to +VS-2V."
      },
      {
        "number": "13",
        "name": "+C/L",
        "type": "input",
        "description": "Positive current limit input for pulse-by-pulse current limiting, 200mV offset threshold at 25°C, common mode -VS to +VS-3V."
      },
      {
        "number": "14",
        "name": "-C/L",
        "type": "input",
        "description": "Negative current limit input for pulse-by-pulse current limiting, 200mV offset threshold at 25°C, common mode -VS to +VS-3V."
      },
      {
        "number": "15",
        "name": "SHUTDOWN",
        "type": "input",
        "description": "Shutdown control input with -2.5V temperature-compensated threshold; pulling below this disables output drivers with 40mV hysteresis."
      },
      {
        "number": "16",
        "name": "N/C",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "17",
        "name": "+E/A",
        "type": "output",
        "description": "Error amplifier output, sourcing 5-11mA or sinking 20-50mA maximum, output voltage 13-13.6V high or -14.8 to -13V low."
      },
      {
        "number": "18",
        "name": "-E/A",
        "type": "passive",
        "description": "Oscillator charging current terminal for internal current source, maximum charging current -2mA absolute maximum."
      },
      {
        "number": "19",
        "name": "E/A OUTPUT",
        "type": "output",
        "description": "Error amplifier output connection in SOIC-20 variant."
      },
      {
        "number": "20",
        "name": "ISET",
        "type": "passive",
        "description": "Oscillator current setting terminal, internally driven by buffered +VTH voltage for frequency control."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-4-6",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin 17 labeled '+E/A' but absolute max ratings specify 'Error Amplifier Output Current'; pins 17 and; Pin 18 labeled '-E/A' (suggesting error amplifier related) but absolute max ratings specify 'Oscilla"
        ],
        "pages_sent": 19,
        "cost_usd": 0.4268,
        "at": "2026-09-26T23:17:35"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/uc3637",
        "pages": 19,
        "sha256": "50b7541e6f18a862",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 20,
        "described": 20,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOIC-20",
      "Category": "Motor Driver ICs",
      "Pins": "20"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "uc2637dwtr"
  ],
  "discovery_pitch": "UC2637DWTR (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "uc2637dwtr.kicad_sym",
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    "uc2637dwtr.glb",
    "uc2637dwtr.step",
    "uc2637dwtr.lbr",
    "docs/hero.png",
    "docs/uc2637dwtr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  }
}