UCC2893DR

{
  "slug": "ucc2893dr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments DC-DC Controllers, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power supply chip",
    "ucc2893dr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ucc2893dr.kicad_sym",
    "ucc2893dr.kicad_mod",
    "ucc2893dr.glb",
    "ucc2893dr.step",
    "ucc2893dr.lbr",
    "docs/hero.png",
    "docs/ucc2893dr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ucc2893dr-hero.glb",
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  "component": {
    "mpn": "UCC2893DR",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-16",
    "pin_count": 16,
    "category": "Power Supply Chip",
    "subcategory": "DC-DC Controllers",
    "datasheet": "https://www.ti.com/lit/ds/symlink/ucc2893.pdf",
    "parts": {
      "symbol": "ucc2893dr.kicad_sym",
      "footprint": "ucc2893dr.kicad_mod",
      "model_3d": "ucc2893dr-hero.glb",
      "model_3d_plain": "ucc2893dr.glb",
      "model_3d_step": "ucc2893dr-etched.step",
      "model_3d_step_plain": "ucc2893dr.step",
      "lbr": "ucc2893dr.lbr"
    },
    "distributor_links": {
      "lcsc": 702431,
      "digikey": "296-UCC2893DRTR-ND",
      "mouser": "595-UCC2893DR"
    },
    "distributor_check": {
      "checked_at": "2026-10-05T20:06:16Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-UCC2893DRTR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-UCC2893DR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "RTDEL",
        "type": "input",
        "description": "Resistor to GND programs the turn-on delay of OUT and AUX gate drive outputs for active clamp resonant transitions."
      },
      {
        "number": "2",
        "name": "RTON",
        "type": "input",
        "description": "Resistor to GND programs the charge current of the internal timing capacitor, setting oscillator frequency and maximum duty cycle."
      },
      {
        "number": "3",
        "name": "RTOFF",
        "type": "input",
        "description": "Resistor to GND programs the discharge current of the internal timing capacitor, working with RTON to set the switching period and duty cycle."
      },
      {
        "number": "4",
        "name": "VREF",
        "type": "power_in",
        "description": "5-V regulated reference output that supplies up to 5 mA external load, requiring 0.1-1 µF bypass capacitor to GND with capacitor on VDD minimum 10 times greater."
      },
      {
        "number": "5",
        "name": "SYNC",
        "type": "input",
        "description": "Unidirectional synchronization input for the internal oscillator with minimum pulse width of approximately 50 ns and synchronizing frequency higher than the free-running switching frequency."
      },
      {
        "number": "6",
        "name": "GND",
        "type": "power_in",
        "description": "Fundamental analog ground reference for PWM control and programming circuitry, requiring direct connection to PGND at the device with low-impedance external path."
      },
      {
        "number": "7",
        "name": "CS",
        "type": "input",
        "description": "Peak current sense input for current mode control with 0.75 V threshold for UCC2893, requiring RC filter between current sense resistor and pin."
      },
      {
        "number": "8",
        "name": "RSLOPE",
        "type": "input",
        "description": "Resistor to GND programs the slope compensation current amplitude based on the internal timing capacitor voltage during the main switch on-time."
      },
      {
        "number": "9",
        "name": "FB",
        "type": "input",
        "description": "Feedback control voltage input from external error amplifier or optocoupler with useful range of 1.25 V to 4.5 V for pulse width modulation."
      },
      {
        "number": "10",
        "name": "SS/SD",
        "type": "input",
        "description": "Soft-start/shutdown capacitor pin charged by internal current programmed by RTON, with useful range 1.25 V to 4.5 V where the lower value between SS/SD and FB is selected."
      },
      {
        "number": "11",
        "name": "PGND",
        "type": "power_in",
        "description": "High-current power ground return for OUT and AUX drivers, requiring external connection to GND with minimal loop area and separate low-current ground plane."
      },
      {
        "number": "12",
        "name": "AUX",
        "type": "output",
        "description": "High-current gate driver output for auxiliary clamp MOSFET with 2-A source turn-on and 2-A sink turn-off current capability, using active-high logic for N-channel switches."
      },
      {
        "number": "13",
        "name": "OUT",
        "type": "output",
        "description": "High-current gate driver output for main N-channel MOSFET with 2-A source turn-on and 2-A sink turn-off current capability, using active-high logic with 10-kΩ resistor to PGND recommended."
      },
      {
        "number": "14",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply input with 12.7 V UVLO turn-on threshold and 8.0 V minimum operating voltage, requiring 1-µF bypass capacitor to PGND and larger energy storage capacitor."
      },
      {
        "number": "15",
        "name": "LINEUV",
        "type": "input",
        "description": "Line undervoltage monitor input with 1.27 V threshold and user-programmable hysteresis via external resistor divider controlled by RDEL-programmed current source."
      },
      {
        "number": "16",
        "name": "VIN",
        "type": "power_in",
        "description": "High-voltage input to internal P-channel JFET start-up device (UCC2891/3 only) providing approximately 15 mA charge current to VDD with up to 110 V maximum rating, turning off above 13.5 V."
      }
    ],
    "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": 16,
        "cost_usd": 0.1857,
        "at": "2026-10-05T20:05:54"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/ucc2893.pdf",
        "pages": 41,
        "sha256": "0b123b68deef52c5",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
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  }
}