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Ray Set visibility: public 9aa7d39 13h ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "a4952elytr-t",
  "title": "A4952ELYTR-T",
  "brief": "Allegro MicroSystems, LLC Motor Driver ICs, MSOP-10-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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    "power management ics",
    "a4952elytr-t",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "A4952ELYTR-T",
    "manufacturer": "Allegro MicroSystems, LLC",
    "package": "MSOP-10-EP",
    "pin_count": 11,
    "category": "Power Management ICs",
    "subcategory": "Motor Driver ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/4b37e2d0a55620f7f2cc7f18f64d19dc.pdf",
    "parts": {
      "symbol": "a4952elytr-t.kicad_sym",
      "footprint": "a4952elytr-t.kicad_mod",
      "model_3d": "a4952elytr-t-hero.glb",
      "model_3d_plain": "a4952elytr-t-etched.glb",
      "model_3d_step": "a4952elytr-t-etched.step",
      "model_3d_step_plain": "a4952elytr-t.step",
      "lbr": "a4952elytr-t.lbr"
    },
    "distributor_links": {
      "lcsc": "C2653530",
      "digikey": "620-1451-2-ND",
      "mouser": "250-A4952ELYTR-T"
    },
    "distributor_check": {
      "checked_at": "2026-11-02T17:17:48Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "620-1451-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "250-A4952ELYTR-T",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "FLTn",
        "type": "output",
        "description": "Open-drain active-low fault output that goes low when an overcurrent fault is detected, with VRST at most 0.5 V at IOUT = 1 mA and leakage at most 1 µA with no fault."
      },
      {
        "number": "2",
        "name": "RTRY",
        "type": "input",
        "description": "Retry input that selects the overcurrent response: tied to GND gives a 2-ms automatic retry, left open latches the fault, and VRTRY must be at most 200 mV when valid."
      },
      {
        "number": "3",
        "name": "IN2",
        "type": "input",
        "description": "Logic input 2 controlling the full bridge, with VIN(1) at least 2.0 V, VIN(0) at most 0.8 V and an absolute range of -0.3 to 6 V."
      },
      {
        "number": "4",
        "name": "IN1",
        "type": "input",
        "description": "Logic input 1 controlling the full bridge, with VIN(1) at least 2.0 V, VIN(0) at most 0.8 V and an absolute range of -0.3 to 6 V."
      },
      {
        "number": "5",
        "name": "VREF",
        "type": "power_in",
        "description": "Analog input that sets the current limit, with an operating range of 0 to 5 V and an absolute range of -0.3 to 6 V."
      },
      {
        "number": "6",
        "name": "VBB",
        "type": "power_in",
        "description": "Load supply voltage with an operating range of 8 to 40 V and an absolute maximum of 40 V; the UVLO enable threshold is 7.5 V typical."
      },
      {
        "number": "7",
        "name": "OUT1",
        "type": "output",
        "description": "DMOS full-bridge output 1, rated for motor outputs voltage of -2 to 42 V and output current of 2 A at 100% duty cycle."
      },
      {
        "number": "8",
        "name": "LSS",
        "type": "passive",
        "description": "Power return and sense resistor connection, where the sense voltage must stay within an absolute range of -0.5 to 0.5 V."
      },
      {
        "number": "9",
        "name": "OUT2",
        "type": "output",
        "description": "DMOS full-bridge output 2, rated for motor outputs voltage of -2 to 42 V and output current of 2 A at 100% duty cycle."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground connection for the device, where the copper ground plane under the exposed pad is recommended as the star ground point."
      },
      {
        "number": "11",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "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 exposed pad (PAD) is a thermal pad, not a numbered terminal; it is listed here as PAD because th"
        ],
        "pages_sent": 11,
        "cost_usd": 0.0172,
        "at": "2026-11-02T17:17:30"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/4b37e2d0a55620f7f2cc7f18f64d19dc.pdf",
        "pages": 11,
        "sha256": "b39efad36b5f408e",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 11,
        "described": 11,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "a4952elytr-t.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "18605eed706df7bb9674107abe7aa36e0ba163a09c21a2cee6c75cfa291b7937",
        "checked": "2026-11-02",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "a4952elytr-t-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "78cc390f9e859323bebb609a97d71e457d5312c49093546a711a978f4704538d",
        "checked": "2026-11-02",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Allegro MicroSystems, LLC",
      "Package": "MSOP-10-EP",
      "Category": "Power Management ICs",
      "Pins": "11"
    },
    "appearance": {
      "contacts": {
        "quote": "8-pin SOICN package (suffix LJ). Both packages have an exposed thermal pad, and are lead (Pb) free, with 100% matte tin",
        "page": 1,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "b39efad36b5f408e1922bacb5addba4343649b94187e9c1fc0761c7b94e50a64"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "b39efad36b5f408e1922bacb5addba4343649b94187e9c1fc0761c7b94e50a64",
      "rows": [
        {
          "name": "Load Supply Voltage",
          "symbol": "VBB",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Logic I/O Voltage Range",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "FLTn Sink Current",
          "symbol": "IFLTN",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "VREF Input Voltage Range",
          "symbol": "VREF",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
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        },
        {
          "name": "Sense Voltage (LSS pin)",
          "symbol": "VS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "",
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        },
        {
          "name": "Motor Outputs Voltage",
          "symbol": "VOUT",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -2,
          "typ": null,
          "max": 42,
          "conditions": "",
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        },
        {
          "name": "Output Current",
          "symbol": "IOUT",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "Duty cycle = 100%",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Transient Output Current",
          "symbol": "iOUT",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "TW < 500 ns",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature Range",
          "symbol": "TA",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "Temperature Range E",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Junction Temperature",
          "symbol": "TJ(max)",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Load Supply Voltage Range",
          "symbol": "VBB",
          "kind": "electrical",
          "unit": "V",
          "min": 8,
          "typ": null,
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          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Total RDS(on)",
          "symbol": "RDS(on)",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 0.8,
          "max": 1,
          "conditions": "IOUT = |1.5 A|, TJ = 25°C",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Total RDS(on)",
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          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 1.3,
          "max": 1.6,
          "conditions": "IOUT = |1.5 A|, TJ = 125°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Low Power Standby Load Supply Current",
          "symbol": "IBB",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "Low Power Standby mode",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Body Diode Forward Voltage, source diode",
          "symbol": "Vf",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "Source diode, If = –1.5 A",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Body Diode Forward Voltage, sink diode",
          "symbol": "Vf",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "Sink diode, If = 1.5 A",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Logic Input Voltage High",
          "symbol": "VIN(1)",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "INx pins",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Logic Input Voltage Low",
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          "kind": "electrical",
          "unit": "V",
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          "typ": null,
          "max": 0.8,
          "conditions": "INx pins",
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        {
          "name": "Logic Input Voltage in Standby",
          "symbol": "VIN(STANDBY)",
          "kind": "electrical",
          "unit": "V",
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          "max": 0.4,
          "conditions": "INx pins, Low Power Standby mode",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Logic Input Current High",
          "symbol": "IIN(1)",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 40,
          "max": 100,
          "conditions": "INx pins, VIN = 2.0 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Logic Input Current Low",
          "symbol": "IIN(0)",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 16,
          "max": 40,
          "conditions": "INx pins, VIN = 0.8 V",
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          "source": "datasheet"
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        {
          "name": "Input Hysteresis",
          "symbol": "VHYS",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 250,
          "max": 550,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Retry Input Voltage",
          "symbol": "VRTRY",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "RTRY pin = valid",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Fault Output Voltage",
          "symbol": "VRST",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "FLTn pin, IOUT = 1 mA",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Fault Output Leakage Current",
          "symbol": "ILK",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "FLTn pin, no fault, pull-up to 5 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Crossover Delay",
          "symbol": "tCOD",
          "kind": "timing",
          "unit": "ns",
          "min": 50,
          "typ": 400,
          "max": 500,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VREF Input Voltage Range",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 5,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Current Gain",
          "symbol": "AV",
          "kind": "electrical",
          "unit": "V/V",
          "min": 9.5,
          "typ": null,
          "max": 10.5,
          "conditions": "VREF / ISS, VREF = 5 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Current Gain",
          "symbol": "AV",
          "kind": "electrical",
          "unit": "V/V",
          "min": 9,
          "typ": null,
          "max": 10,
          "conditions": "VREF / ISS, VREF = 2.5 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Current Gain",
          "symbol": "AV",
          "kind": "electrical",
          "unit": "V/V",
          "min": 8,
          "typ": null,
          "max": 10,
          "conditions": "VREF / ISS, VREF = 1 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Blank Time",
          "symbol": "tBLANK",
          "kind": "timing",
          "unit": "µs",
          "min": 2,
          "typ": 3,
          "max": 4,
          "conditions": "",
          "source_page": 3,
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        },
        {
          "name": "Constant Off-Time",
          "symbol": "toff",
          "kind": "timing",
          "unit": "µs",
          "min": 16,
          "typ": 25,
          "max": 34,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Standby Timer",
          "symbol": "tst",
          "kind": "timing",
          "unit": "ms",
          "min": null,
          "typ": 1,
          "max": 1.5,
          "conditions": "IN1 = IN2 < VIN(STANDBY)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Power-Up Delay",
          "symbol": "tpu",
          "kind": "timing",
          "unit": "µs",
          "min": null,
          "typ": null,
          "max": 30,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "UVLO Enable Threshold",
          "symbol": "VBBUVLO",
          "kind": "electrical",
          "unit": "V",
          "min": 7,
          "typ": 7.5,
          "max": 7.95,
          "conditions": "VBB increasing",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "UVLO Hysteresis",
          "symbol": "VBBUVLOhys",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 500,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal Shutdown Temperature",
          "symbol": "TJTSD",
          "kind": "electrical",
          "unit": "°C",
          "min": null,
          "typ": 160,
          "max": null,
          "conditions": "Temperature increasing",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal Shutdown Hysteresis",
          "symbol": "TTSDhys",
          "kind": "electrical",
          "unit": "°C",
          "min": null,
          "typ": 20,
          "max": null,
          "conditions": "Recovery = TJTSD – TTSDhys",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Overcurrent Protection Limit",
          "symbol": "IOCP",
          "kind": "electrical",
          "unit": "A",
          "min": 2.5,
          "typ": null,
          "max": 6.5,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Overcurrent Protection Pulse Width",
          "symbol": "tOCP",
          "kind": "timing",
          "unit": "µs",
          "min": 1,
          "typ": null,
          "max": 4,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
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