TM1646-QSOP24

{
  "schema_version": 1,
  "type": "component",
  "slug": "tm1646-qsop24",
  "title": "TM1646-QSOP24",
  "brief": "TM(Shenzhen Titan Micro Elec) LED Drivers, QSOP-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "led drivers",
    "tm1646-qsop24",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "TM1646-QSOP24",
    "manufacturer": "TM(Shenzhen Titan Micro Elec)",
    "package": "QSOP-24",
    "pin_count": 24,
    "category": "LED Drivers",
    "subcategory": "LED Drivers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/8c1add1cd0ecf44facc6a68f442a115e.pdf",
    "parts": {
      "symbol": "tm1646-qsop24.kicad_sym",
      "footprint": "tm1646-qsop24.kicad_mod",
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      "model_3d_plain": "tm1646-qsop24-etched.glb",
      "model_3d_step": "tm1646-qsop24-etched.step",
      "model_3d_step_plain": "tm1646-qsop24.step",
      "lbr": "tm1646-qsop24.lbr"
    },
    "distributor_links": {
      "lcsc": "C22767314"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T03:06:17Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "DA5",
        "type": "output",
        "description": "Group A drive output pin with P-channel and N-channel open-drain outputs."
      },
      {
        "number": "2",
        "name": "DA4",
        "type": "output",
        "description": "Group A drive output pin with P-channel and N-channel open-drain outputs."
      },
      {
        "number": "3",
        "name": "DA3",
        "type": "output",
        "description": "Group A drive output pin with P-channel and N-channel open-drain outputs."
      },
      {
        "number": "4",
        "name": "DA2",
        "type": "output",
        "description": "Group A drive output pin with P-channel and N-channel open-drain outputs."
      },
      {
        "number": "5",
        "name": "DA1",
        "type": "output",
        "description": "Group A drive output pin with P-channel and N-channel open-drain outputs."
      },
      {
        "number": "6",
        "name": "DA0",
        "type": "output",
        "description": "Group A drive output pin with P-channel and N-channel open-drain outputs."
      },
      {
        "number": "7",
        "name": "VDD",
        "type": "power_in",
        "description": "Logic power supply positive connection, recommended 3.0 V to 5.5 V."
      },
      {
        "number": "8",
        "name": "DIN",
        "type": "input",
        "description": "Serial data input, data changes while SCLK is low and is transferred while SCLK is high."
      },
      {
        "number": "9",
        "name": "SCLK",
        "type": "input",
        "description": "Clock input, data is clocked in on the rising edge."
      },
      {
        "number": "10",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection; not listed in the pin description table and labelled NC in the pin diagram."
      },
      {
        "number": "11",
        "name": "GND",
        "type": "power_in",
        "description": "Logic ground, connect to system ground."
      },
      {
        "number": "12",
        "name": "VDD",
        "type": "power_in",
        "description": "Logic power supply positive connection, recommended 3.0 V to 5.5 V."
      },
      {
        "number": "13",
        "name": "DB8",
        "type": "output",
        "description": "Group B drive output pin with P-channel and N-channel open-drain outputs."
      },
      {
        "number": "14",
        "name": "DB7",
        "type": "output",
        "description": "Group B drive output pin with P-channel and N-channel open-drain outputs."
      },
      {
        "number": "15",
        "name": "DB6",
        "type": "output",
        "description": "Group B drive output pin with P-channel and N-channel open-drain outputs."
      },
      {
        "number": "16",
        "name": "DB5",
        "type": "output",
        "description": "Group B drive output pin with P-channel and N-channel open-drain outputs."
      },
      {
        "number": "17",
        "name": "DB4",
        "type": "output",
        "description": "Group B drive output pin with P-channel and N-channel open-drain outputs."
      },
      {
        "number": "18",
        "name": "DB3",
        "type": "output",
        "description": "Group B drive output pin with P-channel and N-channel open-drain outputs."
      },
      {
        "number": "19",
        "name": "DB2",
        "type": "output",
        "description": "Group B drive output pin with P-channel and N-channel open-drain outputs."
      },
      {
        "number": "20",
        "name": "DB1",
        "type": "output",
        "description": "Group B drive output pin with P-channel and N-channel open-drain outputs."
      },
      {
        "number": "21",
        "name": "DB0",
        "type": "output",
        "description": "Group B drive output pin with P-channel and N-channel open-drain outputs."
      },
      {
        "number": "22",
        "name": "DA8",
        "type": "output",
        "description": "Group A drive output pin with P-channel and N-channel open-drain outputs; stays as N-channel open-drain output when display is off."
      },
      {
        "number": "23",
        "name": "DA7",
        "type": "output",
        "description": "Group A drive output pin with P-channel and N-channel open-drain outputs."
      },
      {
        "number": "24",
        "name": "DA6",
        "type": "output",
        "description": "Group A drive output pin with P-channel and N-channel open-drain outputs."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
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        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The pin table gives ranges (DA0~DA8 = pins 6-1 and 24-22; DB0~DB8 = 21-13) but not an explicit per-p; Pin 10 is not in the pin description table. It is treated as NC by elimination and from an NC label ; The datasheet text says SOP24 in the overview but lists QSOP24-150 and QFN24 as packages. The pinout"
        ],
        "pages_sent": 14,
        "cost_usd": 0.1212,
        "at": "2026-10-23T03:05:54"
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        "pages": 14,
        "sha256": "0c53ca61244b4a8e",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 24,
        "described": 24,
        "cites_pages": true,
        "refuses_to_fabricate": true
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
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  "metadata": {
    "specs": {
      "Manufacturer": "TM(Shenzhen Titan Micro Elec)",
      "Package": "QSOP-24",
      "Category": "LED Drivers",
      "Pins": "24"
    },
    "characteristics": {
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          "name": "Storage temperature",
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          "max": -10.4,
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          "name": "Output sink current",
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          "kind": "electrical",
          "unit": "μA",
          "min": -1,
          "typ": null,
          "max": 1,
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          "source_page": 3,
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        {
          "name": "High-level input voltage SCLK, DIN",
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          "kind": "electrical",
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          "name": "Low-level input voltage SCLK, DIN",
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          "conditions": "VDD=3.0~3.6V; max 0.3 VDD",
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        {
          "name": "Hysteresis voltage SCLK, DIN",
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          "name": "Dynamic supply current",
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          "kind": "electrical",
          "unit": "mA",
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          "max": 1,
          "conditions": "No load, display off; VDD=3.0~3.6V",
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          "min": -22,
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          "name": "Output sink current",
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          "name": "Input current",
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          "kind": "electrical",
          "unit": "μA",
          "min": -1,
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          "name": "High-level input voltage SCLK, DIN",
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          "kind": "electrical",
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          "conditions": "VDD=4.5~5.5V; min 0.7 VDD",
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          "name": "Low-level input voltage SCLK, DIN",
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          "name": "Hysteresis voltage SCLK, DIN",
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          "source_page": 4,
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        {
          "name": "Dynamic supply current",
          "symbol": "IDDdyn",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "No load, display off; VDD=4.5~5.5V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Oscillation frequency",
          "symbol": "fosc",
          "kind": "electrical",
          "unit": "KHz",
          "min": null,
          "typ": 300,
          "max": null,
          "conditions": "VDD=3.3V",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Propagation delay time tplz",
          "symbol": "tplz",
          "kind": "timing",
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          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "CLK → DIN; CL=15pF, RL=10K",
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          "name": "Rise time",
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          "kind": "timing",
          "unit": "μs",
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          "max": 2,
          "conditions": "CL=300pF, A0/B0~A8/B8",
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          "name": "Fall time",
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          "kind": "timing",
          "unit": "μs",
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          "typ": null,
          "max": 120,
          "conditions": "CL=300pF, An, Bn",
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          "name": "Maximum clock frequency",
          "symbol": "Fmax",
          "kind": "timing",
          "unit": "MHz",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "Duty cycle 50%",
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        {
          "name": "Input capacitance",
          "symbol": "CI",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": null,
          "max": 15,
          "conditions": "",
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          "name": "Clock pulse width",
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          "min": 400,
          "typ": null,
          "max": null,
          "conditions": "VDD=3.0~5.5V",
          "source_page": 5,
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        {
          "name": "Strobe pulse width",
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          "kind": "timing",
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          "typ": null,
          "max": null,
          "conditions": "VDD=3.0~5.5V",
          "source_page": 5,
          "source": "datasheet"
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          "name": "Data setup time",
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          "kind": "timing",
          "unit": "ns",
          "min": 100,
          "typ": null,
          "max": null,
          "conditions": "VDD=3.0~5.5V",
          "source_page": 5,
          "source": "datasheet"
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        {
          "name": "Data hold time",
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          "kind": "timing",
          "unit": "ns",
          "min": 100,
          "typ": null,
          "max": null,
          "conditions": "VDD=3.0~5.5V",
          "source_page": 5,
          "source": "datasheet"
        },
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          "name": "Wait time",
          "symbol": "tWAIT",
          "kind": "timing",
          "unit": "μs",
          "min": 1,
          "typ": null,
          "max": null,
          "conditions": "CLK↑→CLK↓",
          "source_page": 5,
          "source": "datasheet"
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  }
}