AL8843QSP-13

{
  "schema_version": 1,
  "type": "component",
  "slug": "al8843qsp-13",
  "title": "AL8843QSP-13",
  "brief": "Diodes Incorporated LED Drivers, SOIC-8-EP. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "led-drv",
    "al8843qsp-13"
  ],
  "component": {
    "mpn": "AL8843QSP-13",
    "manufacturer": "Diodes Incorporated",
    "package": "SOIC-8-EP",
    "pin_count": 9,
    "category": "LED-drv",
    "subcategory": "LED Drivers",
    "datasheet": "https://www.diodes.com/assets/Datasheets/AL8843QSP-13.pdf",
    "parts": {
      "symbol": "al8843qsp-13.kicad_sym",
      "footprint": "al8843qsp-13.kicad_mod",
      "model_3d": "al8843qsp-13-etched.glb",
      "model_3d_plain": "al8843qsp-13.glb",
      "model_3d_step": "al8843qsp-13-etched.step",
      "model_3d_step_plain": "al8843qsp-13.step",
      "lbr": "al8843qsp-13.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground of IC. Tie to system ground plane."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground of IC. Primary conducted-heat return path; connect to a maximum earth plane with thermal vias to minimize self-heating."
      },
      {
        "number": "3",
        "name": "SET",
        "type": "input",
        "description": "Set Nominal Output Current pin. Connect an R_SET resistor from this pin to VIN to define the nominal average LED current; mean current-sense threshold is 100mV (typ) referenced to VIN. Absolute max voltage +42V."
      },
      {
        "number": "4",
        "name": "NC",
        "type": "unconnected",
        "description": "No Connection. Leave floating or tie to GND for mechanical support."
      },
      {
        "number": "5",
        "name": "CTRL",
        "type": "input",
        "description": "Multi-function on/off, analog and PWM brightness control, and soft-start pin. Float for normal operation; drive <0.3V to shut down output; DC voltage 0.4V-2.5V adjusts output current from 10%-100%; >2.6V gives 100% I_OUT_NOM; also accepts a PWM signal (V_L<0.3V, V_H>2.6V, edges <1us). A capacitor from CTRL to GND sets additional soft-start time (~1.5ms/nF over the 0.1ms default). Absolute max +6V."
      },
      {
        "number": "6",
        "name": "VIN",
        "type": "power_in",
        "description": "Input voltage supply, 4.5V-40V (absolute max +42V). Decouple to GND with a 10uF or larger X7R ceramic capacitor placed close to the device."
      },
      {
        "number": "7",
        "name": "SW",
        "type": "output",
        "description": "Switch pin - drain of the internal 40V NMOS power switch (R_ON ~0.2Ω @ 100mA). Connect the inductor and freewheeling diode here; minimize track length to reduce EMI."
      },
      {
        "number": "8",
        "name": "SW",
        "type": "output",
        "description": "Switch pin - internally tied to pin 7 (drain of internal 40V NMOS power switch). Connect the inductor and freewheeling diode here; minimize track length to reduce EMI."
      },
      {
        "number": "EP",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad / thermal tab on package bottom. Connect to GND and to a thermal copper mass for enhanced thermal impedance (θJA = 45°C/W with recommended layout)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.diodes.com/assets/Datasheets/AL8843QSP-13.pdf",
        "pages": 18,
        "sha256": "1c5463a652278ea6",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 9,
        "described": 9,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "al8843qsp-13.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "2d6f7e774e8143e3320cbd59eb5be9f3b7864614644e3b072006e1eb05fb7fa6",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "al8843qsp-13-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "b1dea66d003bd90276b7e7c05182003aa79a76ec7b50f579523e08a65de88289",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Diodes Incorporated",
      "Package": "SOIC-8-EP",
      "Category": "LED-drv",
      "Pins": "9"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "al8843qsp-13"
  ],
  "discovery_pitch": "AL8843QSP-13 (Diodes Incorporated) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "al8843qsp-13.kicad_sym",
    "al8843qsp-13.kicad_mod",
    "al8843qsp-13.glb",
    "al8843qsp-13.step",
    "al8843qsp-13.lbr",
    "docs/hero.png",
    "docs/al8843qsp-13-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "al8843qsp-13-etched.step"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "AL8843QSP-13",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-24T16:15:22.989Z"
}