AMT49105KEVTR-J

{
  "schema_version": 1,
  "type": "component",
  "slug": "amt49105kevtr-j",
  "title": "AMT49105KEVTR-J",
  "brief": "Allegro MicroSystems, LLC Gate Drive ICs, QFN-48(7x7). 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",
    "power management",
    "amt49105kevtr-j",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "AMT49105KEVTR-J",
    "manufacturer": "Allegro MicroSystems, LLC",
    "package": "QFN-48(7x7)",
    "pin_count": 49,
    "category": "Power Management",
    "subcategory": "Gate Drive ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/f1e650080ad52f165a41468eca3804f6.pdf",
    "parts": {
      "symbol": "amt49105kevtr-j.kicad_sym",
      "footprint": "amt49105kevtr-j.kicad_mod",
      "model_3d": "amt49105kevtr-j-hero.glb",
      "model_3d_plain": "amt49105kevtr-j-etched.glb",
      "model_3d_step": "amt49105kevtr-j-etched.step",
      "model_3d_step_plain": "amt49105kevtr-j.step",
      "lbr": "amt49105kevtr-j.lbr"
    },
    "distributor_links": {
      "lcsc": "C5551194",
      "digikey": "620-AMT49105KEVTR-JTR-ND",
      "mouser": "250-AMT49105KEVTR-J"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T15:50:04Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "620-AMT49105KEVTR-JTR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "250-AMT49105KEVTR-J",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VLR",
        "type": "power_out",
        "description": "VLR is the logic supply regulator output, selectable as 3.3 or 5 V, and requires a ceramic capacitor of at least 1 µF with ESR no more than 250 mΩ to GND for stability."
      },
      {
        "number": "2",
        "name": "ENABLE",
        "type": "input",
        "description": "ENABLE disables all gate drive outputs when pulled low in direct mode or after a timeout in watchdog mode."
      },
      {
        "number": "3",
        "name": "HA",
        "type": "input",
        "description": "HA is the logic input controlling the high-side gate drive output, with a pull-down connected to the input."
      },
      {
        "number": "4",
        "name": "LA",
        "type": "input",
        "description": "LA is the logic input controlling the low-side gate drive output, with a pull-down connected to the input."
      },
      {
        "number": "5",
        "name": "HB",
        "type": "input",
        "description": "HB is the logic input controlling the high-side gate drive output, with a pull-down connected to the input."
      },
      {
        "number": "6",
        "name": "LB",
        "type": "input",
        "description": "LB is the logic input controlling the low-side gate drive output, with a pull-down connected to the input."
      },
      {
        "number": "7",
        "name": "HC",
        "type": "input",
        "description": "HC is the logic input controlling the high-side gate drive output, with a pull-down connected to the input."
      },
      {
        "number": "8",
        "name": "LC",
        "type": "input",
        "description": "LC is the logic input controlling the low-side gate drive output, with a pull-down connected to the input."
      },
      {
        "number": "9",
        "name": "WDOG",
        "type": "input",
        "description": "WDOG is the external microcontroller window watchdog input with resistor pull-down and programmable minimum and maximum clock period."
      },
      {
        "number": "10",
        "name": "STRn",
        "type": "input",
        "description": "STRn is the serial strobe and chip-select input with resistor pull-up; when high, SCK and SDI activity is ignored."
      },
      {
        "number": "11",
        "name": "SCK",
        "type": "input",
        "description": "SCK is the serial clock input with resistor pull-down; data is latched in from SDI on the rising edge."
      },
      {
        "number": "12",
        "name": "SDI",
        "type": "input",
        "description": "SDI is the serial data input with resistor pull-down accepting a 16-bit serial word, MSB first."
      },
      {
        "number": "13",
        "name": "SDO",
        "type": "output",
        "description": "SDO is the serial data output, high impedance or clock output when STRn is high, and outputs the fault flag (Status register bit 15) as soon as STRn goes low."
      },
      {
        "number": "14",
        "name": "MRSTn",
        "type": "output",
        "description": "MRSTn is the microcontroller reset output that holds the microcontroller in reset until supplies are available and resets it on watchdog failure."
      },
      {
        "number": "15",
        "name": "BXM",
        "type": "output",
        "description": "BXM is the BEMF zero crossing multiplex logic output representing the state of a selected phase relative to the average voltage of the three phases."
      },
      {
        "number": "16",
        "name": "CSO",
        "type": "output",
        "description": "CSO is the current sense amplifier output."
      },
      {
        "number": "17",
        "name": "CSM",
        "type": "input",
        "description": "CSM is the negative differential current sense amplifier input, connected directly to one end of the sense resistor on a separate PCB trace."
      },
      {
        "number": "18",
        "name": "CSP",
        "type": "input",
        "description": "CSP is the positive differential current sense amplifier input, connected directly to the other end of the sense resistor on a separate PCB trace."
      },
      {
        "number": "19",
        "name": "PM",
        "type": "input",
        "description": "PM is the program mode logic input that disables the watchdog and MRSTn."
      },
      {
        "number": "20",
        "name": "LRX",
        "type": "output",
        "description": "LRX is the LIN or PWM receive logic level output."
      },
      {
        "number": "21",
        "name": "LTX",
        "type": "input",
        "description": "LTX is the LIN or FAULT transmit logic level input."
      },
      {
        "number": "22",
        "name": "LIN",
        "type": "bidirectional",
        "description": "LIN is the LIN bus connection compliant with ISO17987 (LIN 2.x) and can also be used as a PWM input passed to LRX."
      },
      {
        "number": "23",
        "name": "GND",
        "type": "power_in",
        "description": "GND is the analog reference, digital, and power ground; all GND terminals must be connected together to supply ground."
      },
      {
        "number": "24",
        "name": "GND",
        "type": "power_in",
        "description": "GND is the analog reference, digital, and power ground; all GND terminals must be connected together to supply ground."
      },
      {
        "number": "25",
        "name": "LSSC",
        "type": "passive",
        "description": "LSSC is the low-side return path for discharge of the low-side MOSFET gate capacitance, connected through a low-impedance track to the common source of the phase C low-side MOSFETs."
      },
      {
        "number": "26",
        "name": "GLC",
        "type": "output",
        "description": "GLC is the phase C low-side gate-drive output for an external N-channel MOSFET."
      },
      {
        "number": "27",
        "name": "GHC",
        "type": "output",
        "description": "GHC is the phase C high-side gate-drive output for an external N-channel MOSFET."
      },
      {
        "number": "28",
        "name": "SC",
        "type": "passive",
        "description": "SC is the phase C motor connection that senses the voltage switched across the load and serves as the negative supply for the floating high-side driver."
      },
      {
        "number": "29",
        "name": "CC",
        "type": "power_in",
        "description": "CC is the phase C high-side bootstrap capacitor connection and positive supply for the high-side gate driver."
      },
      {
        "number": "30",
        "name": "LSSB",
        "type": "passive",
        "description": "LSSB is the low-side return path for discharge of the low-side MOSFET gate capacitance, connected through a low-impedance track to the common source of the phase B low-side MOSFETs."
      },
      {
        "number": "31",
        "name": "GLB",
        "type": "output",
        "description": "GLB is the phase B low-side gate-drive output for an external N-channel MOSFET."
      },
      {
        "number": "32",
        "name": "GHB",
        "type": "output",
        "description": "GHB is the phase B high-side gate-drive output for an external N-channel MOSFET."
      },
      {
        "number": "33",
        "name": "SB",
        "type": "passive",
        "description": "SB is the phase B motor connection that senses the voltage switched across the load and serves as the negative supply for the floating high-side driver."
      },
      {
        "number": "34",
        "name": "CB",
        "type": "power_in",
        "description": "CB is the phase B high-side bootstrap capacitor connection and positive supply for the high-side gate driver."
      },
      {
        "number": "35",
        "name": "LSSA",
        "type": "passive",
        "description": "LSSA is the low-side return path for discharge of the low-side MOSFET gate capacitance, connected through a low-impedance track to the common source of the phase A low-side MOSFETs."
      },
      {
        "number": "36",
        "name": "GLA",
        "type": "output",
        "description": "GLA is the phase A low-side gate-drive output for an external N-channel MOSFET."
      },
      {
        "number": "37",
        "name": "GHA",
        "type": "output",
        "description": "GHA is the phase A high-side gate-drive output for an external N-channel MOSFET."
      },
      {
        "number": "38",
        "name": "SA",
        "type": "passive",
        "description": "SA is the phase A motor connection that senses the voltage switched across the load and serves as the negative supply for the floating high-side driver."
      },
      {
        "number": "39",
        "name": "CA",
        "type": "power_in",
        "description": "CA is the phase A high-side bootstrap capacitor connection and positive supply for the high-side gate driver."
      },
      {
        "number": "40",
        "name": "VREG",
        "type": "power_out",
        "description": "VREG is the regulated gate drive supply output, selectable as 8 or 11 V, requiring a storage capacitor of at least 4.7 µF (X7R, 50 V)."
      },
      {
        "number": "41",
        "name": "CP2",
        "type": "passive",
        "description": "CP2 is the charge pump capacitor connection; a 470 nF ceramic capacitor is connected between CP1 and CP2."
      },
      {
        "number": "42",
        "name": "CP1",
        "type": "passive",
        "description": "CP1 is the charge pump capacitor connection; a 470 nF ceramic capacitor is connected between CP1 and CP2."
      },
      {
        "number": "43",
        "name": "GND",
        "type": "power_in",
        "description": "GND is the analog reference, digital, and power ground; all GND terminals must be connected together to supply ground."
      },
      {
        "number": "44",
        "name": "VBB",
        "type": "power_in",
        "description": "VBB is the main power supply input for the internal regulators and charge pump, operating from 5.5 to 50 V and connected through reverse voltage protection."
      },
      {
        "number": "45",
        "name": "IG",
        "type": "input",
        "description": "IG is the ignition switch input with resistor pull-down that wakes the device and enables the logic regulator, with input thresholds allowing ±2 V ground difference."
      },
      {
        "number": "46",
        "name": "BRSW",
        "type": "passive",
        "description": "BRSW is a switched version of the VBRG voltage, high impedance in sleep mode, which can also be switched off via the serial interface."
      },
      {
        "number": "47",
        "name": "VBRG",
        "type": "input",
        "description": "VBRG is the sense input to the top of the external MOSFET bridge for measuring the drain voltage of the high-side MOSFETs."
      },
      {
        "number": "48",
        "name": "DIAG",
        "type": "output",
        "description": "DIAG is the programmable diagnostic output that can be shorted to ground or VBB without damage."
      },
      {
        "number": "49",
        "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: Pinout diagram on page 4 labels pin 13 as SDC while the terminal list on the same page gives SDO; th",
          "32/49 pins cited to the wrong page (name found elsewhere): ['6:LB@p19', '9:WDOG@p19', '12:SDI@p19', '13:SDO@p19']"
        ],
        "pages_sent": 8,
        "cost_usd": 0.035,
        "at": "2026-10-28T15:49:28"
      },
      "datasheet": {
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        "pages": 73,
        "sha256": "8c36e089ba9b6cc3",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 49,
        "described": 49,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
    },
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        "seat": "z = 0",
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        "checked": "2026-10-28",
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      },
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Allegro MicroSystems, LLC",
      "Package": "QFN-48(7x7)",
      "Category": "Power Management",
      "Pins": "49"
    },
    "appearance": {
      "contacts": {
        "quote": "QFN package (suffix EV). This package is lead (Pb) free with 100% matte-tin leadframe plating.",
        "page": 1,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "8c36e089ba9b6cc36851c460a2d97fd8ed4813107cee19619dfa40fa614050e6"
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    "characteristics": {
      "version": 1,
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      "rows": [
        {
          "name": "Supply Voltage",
          "symbol": "VBB",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 50,
          "conditions": "",
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        },
        {
          "name": "Pumped Regulator Terminal",
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        {
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        },
        {
          "name": "LIN Bus Interface",
          "symbol": "VLIN",
          "kind": "absolute_maximum",
          "unit": "V",
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        {
          "name": "Logic Output",
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        {
          "name": "Bridge Drain Monitor Terminals",
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        {
          "name": "Switched Bridge Terminal",
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          "min": -0.3,
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          "conditions": "BRSW",
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        },
        {
          "name": "Sense Amplifier Inputs",
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          "max": 6.5,
          "conditions": "CSP, CSM",
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        },
        {
          "name": "Ambient Operating Temperature Range",
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        },
        {
          "name": "Maximum Continuous Junction Temperature",
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          "name": "Transient Junction Temperature",
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          "unit": "°C",
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        {
          "name": "Storage Temperature Range",
          "symbol": "Tstg",
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          "unit": "°C",
          "min": -55,
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        },
        {
          "name": "VBB Functional Operating Range",
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          "kind": "recommended_operating",
          "unit": "V",
          "min": 5.5,
          "typ": null,
          "max": 50,
          "conditions": "Operating; outputs active",
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        },
        {
          "name": "VBB Quiescent Current",
          "symbol": "IBBQ",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 25,
          "max": 28,
          "conditions": "VBB = 12 V, all gate drive outputs low",
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        {
          "name": "VBB Sleep State Current",
          "symbol": "IBBS",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
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          "max": 10,
          "conditions": "VLIN = VBB = 12 V, in sleep state",
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        {
          "name": "VREG Output Voltage (VRG=0)",
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          "min": 7.5,
          "typ": 8,
          "max": 8.5,
          "conditions": "VRG = 0, VBB ≥ 8.5 V, IVREG = 0 to 35 mA",
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        {
          "name": "VREG Output Voltage (VRG=1)",
          "symbol": "VREG",
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          "min": 9,
          "typ": 11,
          "max": 11.7,
          "conditions": "VRG = 1, VBB ≥ 9 V, IVREG = 0 to 33 mA",
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        {
          "name": "VLR Output Voltage (VLR=0)",
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          "kind": "electrical",
          "unit": "V",
          "min": 3.1,
          "typ": 3.3,
          "max": 3.5,
          "conditions": "VLR = 0, IVLR < 70 mA, VBB > 6 V",
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        {
          "name": "VLR Output Voltage (VLR=1)",
          "symbol": "VLR",
          "kind": "electrical",
          "unit": "V",
          "min": 4.8,
          "typ": 5,
          "max": 5.2,
          "conditions": "VLR = 1, IVLR < 70 mA, VBB > 6.5 V",
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        },
        {
          "name": "VLR Regulator Current Limit",
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          "kind": "electrical",
          "unit": "mA",
          "min": 130,
          "typ": null,
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          "conditions": "",
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        },
        {
          "name": "VLR Regulator Enable Voltage Threshold",
          "symbol": "VLROE",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "VLR rising",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "BRSW Switch Impedance",
          "symbol": "RBRSW",
          "kind": "electrical",
          "unit": "Ω",
          "min": 50,
          "typ": null,
          "max": 250,
          "conditions": "IBRSW = –5 mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
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