TLC5945PWPR

{
  "slug": "tlc5945pwpr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments LED Drivers, TSSOP-28-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "led drivers",
    "tlc5945pwpr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tlc5945pwpr.kicad_sym",
    "tlc5945pwpr.kicad_mod",
    "tlc5945pwpr.glb",
    "tlc5945pwpr.step",
    "tlc5945pwpr.lbr",
    "docs/hero.png",
    "docs/tlc5945pwpr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tlc5945pwpr-hero.glb",
    "tlc5945pwpr-hero.overlay.json"
  ],
  "component": {
    "mpn": "TLC5945PWPR",
    "manufacturer": "Texas Instruments",
    "package": "TSSOP-28-EP",
    "pin_count": 29,
    "category": "LED Drivers",
    "subcategory": "LED Drivers",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tlc5945",
    "parts": {
      "symbol": "tlc5945pwpr.kicad_sym",
      "footprint": "tlc5945pwpr.kicad_mod",
      "model_3d": "tlc5945pwpr-hero.glb",
      "model_3d_plain": "tlc5945pwpr.glb",
      "model_3d_step": "tlc5945pwpr-etched.step",
      "model_3d_step_plain": "tlc5945pwpr.step",
      "lbr": "tlc5945pwpr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2865415",
      "digikey": "296-21862-2-ND",
      "mouser": "595-TLC5945PWPR"
    },
    "distributor_check": {
      "checked_at": "2026-10-07T02:25:16Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-21862-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-TLC5945PWPR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "2",
        "name": "BLANK",
        "type": "input",
        "description": "Active-high blanking input; forces all OUTn outputs off and resets GS counter when high."
      },
      {
        "number": "3",
        "name": "XLAT",
        "type": "input",
        "description": "Level-triggered latch input; writes data from input shift register to GS or DC register when high, holds data when low."
      },
      {
        "number": "4",
        "name": "SCLK",
        "type": "input",
        "description": "Serial data shift clock."
      },
      {
        "number": "5",
        "name": "SIN",
        "type": "input",
        "description": "Serial data input."
      },
      {
        "number": "6",
        "name": "MODE",
        "type": "input",
        "description": "Mode select input; low for grayscale mode, high for dot correction mode."
      },
      {
        "number": "7",
        "name": "OUT0",
        "type": "output",
        "description": "LED constant-current sink output; 0 mA to 80 mA."
      },
      {
        "number": "8",
        "name": "OUT1",
        "type": "output",
        "description": "LED constant-current sink output; 0 mA to 80 mA."
      },
      {
        "number": "9",
        "name": "OUT2",
        "type": "output",
        "description": "LED constant-current sink output; 0 mA to 80 mA."
      },
      {
        "number": "10",
        "name": "OUT3",
        "type": "output",
        "description": "LED constant-current sink output; 0 mA to 80 mA."
      },
      {
        "number": "11",
        "name": "OUT4",
        "type": "output",
        "description": "LED constant-current sink output; 0 mA to 80 mA."
      },
      {
        "number": "12",
        "name": "OUT5",
        "type": "output",
        "description": "LED constant-current sink output; 0 mA to 80 mA."
      },
      {
        "number": "13",
        "name": "OUT6",
        "type": "output",
        "description": "LED constant-current sink output; 0 mA to 80 mA."
      },
      {
        "number": "14",
        "name": "OUT7",
        "type": "output",
        "description": "LED constant-current sink output; 0 mA to 80 mA."
      },
      {
        "number": "15",
        "name": "OUT8",
        "type": "output",
        "description": "LED constant-current sink output; 0 mA to 80 mA."
      },
      {
        "number": "16",
        "name": "OUT9",
        "type": "output",
        "description": "LED constant-current sink output; 0 mA to 80 mA."
      },
      {
        "number": "17",
        "name": "OUT10",
        "type": "output",
        "description": "LED constant-current sink output; 0 mA to 80 mA."
      },
      {
        "number": "18",
        "name": "OUT11",
        "type": "output",
        "description": "LED constant-current sink output; 0 mA to 80 mA."
      },
      {
        "number": "19",
        "name": "OUT12",
        "type": "output",
        "description": "LED constant-current sink output; 0 mA to 80 mA."
      },
      {
        "number": "20",
        "name": "OUT13",
        "type": "output",
        "description": "LED constant-current sink output; 0 mA to 80 mA."
      },
      {
        "number": "21",
        "name": "OUT14",
        "type": "output",
        "description": "LED constant-current sink output; 0 mA to 80 mA."
      },
      {
        "number": "22",
        "name": "OUT15",
        "type": "output",
        "description": "LED constant-current sink output; 0 mA to 80 mA."
      },
      {
        "number": "23",
        "name": "XERR",
        "type": "tri_state",
        "description": "Open-drain error output; goes low when LED open detection (LOD) or thermal error flag (TEF) is detected."
      },
      {
        "number": "24",
        "name": "SOUT",
        "type": "output",
        "description": "Serial data output."
      },
      {
        "number": "25",
        "name": "GSCLK",
        "type": "input",
        "description": "Reference clock for grayscale PWM control."
      },
      {
        "number": "26",
        "name": "TEST",
        "type": "input",
        "description": "Test pin; must be connected to VCC."
      },
      {
        "number": "27",
        "name": "IREF",
        "type": "bidirectional",
        "description": "Reference current input terminal; external resistor sets maximum output current for all 16 channels."
      },
      {
        "number": "28",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply voltage input; 3.0 V to 5.5 V."
      },
      {
        "number": "29",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "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": [
          "extractor flagged: Thermal pad (exposed die pad) shown in package diagram is not assigned a pin number; its electrical ",
          "exposed pad 29 added from the footprint"
        ],
        "pages_sent": 9,
        "cost_usd": 0.1318,
        "at": "2026-10-07T02:25:01"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tlc5945",
        "pages": 32,
        "sha256": "0172ff7c48182b94",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 29,
        "described": 29,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tlc5945pwpr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.2,
          9.7,
          1.05
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "ff242f1d3be9d09e7f929707a2c5b1ee974a4f882053b04bcdb1cd2cb21223ef",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tlc5945pwpr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.2,
          9.7,
          1.05
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "0f82144adf3258b8e5387ddaff2168efc645615841e7c5f9e312be6c68cc0b4d",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}