A6217KEJTR-1-J

{
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  "type": "component",
  "slug": "a6217kejtr-1-j",
  "title": "A6217KEJTR-1-J",
  "brief": "Allegro MicroSystems, LLC LED Drivers, WDFN-10-EP(3x3). 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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    "display modules - led drivers - display drivers",
    "a6217kejtr-1-j",
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  "component": {
    "mpn": "A6217KEJTR-1-J",
    "manufacturer": "Allegro MicroSystems, LLC",
    "package": "WDFN-10-EP(3x3)",
    "pin_count": 11,
    "category": "Display Modules / LED Drivers / Display Drivers",
    "subcategory": "LED Drivers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/42baaaa1e6b44f6c889fdd89eb50f6a8.pdf",
    "parts": {
      "symbol": "a6217kejtr-1-j.kicad_sym",
      "footprint": "a6217kejtr-1-j.kicad_mod",
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      "lbr": "a6217kejtr-1-j.lbr"
    },
    "distributor_links": {
      "lcsc": "C2678967",
      "digikey": "620-A6217KEJTR-1-JTR-ND",
      "mouser": "250-A6217KEJTR-1-J"
    },
    "distributor_check": {
      "checked_at": "2026-10-26T19:18:28Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "620-A6217KEJTR-1-JTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "250-A6217KEJTR-1-J",
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    },
    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Supply voltage input terminal (pins 1 and 2 are tied together), operating range 6 to 48 V, absolute maximum 50 V."
      },
      {
        "number": "2",
        "name": "VIN",
        "type": "power_in",
        "description": "Supply voltage input terminal (pins 1 and 2 are tied together), operating range 6 to 48 V, absolute maximum 50 V."
      },
      {
        "number": "3",
        "name": "TON",
        "type": "passive",
        "description": "Regulator on-time setting resistor terminal (RON to VIN) that determines the switching frequency of the converter."
      },
      {
        "number": "4",
        "name": "EN",
        "type": "input",
        "description": "Input for Enable and PWM dimming, rated up to VIN and logic-level compatible with VIH 1.8 V min and VIL 0.4 V max."
      },
      {
        "number": "5",
        "name": "CS",
        "type": "input",
        "description": "Drive output current sense feedback, regulated at 0.2 V typical (VCSREG) across the sense resistor."
      },
      {
        "number": "6",
        "name": "VCC",
        "type": "power_out",
        "description": "Internal linear regulator output (5.4 V typical); add a 0.1 µF filter capacitor from this pin to GND, not designed to drive an external load."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground terminal."
      },
      {
        "number": "8",
        "name": "BOOT",
        "type": "passive",
        "description": "DMOS gate driver bootstrap terminal, connect a 0.1 µF bootstrap capacitor to SW."
      },
      {
        "number": "9",
        "name": "SW",
        "type": "output",
        "description": "Switched output terminal (pins 9 and 10 are tied together) of the buck switch."
      },
      {
        "number": "10",
        "name": "SW",
        "type": "output",
        "description": "Switched output terminal (pins 9 and 10 are tied together) of the buck switch."
      },
      {
        "number": "11",
        "name": "PAD",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
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        "pages": 19,
        "sha256": "3f32829f0b7cf824",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 11,
        "described": 11,
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        "zmin_mm": 0,
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  "metadata": {
    "specs": {
      "Manufacturer": "Allegro MicroSystems, LLC",
      "Package": "WDFN-10-EP(3x3)",
      "Category": "Display Modules / LED Drivers / Display Drivers",
      "Pins": "11"
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    "appearance": {
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        "quote": "are lead (Pb) free, with 100% matte-tin leadframe plating. A6217-DS, Rev. 1",
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        "plating": "tin"
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        {
          "name": "Buck Switch On-Resistance",
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          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 0.25,
          "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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          "max": 150,
          "conditions": "VCS = 0 V",
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          "name": "Switching Minimum On-Time",
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          "name": "Selected On-Time",
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          "typ": 250,
          "max": 300,
          "conditions": "VIN = 12 V, VOUT = 6 V, RON = 31.6 kΩ",
          "source_page": 4,
          "source": "datasheet"
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          "name": "Load Current Sense Regulation Threshold",
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          "kind": "electrical",
          "unit": "mV",
          "min": 187.5,
          "typ": 200,
          "max": 210,
          "conditions": "VCS decreasing, SW turns on",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "VCC Regulated Output",
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          "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"
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        {
          "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,
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        {
          "name": "EN Logic High Voltage",
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          "kind": "electrical",
          "unit": "V",
          "min": 1.8,
          "typ": null,
          "max": null,
          "conditions": "VEN increasing",
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        {
          "name": "EN Logic Low Voltage",
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          "kind": "electrical",
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          "max": 0.4,
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        {
          "name": "Maximum PWM Dimming Off-Time",
          "symbol": "tPWML",
          "kind": "timing",
          "unit": "ms",
          "min": 12,
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          "max": null,
          "conditions": "Measured while EN = low, during dimming control, and internal references are powered on",
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        {
          "name": "VIN Pin Shutdown Current",
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          "kind": "electrical",
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          "max": 10,
          "conditions": "EN shorted to GND",
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          "name": "VIN Undervoltage Lockout Threshold",
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          "max": null,
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          "name": "VIN Undervoltage Lockout Hysteresis",
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          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 150,
          "max": null,
          "conditions": "VIN decreasing",
          "source_page": 4,
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        {
          "name": "VIN Pin Supply Current",
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          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 2.5,
          "max": null,
          "conditions": "VCS = 0.5 V, EN = High",
          "source_page": 4,
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        {
          "name": "VIN Pin Standby Current",
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          "kind": "electrical",
          "unit": "mA",
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          "max": null,
          "conditions": "VCS = 0.5 V, EN = high to low, within 10 ms",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "BOOT Undervoltage Lockout Hysteresis",
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          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 370,
          "max": null,
          "conditions": "VBOOT to VSW decreasing",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Oscillator Frequency Dithering Range",
          "symbol": "fSW_DITH",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 5,
          "max": null,
          "conditions": "RON = 31.6 kΩ, printed ±5",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Dithering Modulation Frequency",
          "symbol": "fSW_MOD",
          "kind": "electrical",
          "unit": "kHz",
          "min": null,
          "typ": 11,
          "max": null,
          "conditions": "RON = 31.6 kΩ",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Load Current Sense Bias Current",
          "symbol": "ICSBIAS",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.9,
          "max": null,
          "conditions": "VCS = 0.2 V, EN = low",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "EN Pin Pull-Down Resistance",
          "symbol": "RENPD",
          "kind": "electrical",
          "unit": "kΩ",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "VEN = 5 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal Shutdown Threshold",
          "symbol": "TSD",
          "kind": "electrical",
          "unit": "°C",
          "min": null,
          "typ": 165,
          "max": null,
          "conditions": "",
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        {
          "name": "Thermal Shutdown Hysteresis",
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          "kind": "electrical",
          "unit": "°C",
          "min": null,
          "typ": 25,
          "max": null,
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        {
          "name": "Supply Voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 2,
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        {
          "name": "Bootstrap Drive Voltage",
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          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 8,
          "conditions": "Upper limit printed as VIN + 8 V",
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        {
          "name": "Switching Voltage",
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          "min": -1.5,
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          "max": 0.3,
          "conditions": "Upper limit printed as VIN + 0.3 V",
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        {
          "name": "Linear Regulator Terminal VCC",
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          "conditions": "VCC to GND",
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          "source": "datasheet"
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        {
          "name": "Enable and TON Voltage",
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          "conditions": "Upper limit printed as VIN + 0.3 V",
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          "name": "Current Sense Voltage",
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        {
          "name": "Maximum Junction Temperature",
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          "unit": "ºC",
          "min": null,
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          "name": "Storage Temperature",
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          "conditions": "",
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          "name": "Package Thermal Resistance (Junction to Ambient)",
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          "kind": "thermal",
          "unit": "ºC/W",
          "min": null,
          "typ": 45,
          "max": null,
          "conditions": "DFN-10 (EJ) package on 4-layer PCB based on JEDEC standard",
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          "name": "Package Thermal Resistance (Junction to Pad)",
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