UCC28513DWR

{
  "slug": "ucc28513dwr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments AC-DC Controllers And Regulators, SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "ucc28513dwr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
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    "ucc28513dwr.step",
    "ucc28513dwr.lbr",
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    "docs/ucc28513dwr-datasheet.pdf",
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  "component": {
    "mpn": "UCC28513DWR",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-20-300mil",
    "pin_count": 20,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://www.ti.com/cn/lit/gpn/ucc28512",
    "parts": {
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      "footprint": "ucc28513dwr.kicad_mod",
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      "model_3d_plain": "ucc28513dwr.glb",
      "model_3d_step": "ucc28513dwr-etched.step",
      "model_3d_step_plain": "ucc28513dwr.step",
      "lbr": "ucc28513dwr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2878425",
      "digikey": "2156-UCC28513DWR-ND",
      "mouser": "595-UCC28513DWR"
    },
    "distributor_check": {
      "checked_at": "2026-10-11T01:21:33Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "2156-UCC28513DWR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-UCC28513DWR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VAOUT",
        "type": "bidirectional",
        "description": "Output of the PFC transconductance voltage amplifier, operating between GND and 5.5 V maximum, with the zero power detect comparator turning off the PFC gate drive when it falls below 0.33 V."
      },
      {
        "number": "2",
        "name": "RT",
        "type": "input",
        "description": "A resistor between RT and GND programs the oscillator frequency measured at CT_BUFF, with a recommended range of 45 kΩ to 500 kΩ for 600 kHz to 65 kHz, and the pin is nominally 3 V DC and should not have a capacitor added."
      },
      {
        "number": "3",
        "name": "VSENSE",
        "type": "input",
        "description": "Inverting input to the PFC transconductance voltage amplifier, which also feeds the OVP, ENABLE and UVLO2 comparators."
      },
      {
        "number": "4",
        "name": "D_MAX",
        "type": "input",
        "description": "Positive input that sets the PWM maximum duty cycle, linearly related between 0.09 and 0.90, and setting it below 0.7 V sets DMAX to 0."
      },
      {
        "number": "5",
        "name": "CT_BUFF",
        "type": "output",
        "description": "Internally buffered 4-V-amplitude PWM oscillator ramp output that can drive a typical 500-µA resistive load for slope compensation."
      },
      {
        "number": "6",
        "name": "GND",
        "type": "power_in",
        "description": "Analog signal ground to which all voltages are referenced, with PWRGND required to be externally connected to this pin and VCC and VREF bypass capacitors returned here."
      },
      {
        "number": "7",
        "name": "VERR",
        "type": "input",
        "description": "Feedback error voltage input for the PWM stage, clamped to a maximum of 3 V, able to demand 100% duty cycle at GT2, with a typical 10 µA pull-up current."
      },
      {
        "number": "8",
        "name": "ISENSE2",
        "type": "input",
        "description": "Input for PWM stage current sense and peak current limit, with the peak limit threshold set to 1.3 V for peak current mode control."
      },
      {
        "number": "9",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive chip supply that should be held between 12 V and 17 V for normal operation with at least 20 mA available, bypassed directly to GND with a 0.1 µF or larger ceramic capacitor."
      },
      {
        "number": "10",
        "name": "GT2",
        "type": "output",
        "description": "PWM stage gate drive output, a totem-pole MOSFET driver with 2-A peak source and 3-A peak sink current."
      },
      {
        "number": "11",
        "name": "PWRGND",
        "type": "power_in",
        "description": "Ground for the GT1 and GT2 output drivers, which should be tied to GND externally via a single Kelvin connection."
      },
      {
        "number": "12",
        "name": "GT1",
        "type": "output",
        "description": "PFC stage gate drive output, a totem-pole MOSFET driver with 2-A peak source and 3-A peak sink current, disabled unless VCC is outside the UVLO region and VREF is on."
      },
      {
        "number": "13",
        "name": "SS2",
        "type": "input",
        "description": "Soft-start capacitor pin for the PWM stage, charged by an internal 10.5-µA source to 3 V and quickly discharged to ground on a disable command or UVLO2 dropout."
      },
      {
        "number": "14",
        "name": "PKLMT",
        "type": "input",
        "description": "Voltage input to the PFC peak current limit comparator, with the threshold at 0 V, shifted from the PFC sense resistor voltage by a divider from VREF."
      },
      {
        "number": "15",
        "name": "CAOUT",
        "type": "output",
        "description": "Output of the PFC current sense amplifier, internally connected to the PFC PWM comparator input, which can swing close to GND for maximum duty cycle and above the PFC ramp peak for zero duty cycle."
      },
      {
        "number": "16",
        "name": "ISENSE1",
        "type": "input",
        "description": "Non-inverting input to the PFC current amplifier, connected through a resistor to the grounded side of the PFC current sense resistor."
      },
      {
        "number": "17",
        "name": "MOUT",
        "type": "bidirectional",
        "description": "High-impedance PFC multiplier current output internally connected to the current amplifier inverting input, with the PFC power range set by a resistor to the non-grounded end of the sense resistor."
      },
      {
        "number": "18",
        "name": "IAC",
        "type": "input",
        "description": "Multiplier current input that senses the rectified AC line voltage, with a recommended maximum IAC current of 500 µA."
      },
      {
        "number": "19",
        "name": "VFF",
        "type": "input",
        "description": "Voltage feedforward pin that sources an IAC/2 current to an external single-pole R/C filter to GND, with VFF set to 1.4 V at low line."
      },
      {
        "number": "20",
        "name": "VREF",
        "type": "power_out",
        "description": "Precision 7.5-V reference output that can deliver over 10 mA, is current limited to 25 mA, and should be bypassed with a 0.1 µF to 10 µF ceramic capacitor."
      }
    ],
    "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 is a family datasheet (UCC28510 series, UCC2851x). The terminal table on page 7 and th; KiCad ERC types are mapped by function, not copied from the datasheet. VCC is listed as 'I' in the d; Each description is condensed to one sentence from the datasheet's pin descriptions and includes the"
        ],
        "pages_sent": 11,
        "cost_usd": 0.0753,
        "at": "2026-10-11T01:21:15"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/ucc28512",
        "pages": 42,
        "sha256": "3a9542f6a46c942b",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 20,
        "described": 20,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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}