TM1805

{
  "schema_version": 1,
  "type": "component",
  "slug": "tm1805",
  "title": "TM1805",
  "brief": "TM Shenzhen Titan Micro Elec LED Drivers, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "led-drv",
    "tm1805"
  ],
  "component": {
    "mpn": "TM1805",
    "manufacturer": "TM Shenzhen Titan Micro Elec",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "LED-drv",
    "subcategory": "LED Drivers",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2209231730_TM-Shenzhen-Titan-Micro-Elec-TM1805_C5174541.pdf",
    "parts": {
      "symbol": "tm1805.kicad_sym",
      "footprint": "tm1805.kicad_mod",
      "model_3d": "tm1805-etched.glb",
      "model_3d_plain": "tm1805.glb",
      "model_3d_step": "tm1805-etched.step",
      "model_3d_step_plain": "tm1805.step",
      "lbr": "tm1805.lbr"
    },
    "distributor_links": {
      "lcsc": "C5174541"
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD24V",
        "type": "power_in",
        "description": "Built-in 24V shunt (zener) regulator input. Requires an external series resistor and filter capacitor for resistor-capacitor (dropper) supply operation. Typical VZ24 ≈ 23V with a 300Ω series resistor."
      },
      {
        "number": "2",
        "name": "VDD",
        "type": "power_in",
        "description": "Chip logic supply input with built-in 5V shunt regulator. Recommended operating range 3.3-6.0V, typical 5.0V; typical no-load current 0.25mA."
      },
      {
        "number": "3",
        "name": "FIN",
        "type": "input",
        "description": "Frequency input for pattern-change timing and inter-chip synchronization. Accepts <4kHz sine/square/triangle, amplitude 3.5-5V. Tied to VDD or GND holds the current pattern; leaving it floating produces undefined behavior. VHIN ≈ 3.4V, VLIN ≈ 1.5V."
      },
      {
        "number": "4",
        "name": "SET",
        "type": "input",
        "description": "Display mode select. Floating: jump + fade sequence. Tied to VDD: jump-only cycle. Tied to GND: fade-only cycle. Typical sink current 15µA at 5V."
      },
      {
        "number": "5",
        "name": "B",
        "type": "output",
        "description": "Blue channel open-drain N-MOS output. Constant-voltage LED driver rated to 24V, typical sink current 82mA at VOUTn=1.2V, on-resistance ≈14Ω. PWM frequency ≈17.8kHz."
      },
      {
        "number": "6",
        "name": "G",
        "type": "output",
        "description": "Green channel open-drain N-MOS output. Constant-voltage LED driver rated to 24V, typical sink current 82mA at VOUTn=1.2V, on-resistance ≈14Ω. PWM frequency ≈17.8kHz."
      },
      {
        "number": "7",
        "name": "R",
        "type": "output",
        "description": "Red channel open-drain N-MOS output. Constant-voltage LED driver rated to 24V, typical sink current 82mA at VOUTn=1.2V, on-resistance ≈14Ω. PWM frequency ≈17.8kHz."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Logic ground reference. All voltages are measured with respect to this pin."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2209231730_TM-Shenzhen-Titan-Micro-Elec-TM1805_C5174541.pdf",
        "pages": 8,
        "sha256": "b8c70f77b97f828f",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -2.475,
        -1.905
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOIC-8_3.9x4.9mm_P1.27mm@sha256:074ecb2092b24fa4",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "tm1805.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tm1805-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "d6558a861db76cff33b6d57ce5105a6b2b6cbbf27ef3ae0f818114aeb2e95e4b",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "TM Shenzhen Titan Micro Elec",
      "Package": "SOP-8",
      "Category": "LED-drv",
      "Pins": "8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "tm1805"
  ],
  "discovery_pitch": "TM1805 (TM Shenzhen Titan Micro Elec) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tm1805.kicad_sym",
    "tm1805.kicad_mod",
    "tm1805.glb",
    "tm1805.step",
    "tm1805-etched.step",
    "tm1805.lbr",
    "docs/hero.png",
    "docs/tm1805-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-25T10:56:37.462Z"
}