TM1628L

{
  "slug": "tm1628l",
  "version": "0.1.0",
  "type": "component",
  "description": "TM Shenzhen Titan Micro Elec LED Drivers, SOP-28. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "led drivers",
    "tm1628l",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tm1628l.kicad_sym",
    "tm1628l.kicad_mod",
    "tm1628l.glb",
    "tm1628l.step",
    "tm1628l.lbr",
    "docs/hero.png",
    "docs/tm1628l-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tm1628l-hero.glb",
    "tm1628l-hero.overlay.json",
    "tm1628l-etched.glb"
  ],
  "component": {
    "mpn": "TM1628L",
    "manufacturer": "TM Shenzhen Titan Micro Elec",
    "package": "SOP-28",
    "pin_count": 28,
    "category": "LED Drivers",
    "subcategory": "LED Drivers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590440926310408192",
    "parts": {
      "symbol": "tm1628l.kicad_sym",
      "footprint": "tm1628l.kicad_mod",
      "model_3d": "tm1628l-hero.glb",
      "model_3d_plain": "tm1628l-etched.glb",
      "model_3d_step": "tm1628l-etched.step",
      "model_3d_step_plain": "tm1628l.step",
      "lbr": "tm1628l.lbr"
    },
    "distributor_links": {
      "lcsc": "C5174547"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T01:53:00Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "NC",
        "type": "unconnected",
        "description": "Empty pin with no internal connection; the datasheet lists it as 内部无连线 (no internal wiring)."
      },
      {
        "number": "2",
        "name": "DIO",
        "type": "bidirectional",
        "description": "Serial data input/output that samples data on the CLK rising edge and outputs data on the CLK falling edge, LSB first, with an internal 20K pull-up resistor."
      },
      {
        "number": "3",
        "name": "CLK",
        "type": "input",
        "description": "Serial clock input that reads data on the rising edge and outputs data on the falling edge, with an internal 20K pull-up resistor."
      },
      {
        "number": "4",
        "name": "STB",
        "type": "input",
        "description": "Chip-select input that initializes the serial interface on its falling edge, causes the first byte after STB goes low to be treated as a command, and causes CLK to be ignored while STB is high; it has an internal 20K pull-up resistor."
      },
      {
        "number": "5",
        "name": "K1",
        "type": "input",
        "description": "Key-scan data input whose value is latched after the display cycle ends."
      },
      {
        "number": "6",
        "name": "K2",
        "type": "input",
        "description": "Key-scan data input whose value is latched after the display cycle ends."
      },
      {
        "number": "7",
        "name": "VDD",
        "type": "power_in",
        "description": "Logic power supply input; the normal operating range is 3 V to 5.5 V with 5 V typical."
      },
      {
        "number": "8",
        "name": "SEG1/KS1",
        "type": "output",
        "description": "Segment output that doubles as key-scan output, with a P-channel open-drain output stage and an LED segment drive current limit of -50 mA."
      },
      {
        "number": "9",
        "name": "SEG2/KS2",
        "type": "output",
        "description": "Segment output that doubles as key-scan output, with a P-channel open-drain output stage and an LED segment drive current limit of -50 mA."
      },
      {
        "number": "10",
        "name": "SEG3/KS3",
        "type": "output",
        "description": "Segment output that doubles as key-scan output, with a P-channel open-drain output stage and an LED segment drive current limit of -50 mA."
      },
      {
        "number": "11",
        "name": "SEG4/KS4",
        "type": "output",
        "description": "Segment output that doubles as key-scan output, with a P-channel open-drain output stage and an LED segment drive current limit of -50 mA."
      },
      {
        "number": "12",
        "name": "SEG5/KS5",
        "type": "output",
        "description": "Segment output that doubles as key-scan output, with a P-channel open-drain output stage and an LED segment drive current limit of -50 mA."
      },
      {
        "number": "13",
        "name": "SEG6/KS6",
        "type": "output",
        "description": "Segment output that doubles as key-scan output, with a P-channel open-drain output stage and an LED segment drive current limit of -50 mA."
      },
      {
        "number": "14",
        "name": "SEG7/KS7",
        "type": "output",
        "description": "Segment output that doubles as key-scan output, with a P-channel open-drain output stage and an LED segment drive current limit of -50 mA."
      },
      {
        "number": "15",
        "name": "SEG8/KS8",
        "type": "output",
        "description": "Segment output that doubles as key-scan output, with a P-channel open-drain output stage and an LED segment drive current limit of -50 mA."
      },
      {
        "number": "16",
        "name": "SEG9/KS9",
        "type": "output",
        "description": "Segment output that doubles as key-scan output, with a P-channel open-drain output stage and an LED segment drive current limit of -50 mA."
      },
      {
        "number": "17",
        "name": "SEG10/KS10",
        "type": "output",
        "description": "Segment output that doubles as key-scan output, with a P-channel open-drain output stage and an LED segment drive current limit of -50 mA."
      },
      {
        "number": "18",
        "name": "GRID5/SEG14",
        "type": "output",
        "description": "Multiplexed segment/grid output that serves as GRID5 or SEG14, with a grid sink current limit of 200 mA."
      },
      {
        "number": "19",
        "name": "GRID6/SEG13",
        "type": "output",
        "description": "Multiplexed segment/grid output that serves as GRID6 or SEG13, with a grid sink current limit of 200 mA."
      },
      {
        "number": "20",
        "name": "GRID7/SEG12",
        "type": "output",
        "description": "Multiplexed segment/grid output that serves as GRID7 or SEG12, with a grid sink current limit of 200 mA."
      },
      {
        "number": "21",
        "name": "VDD",
        "type": "power_in",
        "description": "Logic power supply input; the normal operating range is 3 V to 5.5 V with 5 V typical."
      },
      {
        "number": "22",
        "name": "GND",
        "type": "power_in",
        "description": "Logic ground that must be connected to system ground."
      },
      {
        "number": "23",
        "name": "GRID4",
        "type": "output",
        "description": "Digit output with an N-channel open-drain output stage and a grid sink current limit of 200 mA."
      },
      {
        "number": "24",
        "name": "GRID3",
        "type": "output",
        "description": "Digit output with an N-channel open-drain output stage and a grid sink current limit of 200 mA."
      },
      {
        "number": "25",
        "name": "GND",
        "type": "power_in",
        "description": "Logic ground that must be connected to system ground."
      },
      {
        "number": "26",
        "name": "GRID2",
        "type": "output",
        "description": "Digit output with an N-channel open-drain output stage and a grid sink current limit of 200 mA."
      },
      {
        "number": "27",
        "name": "GRID1",
        "type": "output",
        "description": "Digit output with an N-channel open-drain output stage and a grid sink current limit of 200 mA."
      },
      {
        "number": "28",
        "name": "GND",
        "type": "power_in",
        "description": "Logic ground that must be connected to system ground."
      }
    ],
    "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 page 1 pin diagram text is scrambled (pin labels and numbers are out of order in the extraction); The datasheet gives SOP28 as the only package, so this pinout applies to the SOP-28 variant. No othe; The datasheet does not state a pin type for SEG/KS and GRID pins beyond open-drain output stages; th"
        ],
        "pages_sent": 18,
        "cost_usd": 0.0812,
        "at": "2026-10-19T01:52:43"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590440926310408192",
        "pages": 18,
        "sha256": "b83dc883c47e4b9a",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 28,
        "described": 28,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tm1628l.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          11.636,
          18.16,
          2.666
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "ecc34510e8f74b6103a72c2f24133ad80006c738972a56531d1221b277fcecdb",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tm1628l-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "036fa08d479376eeaf12b0952582aea662f9f4807f6eac21cd80ef1c10490494",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}