TM1929

{
  "slug": "tm1929",
  "version": "0.1.0",
  "type": "component",
  "description": "TM Shenzhen Titan Micro Elec LED Drivers, QSOP-24-150mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "led drivers",
    "tm1929",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tm1929.kicad_sym",
    "tm1929.kicad_mod",
    "tm1929.glb",
    "tm1929.step",
    "tm1929.lbr",
    "docs/hero.png",
    "docs/tm1929-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tm1929-hero.glb",
    "tm1929-hero.overlay.json",
    "tm1929-etched.glb"
  ],
  "component": {
    "mpn": "TM1929",
    "manufacturer": "TM Shenzhen Titan Micro Elec",
    "package": "QSOP-24-150mil",
    "pin_count": 24,
    "category": "LED Drivers",
    "subcategory": "LED Drivers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589835937594040320",
    "parts": {
      "symbol": "tm1929.kicad_sym",
      "footprint": "tm1929.kicad_mod",
      "model_3d": "tm1929-hero.glb",
      "model_3d_plain": "tm1929-etched.glb",
      "model_3d_step": "tm1929-etched.step",
      "model_3d_step_plain": "tm1929.step",
      "lbr": "tm1929.lbr"
    },
    "distributor_links": {
      "lcsc": "C5174517"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T07:48:32Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Power supply negative terminal (ground)."
      },
      {
        "number": "2",
        "name": "SCL",
        "type": "input",
        "description": "I2C clock input, supports up to 400 kHz and needs a pull-up resistor to the supply."
      },
      {
        "number": "3",
        "name": "SDA",
        "type": "bidirectional",
        "description": "I2C data pin; the datasheet lists it as an input, but the chip pulls it low to acknowledge writes, and it needs a pull-up resistor to the supply."
      },
      {
        "number": "4",
        "name": "OUT0",
        "type": "output",
        "description": "Constant-current output channel 0, 3 to 40 mA, with output voltage above 0.7V needed for constant current."
      },
      {
        "number": "5",
        "name": "OUT1",
        "type": "output",
        "description": "Constant-current output channel 1, 3 to 40 mA, with output voltage above 0.7V needed for constant current."
      },
      {
        "number": "6",
        "name": "OUT2",
        "type": "output",
        "description": "Constant-current output channel 2, 3 to 40 mA, with output voltage above 0.7V needed for constant current."
      },
      {
        "number": "7",
        "name": "OUT3",
        "type": "output",
        "description": "Constant-current output channel 3, 3 to 40 mA, with output voltage above 0.7V needed for constant current."
      },
      {
        "number": "8",
        "name": "OUT4",
        "type": "output",
        "description": "Constant-current output channel 4, 3 to 40 mA, with output voltage above 0.7V needed for constant current."
      },
      {
        "number": "9",
        "name": "OUT5",
        "type": "output",
        "description": "Constant-current output channel 5, 3 to 40 mA, with output voltage above 0.7V needed for constant current."
      },
      {
        "number": "10",
        "name": "OUT6",
        "type": "output",
        "description": "Constant-current output channel 6, 3 to 40 mA, with output voltage above 0.7V needed for constant current."
      },
      {
        "number": "11",
        "name": "OUT7",
        "type": "output",
        "description": "Constant-current output channel 7, 3 to 40 mA, with output voltage above 0.7V needed for constant current."
      },
      {
        "number": "12",
        "name": "OUT8",
        "type": "output",
        "description": "Constant-current output channel 8, 3 to 40 mA, with output voltage above 0.7V needed for constant current."
      },
      {
        "number": "13",
        "name": "OUT9",
        "type": "output",
        "description": "Constant-current output channel 9, 3 to 40 mA, with output voltage above 0.7V needed for constant current."
      },
      {
        "number": "14",
        "name": "OUT10",
        "type": "output",
        "description": "Constant-current output channel 10, 3 to 40 mA, with output voltage above 0.7V needed for constant current."
      },
      {
        "number": "15",
        "name": "OUT11",
        "type": "output",
        "description": "Constant-current output channel 11, 3 to 40 mA, with output voltage above 0.7V needed for constant current."
      },
      {
        "number": "16",
        "name": "OUT12",
        "type": "output",
        "description": "Constant-current output channel 12, 3 to 40 mA, with output voltage above 0.7V needed for constant current."
      },
      {
        "number": "17",
        "name": "OUT13",
        "type": "output",
        "description": "Constant-current output channel 13, 3 to 40 mA, with output voltage above 0.7V needed for constant current."
      },
      {
        "number": "18",
        "name": "OUT14",
        "type": "output",
        "description": "Constant-current output channel 14, 3 to 40 mA, with output voltage above 0.7V needed for constant current."
      },
      {
        "number": "19",
        "name": "OUT15",
        "type": "output",
        "description": "Constant-current output channel 15, 3 to 40 mA, with output voltage above 0.7V needed for constant current."
      },
      {
        "number": "20",
        "name": "OUT16",
        "type": "output",
        "description": "Constant-current output channel 16, 3 to 40 mA, with output voltage above 0.7V needed for constant current."
      },
      {
        "number": "21",
        "name": "OUT17",
        "type": "output",
        "description": "Constant-current output channel 17, 3 to 40 mA, with output voltage above 0.7V needed for constant current."
      },
      {
        "number": "22",
        "name": "REXT",
        "type": "input",
        "description": "Constant-current reference feedback pin; a resistor to ground sets the output current, with IOUT = (1.24V / Rext) x 12.5 (1240 Ω gives 12.5 mA)."
      },
      {
        "number": "23",
        "name": "ADDR",
        "type": "input",
        "description": "I2C chip address select: VDD = 4EH, GND = 46H, SCL = 4AH, SDA = 4CH (write only)."
      },
      {
        "number": "24",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply positive terminal, absolute maximum 0 to 5.5V."
      }
    ],
    "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 table gives only the range OUT0~OUT17 on pins 4–21. The pin-by-pin assignment was infe; The datasheet provides one pin-number figure and table with no explicit label tying them to QSOP24. ; The pin table lists SDA as type 'I' (input), but the I2C section says the device drives SDA low duri",
          "2/24 pins cited to the wrong page (name found elsewhere): ['22:REXT@p5', '23:ADDR@p5']"
        ],
        "pages_sent": 11,
        "cost_usd": 0.0634,
        "at": "2026-10-18T07:48:11"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589835937594040320",
        "pages": 11,
        "sha256": "608b27bcdda4653d",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 24,
        "described": 24,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tm1929.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          8.65,
          1.72
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d2244e3f2eff53b6985f22b8c8a44bb319a1973a6a440b2597d6d67813b09338",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tm1929-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          8.65,
          1.72
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c528c717f327d4170ae4d08597ddf66888683bd51c4ab1cbd9fa044ae230e552",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}