DX1240

{
  "slug": "dx1240",
  "version": "0.1.0",
  "type": "component",
  "description": "Dersem LED Drivers, SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "led drivers",
    "dx1240",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "dx1240.kicad_sym",
    "dx1240.kicad_mod",
    "dx1240.glb",
    "dx1240.step",
    "dx1240.lbr",
    "docs/hero.png",
    "docs/dx1240-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "dx1240-hero.glb",
    "dx1240-hero.overlay.json",
    "dx1240-etched.glb"
  ],
  "component": {
    "mpn": "DX1240",
    "manufacturer": "Dersem",
    "package": "SOT-23-6",
    "pin_count": 6,
    "category": "LED Drivers",
    "subcategory": "LED Drivers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603369277894643712",
    "parts": {
      "symbol": "dx1240.kicad_sym",
      "footprint": "dx1240.kicad_mod",
      "model_3d": "dx1240-hero.glb",
      "model_3d_plain": "dx1240-etched.glb",
      "model_3d_step": "dx1240-etched.step",
      "model_3d_step_plain": "dx1240.step",
      "lbr": "dx1240.lbr"
    },
    "distributor_links": {
      "lcsc": "C22364151"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T21:20:27Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CS",
        "type": "input",
        "description": "Output current sense pin; the LED current is set by the external sense resistor as IOUT = 0.137 / Rcs, with CS regulation voltage 132-142 mV (typ. 137 mV) at VCC = 5 V and a CS pin rating of -0.3 to 6 V."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Chip ground reference."
      },
      {
        "number": "3",
        "name": "VIN",
        "type": "power_in",
        "description": "Supply input; the features list an operating range of 2.5-40 V, the electrical table gives a minimum of 3.0 V, and the absolute maximum rating is -0.3 to 46 V."
      },
      {
        "number": "4",
        "name": "VDDO",
        "type": "power_out",
        "description": "5 V auxiliary supply output that can power an external PWM controller (DX1240 only); the VDD pin rating is -0.3 to 6 V."
      },
      {
        "number": "5",
        "name": "DRV",
        "type": "output",
        "description": "NMOS gate drive output for the external MOSFET; the DRV pin rating is -0.3 to 6 V."
      },
      {
        "number": "6",
        "name": "DIM",
        "type": "input",
        "description": "PWM dimming input with internal 100 uA pull-up (defaults high when floating); PWM input rating is -0.3 to 6.0 V, the rising threshold is 0.5*VDD and the falling threshold is 0.3*VDD, and holding it low for more than 120 ms puts the chip into sleep mode."
      }
    ],
    "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's pin tables are not labeled by package in the text. The DX1240 ordering row lists the; Conflicting VIN minimum: the features and overview state 2.5-40 V, while the electrical table gives ; Pin 4 (VDDO) function is inconsistent: the pin table calls it a 'constant-current drive pin' (恒流驱动脚)"
        ],
        "pages_sent": 9,
        "cost_usd": 0.038,
        "at": "2026-10-18T21:18:11"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603369277894643712",
        "pages": 9,
        "sha256": "dcd1102efc9dac6e",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "dx1240.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c9fe686b4d1b56927a41fa84a9bc1efb61d8a45a123a3db43bcaa05c2891d635",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "dx1240-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b38b0877a48e971dd0288266149943c8fc08278a332c9aede0b3709615075fe5",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}