A6217KLJTR-T

{
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  "type": "component",
  "slug": "a6217kljtr-t",
  "title": "A6217KLJTR-T",
  "brief": "Allegro MicroSystems LLC LED Drivers, SOIC-8-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "led drivers",
    "a6217kljtr-t",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "A6217KLJTR-T",
    "manufacturer": "Allegro MicroSystems LLC",
    "package": "SOIC-8-EP",
    "pin_count": 9,
    "category": "LED Drivers",
    "subcategory": "LED Drivers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586200220456009728",
    "parts": {
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      "lbr": "a6217kljtr-t.lbr"
    },
    "distributor_links": {
      "lcsc": "C163285",
      "digikey": "620-1816-2-ND",
      "mouser": "250-A6217KLJTR-T"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T05:48:12Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "620-1816-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "250-A6217KLJTR-T",
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      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Supply voltage input terminal, rated 6 to 48 V for operation with an absolute maximum of -0.3 to 50 V."
      },
      {
        "number": "2",
        "name": "TON",
        "type": "passive",
        "description": "Regulator on-time setting resistor terminal, connected through RON to VIN, which determines the switching frequency."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Enable and PWM dimming input, rated up to VIN and logic-level compatible."
      },
      {
        "number": "4",
        "name": "CS",
        "type": "input",
        "description": "Drive output current sense feedback; the average CS voltage is regulated at VCSREG (0.2 V typical), with an absolute maximum of -0.3 to 7 V."
      },
      {
        "number": "5",
        "name": "VCC",
        "type": "power_out",
        "description": "Internal linear regulator output that requires a 0.1 µF filter capacitor to GND, absolute maximum -0.3 to 7 V, and is not designed to drive an external load."
      },
      {
        "number": "6",
        "name": "GND",
        "type": "power_in",
        "description": "Ground terminal."
      },
      {
        "number": "7",
        "name": "BOOT",
        "type": "passive",
        "description": "DMOS gate driver bootstrap terminal, with an absolute maximum of -0.3 to VIN + 8 V."
      },
      {
        "number": "8",
        "name": "SW",
        "type": "output",
        "description": "Switched output terminal, with an absolute range of -1.5 to VIN + 0.3 V."
      },
      {
        "number": "9",
        "name": "PAD",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
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        "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 exposed thermal pad has no printed number on the LJ package; it is listed in the datasheet termi; The datasheet gives no ERC class for TON and BOOT; 'passive' was chosen because TON is a resistor-se",
          "exposed pad 9 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint"
        ],
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        "cost_usd": 0.096,
        "at": "2026-10-17T05:47:54"
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        "described": 9,
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  "metadata": {
    "specs": {
      "Manufacturer": "Allegro MicroSystems LLC",
      "Package": "SOIC-8-EP",
      "Category": "LED Drivers",
      "Pins": "9"
    },
    "appearance": {
      "contacts": {
        "quote": "are lead (Pb) free, with 100% matte-tin leadframe plating. A6217-DS",
        "page": 1,
        "doc": "ds.pdf",
        "plating": "tin"
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      "version": 1,
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    "characteristics": {
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      "rows": [
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          "name": "Input Supply Voltage",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 6,
          "typ": null,
          "max": 48,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature Range (electrical characteristics valid range)",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "Valid at VIN = 12 V; typical values at TJ = 25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VIN Pin Shutdown Current",
          "symbol": "IINSD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 1,
          "max": 10,
          "conditions": "EN shorted to GND",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Buck Switch Current Limit Threshold (A6217, 3 A part)",
          "symbol": "ISWLIM",
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          "min": 3,
          "typ": 4,
          "max": 5,
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        {
          "name": "Buck Switch On-Resistance",
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          "unit": "Ω",
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          "max": 0.4,
          "conditions": "VBOOT = VIN + 4.3 V, TA = 25°C, ISW = 1 A",
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        {
          "name": "BOOT Undervoltage Lockout Threshold",
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          "typ": 3.5,
          "max": 4.3,
          "conditions": "VBOOT to VSW increasing",
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        },
        {
          "name": "Switching Minimum Off-Time",
          "symbol": "tOFFmin",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 110,
          "max": 150,
          "conditions": "VCS = 0 V",
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        {
          "name": "Switching Minimum On-Time",
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          "kind": "timing",
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          "max": 100,
          "conditions": "",
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        {
          "name": "Selected On-Time",
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          "kind": "timing",
          "unit": "ns",
          "min": 200,
          "typ": 250,
          "max": 300,
          "conditions": "VIN = 12 V, VOUT = 6 V, RON = 31.6 kΩ",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Oscillator Frequency Dithering Range",
          "symbol": "fSW_DITH",
          "kind": "tolerance",
          "unit": "%",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "RON = 31.6 kΩ; printed as ±5",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Load Current Sense Regulation Threshold",
          "symbol": "VCSREG",
          "kind": "electrical",
          "unit": "mV",
          "min": 187.5,
          "typ": 200,
          "max": 210,
          "conditions": "VCS decreasing, SW turns on",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VCC Regulated Output",
          "symbol": "VCC",
          "kind": "electrical",
          "unit": "V",
          "min": 5.1,
          "typ": 5.4,
          "max": 5.7,
          "conditions": "0 mA < ICC < 5 mA, VIN > 6 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VCC Current Limit",
          "symbol": "ICCLIM",
          "kind": "electrical",
          "unit": "mA",
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          "typ": 20,
          "max": null,
          "conditions": "VCC = 0 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Logic High Voltage",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 1.8,
          "typ": null,
          "max": null,
          "conditions": "VEN increasing",
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        {
          "name": "Logic Low Voltage",
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          "typ": null,
          "max": 0.4,
          "conditions": "VEN decreasing",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum PWM Dimming Off-Time",
          "symbol": "tPWML",
          "kind": "timing",
          "unit": "ms",
          "min": 12,
          "typ": 20,
          "max": null,
          "conditions": "Measured while EN = low during dimming control, internal references powered on; exceeding tPWML results in shutdown",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input Supply Voltage (absolute maximum)",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Bootstrap Drive Voltage (absolute maximum)",
          "symbol": "VBOOT",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "",
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        {
          "name": "Switching Voltage (absolute maximum)",
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          "unit": "V",
          "min": -1.5,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Linear Regulator Terminal (absolute maximum)",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "VCC to GND",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Enable and TON Voltage (absolute maximum)",
          "symbol": "VEN, VTON",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Current Sense Voltage (absolute maximum)",
          "symbol": "VCS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Junction Temperature (absolute maximum)",
          "symbol": "TJ(max)",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature (absolute maximum)",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Package Thermal Resistance (Junction to Ambient), SOICN-8 (LJ)",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 35,
          "max": null,
          "conditions": "SOICN-8 (LJ) package on 4-layer PCB based on JEDEC standard",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Package Thermal Resistance (Junction to Pad)",
          "symbol": "RθJP",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 2,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
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    "name": "Ray",
    "email": "[email protected]"
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