AL1666AS-13

{
  "schema_version": 1,
  "type": "component",
  "slug": "al1666as-13",
  "title": "AL1666AS-13",
  "brief": "Diodes Incorporated LED Drivers, SO-8. 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",
    "nixie tube driver-led driver",
    "al1666as-13",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "AL1666AS-13",
    "manufacturer": "Diodes Incorporated",
    "package": "SO-8",
    "pin_count": 8,
    "category": "Nixie Tube Driver/LED Driver",
    "subcategory": "LED Drivers",
    "datasheet": "https://www.diodes.com/assets/Datasheets/AL1666AS-13.pdf",
    "parts": {
      "symbol": "al1666as-13.kicad_sym",
      "footprint": "al1666as-13.kicad_mod",
      "model_3d": "al1666as-13-hero.glb",
      "model_3d_plain": "al1666as-13-etched.glb",
      "model_3d_step": "al1666as-13-etched.step",
      "model_3d_step_plain": "al1666as-13.step",
      "lbr": "al1666as-13.lbr"
    },
    "distributor_links": {
      "lcsc": "C5144611"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T18:22:31Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 886 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "ADIM",
        "type": "input",
        "description": "Analog dimming input accepting 0.05V to 2.4V DC for analog dimming (1% to 100%), or tied to a capacitor of hundreds of nF in PWM-to-DC dimming mode; absolute max -0.3 to 7V."
      },
      {
        "number": "2",
        "name": "PWMD",
        "type": "input",
        "description": "PWM signal input for PWM-to-DC dimming with low threshold max 0.4V, high threshold min 2.0V, and 0.5kHz to 20kHz frequency range; absolute max -0.3 to 7V."
      },
      {
        "number": "3",
        "name": "COMP",
        "type": "passive",
        "description": "Loop compensation pin where a CCOMP capacitor (1µF to 2µF recommended) is connected and RCOMP programs the startup pre-charge voltage; absolute max -0.3 to 7V."
      },
      {
        "number": "4",
        "name": "CS",
        "type": "input",
        "description": "Current sense pin connected to the source of the primary switch, with 0.4V reference, 2V cycle-by-cycle clamp, and 3V over-current trigger; absolute max -0.3 to 7V."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for the device."
      },
      {
        "number": "6",
        "name": "OUT",
        "type": "output",
        "description": "Gate driver output to the primary switch, clamped at typically 12V and with absolute max -0.3 to 20V."
      },
      {
        "number": "7",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage for the gate driver and control circuits, operating range 8.5V to 23V with startup threshold typically 15V and absolute max 30V."
      },
      {
        "number": "8",
        "name": "FB",
        "type": "input",
        "description": "Feedback voltage sensing input from the auxiliary winding via a divider, with FB CV/OVP threshold typically 3.0V and absolute max -0.3 to 7V."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "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": [],
        "pages_sent": 15,
        "cost_usd": 0.1399,
        "at": "2026-10-23T18:22:14"
      },
      "datasheet": {
        "url": "https://www.diodes.com/assets/Datasheets/AL1666AS-13.pdf",
        "pages": 15,
        "sha256": "b4199df6c0935596",
        "source_tier": "mfr"
      },
      "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"
    },
    "models_3d": [
      {
        "file": "al1666as-13.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": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "al1666as-13-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": "15175476b25201763760a2f9a5d3e4104794e8d2b6de4590a667e354962ec59f",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Diodes Incorporated",
      "Package": "SO-8",
      "Category": "Nixie Tube Driver/LED Driver",
      "Pins": "8"
    },
    "appearance": {
      "contacts": {
        "quote": " Terminals: Finish - Matte Tin Plated Leads, Solderable per M2003 JESD22-B102  Weight: 0.076 grams (Approximate)",
        "page": 14,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "b4199df6c09355966112091db8a1c01923f2a3cfbb21512c55496fb63972eb84"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "b4199df6c09355966112091db8a1c01923f2a3cfbb21512c55496fb63972eb84",
      "rows": [
        {
          "name": "Startup Threshold Voltage",
          "symbol": "VCC_TH",
          "kind": "electrical",
          "unit": "V",
          "min": 13.4,
          "typ": 15,
          "max": 16.5,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Minimal Operating Voltage After Turn On",
          "symbol": "VOPR_MIN",
          "kind": "electrical",
          "unit": "V",
          "min": 5.8,
          "typ": 7.8,
          "max": 9,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Startup Current",
          "symbol": "IST",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 120,
          "max": 300,
          "conditions": "VCC = VCC_TH -0.5V, before Start Up",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Operating Current @4kHz",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 2,
          "max": 4,
          "conditions": "VCC = 20V, VDIM = 3V, VFB = VCS = VCOMP = 1V, COUT = 1nF",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output Clamp Voltage",
          "symbol": "VOUT_CLAMP",
          "kind": "electrical",
          "unit": "V",
          "min": 9.8,
          "typ": 12,
          "max": 15.5,
          "conditions": "VCC = 20V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Minimum On Time",
          "symbol": "tON_MIN",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 1000,
          "max": 2010,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Maximum Off Time",
          "symbol": "tOFF_MAX",
          "kind": "timing",
          "unit": "µs",
          "min": null,
          "typ": 290,
          "max": 405,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Internal Reference Voltage",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 0.394,
          "typ": 0.4,
          "max": 0.406,
          "conditions": "TA = +25°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Internal Reference Voltage",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 0.392,
          "typ": 0.4,
          "max": 0.415,
          "conditions": "TA = -40°C to +105°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "FB CV Threshold",
          "symbol": "VFB_CV",
          "kind": "electrical",
          "unit": "V",
          "min": 2.86,
          "typ": 3,
          "max": 3.26,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "PWM Signal Low Threshold Voltage",
          "symbol": "VPWM_L",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "PWM Signal High Threshold Voltage",
          "symbol": "VPWM_H",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "PWM Frequency for PWM to DC Dimming",
          "symbol": "fPWM",
          "kind": "electrical",
          "unit": "kHz",
          "min": 0.5,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Analog Dimming Range on ADIM",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 0.05,
          "typ": null,
          "max": 2.4,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Analog Dimming High Level",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 2.35,
          "typ": 2.4,
          "max": 2.45,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Analog Dimming Range Ratio",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": 1,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Ambient Temperature",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 105,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating VCC Voltage",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 8.5,
          "typ": null,
          "max": 23,
          "conditions": "ICC should be limited less than 5mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Power Supply Voltage",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 30,
          "conditions": "TA = +25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Voltage at CS to GND",
          "symbol": "VCS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "TA = +25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "FB Input",
          "symbol": "VFB",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "TA = +25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Loop Compensation Pin",
          "symbol": "VCOMP",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "TA = +25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Driver Output Voltage",
          "symbol": "VOUT",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 20,
          "conditions": "TA = +25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Voltage at PWMD to GND",
          "symbol": "VPWMD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "TA = +25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Voltage at ADIM to GND",
          "symbol": "VADIM",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "TA = +25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating Junction Temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "TA = +25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "TA = +25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Lead Temperature (Soldering, 10s)",
          "symbol": "TLEAD",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "TA = +25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Power Dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 0.65,
          "conditions": "at TA = +50°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "ESD (Human Body Model)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 2000,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "CDM (Charged-Device Model)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1000,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance (Junction to Ambient)",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 136,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance (Junction to Case)",
          "symbol": "θJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 30,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage Rise Time",
          "symbol": "tR",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "CL = 1nF",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage Fall Time",
          "symbol": "tF",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "CL = 1nF",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Maximum On Time",
          "symbol": "tON_MAX",
          "kind": "timing",
          "unit": "µs",
          "min": null,
          "typ": 15,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Maximum Frequency",
          "symbol": "fMAX",
          "kind": "timing",
          "unit": "kHz",
          "min": null,
          "typ": 150,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Primary Current Clamp Voltage",
          "symbol": "VCS_CLAMP",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 2,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Primary Over Current Voltage",
          "symbol": "VCS_OCP",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 3,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Trans-Conductance",
          "symbol": "Gm",
          "kind": "electrical",
          "unit": "µA/V",
          "min": null,
          "typ": 27,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Amplifier Source Current",
          "symbol": "ISOURCE",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 7.2,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Overheating Temperature Regulation",
          "symbol": "TREG",
          "kind": "thermal",
          "unit": "°C",
          "min": null,
          "typ": 150,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Shutdown Temperature",
          "symbol": "",
          "kind": "thermal",
          "unit": "°C",
          "min": null,
          "typ": 180,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "al1666as-13"
  ],
  "discovery_pitch": "AL1666AS-13 (Diodes Incorporated) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "al1666as-13.kicad_sym",
    "al1666as-13.kicad_mod",
    "al1666as-13.glb",
    "al1666as-13.step",
    "al1666as-13.lbr",
    "docs/hero.png",
    "docs/al1666as-13-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "al1666as-13-hero.glb",
    "al1666as-13-hero.overlay.json",
    "al1666as-13-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}