FU6831Q

{
  "slug": "fu6831q",
  "version": "0.1.0",
  "type": "component",
  "description": "Fortior Tech Motor Driver ICs, QFN-48-EP(6x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management ics",
    "fu6831q",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "fu6831q.kicad_sym",
    "fu6831q.kicad_mod",
    "fu6831q.glb",
    "fu6831q.step",
    "fu6831q.lbr",
    "docs/hero.png",
    "docs/fu6831q-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "fu6831q-hero.glb",
    "fu6831q-hero.overlay.json",
    "fu6831q-etched.glb"
  ],
  "component": {
    "mpn": "FU6831Q",
    "manufacturer": "Fortior Tech",
    "package": "QFN-48-EP(6x6)",
    "pin_count": 49,
    "category": "Power Management ICs",
    "subcategory": "Motor Driver ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/5cd84e888994af36f0bbf78018c8ae6b.pdf",
    "parts": {
      "symbol": "fu6831q.kicad_sym",
      "footprint": "fu6831q.kicad_mod",
      "model_3d": "fu6831q-hero.glb",
      "model_3d_plain": "fu6831q-etched.glb",
      "model_3d_step": "fu6831q-etched.step",
      "model_3d_step_plain": "fu6831q.step",
      "lbr": "fu6831q.lbr"
    },
    "distributor_links": {
      "lcsc": "C328455"
    },
    "distributor_check": {
      "checked_at": "2026-10-29T00:31:15Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "P2.2/C2M/A2M",
        "type": "bidirectional",
        "description": "GPIO with configurable external interrupt INT1 input and ~4.7K pull-up; also the differential Hall2/BEMF2 negative input and the AMP2 negative input."
      },
      {
        "number": "2",
        "name": "P2.3/AD1/A2O",
        "type": "bidirectional",
        "description": "GPIO with configurable external interrupt INT1 input; ADC channel 1 input that samples the amplified phase current 2 signal, and the AMP2 output."
      },
      {
        "number": "3",
        "name": "P2.4/AD2",
        "type": "bidirectional",
        "description": "GPIO with configurable external interrupt INT1 input; ADC channel 2 input for the bus voltage signal."
      },
      {
        "number": "4",
        "name": "P2.5/AD3",
        "type": "bidirectional",
        "description": "GPIO with configurable external interrupt INT1 input; ADC channel 3 input."
      },
      {
        "number": "5",
        "name": "P2.6/C3M",
        "type": "bidirectional",
        "description": "GPIO with configurable external interrupt INT1 input; overcurrent reference signal input, the negative input of CMP3."
      },
      {
        "number": "6",
        "name": "P2.7/AD4/C3P/A0O",
        "type": "bidirectional",
        "description": "GPIO with configurable external interrupt INT1 input; ADC channel 4 input for the amplified bus current signal, positive input of CMP3 for bus-current overcurrent detection, and AMP0 output."
      },
      {
        "number": "7",
        "name": "P3.0/A0M",
        "type": "bidirectional",
        "description": "GPIO; negative input of AMP0 used to amplify the bus current signal."
      },
      {
        "number": "8",
        "name": "P3.1/A0P",
        "type": "bidirectional",
        "description": "GPIO; positive input of AMP0 used to amplify the bus current signal."
      },
      {
        "number": "9",
        "name": "P3.2/AD5/TIM0/VHALF",
        "type": "bidirectional",
        "description": "GPIO; over-temperature signal input, ADC channel 5 input, Advanced timer channel 4 output, and 1/2 VDD5 or 1/2 VREF reference output that requires an external 1uF capacitor."
      },
      {
        "number": "10",
        "name": "P3.3/AD6/RXD2/IR_RXD2",
        "type": "bidirectional",
        "description": "GPIO; ADC channel 6 input, UART2 receive (after function transfer) and infrared receive (after function transfer)."
      },
      {
        "number": "11",
        "name": "P3.4/AD7/TXD2/IR_TXD2",
        "type": "bidirectional",
        "description": "GPIO; analog speed control input on ADC channel 7, UART2 transmit (after function transfer) and infrared transmit (after function transfer)."
      },
      {
        "number": "12",
        "name": "P3.5/VREF",
        "type": "bidirectional",
        "description": "GPIO; ADC external reference voltage input or internal VREF output, requiring an external 1uF capacitor."
      },
      {
        "number": "13",
        "name": "AVSS",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "14",
        "name": "AVDD5",
        "type": "power_in",
        "description": "Analog power input, connected externally to VDD5 with a 1uF capacitor to AVSS."
      },
      {
        "number": "15",
        "name": "P3.6/XIN/ECLK",
        "type": "bidirectional",
        "description": "GPIO; fast clock crystal input for a 24MHz crystal, or external fast clock input."
      },
      {
        "number": "16",
        "name": "P3.7/XOUT",
        "type": "bidirectional",
        "description": "GPIO; fast clock crystal output for the 24MHz crystal."
      },
      {
        "number": "17",
        "name": "P0.0/SDA",
        "type": "bidirectional",
        "description": "GPIO with configurable external interrupt INT0 input; I2C SDA, open-collector output with configurable ~4.7K pull-up."
      },
      {
        "number": "18",
        "name": "P0.1/SCL/TIM4",
        "type": "bidirectional",
        "description": "GPIO; I2C SCL clock, open-collector output with configurable ~4.7K pull-up; Timer4 input or output."
      },
      {
        "number": "19",
        "name": "P0.2/LXIN",
        "type": "bidirectional",
        "description": "GPIO; 32768Hz crystal input."
      },
      {
        "number": "20",
        "name": "P0.3/LXOUT",
        "type": "bidirectional",
        "description": "GPIO; 32768Hz crystal output."
      },
      {
        "number": "21",
        "name": "P0.4/NSS",
        "type": "bidirectional",
        "description": "GPIO; SPI slave select port."
      },
      {
        "number": "22",
        "name": "P0.5/MOSI/TXD/IR_TXD",
        "type": "bidirectional",
        "description": "GPIO; SPI MOSI (master output or slave input), UART1 transmit (before function transfer) and infrared transmit (before function transfer)."
      },
      {
        "number": "23",
        "name": "P0.6/MISO/RXD/IR_RXD",
        "type": "bidirectional",
        "description": "GPIO; SPI MISO (master input or slave output), UART1 receive (before function transfer) and infrared receive (before function transfer)."
      },
      {
        "number": "24",
        "name": "P0.7/SCLK/TIM5/CXO",
        "type": "bidirectional",
        "description": "GPIO; SPI clock, Timer5 capture input or PWM output, and comparator output test pin."
      },
      {
        "number": "25",
        "name": "P1.0/TIM2",
        "type": "bidirectional",
        "description": "GPIO with configurable external interrupt INT1 input; Timer2 capture input or PWM output."
      },
      {
        "number": "26",
        "name": "P1.1/TIM3",
        "type": "bidirectional",
        "description": "GPIO with configurable external interrupt INT1 input; Timer3 capture input or PWM output."
      },
      {
        "number": "27",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected."
      },
      {
        "number": "28",
        "name": "H_PU",
        "type": "output",
        "description": "3P3N-mode predriver high-side U-phase voltage output with internal 47K pull-up."
      },
      {
        "number": "29",
        "name": "H_PV",
        "type": "output",
        "description": "3P3N-mode predriver high-side V-phase voltage output with internal 47K pull-up."
      },
      {
        "number": "30",
        "name": "H_PW",
        "type": "output",
        "description": "3P3N-mode predriver high-side W-phase voltage output with internal 47K pull-up."
      },
      {
        "number": "31",
        "name": "L_U",
        "type": "output",
        "description": "3P3N-mode predriver low-side U-phase voltage output with internal 47K pull-down."
      },
      {
        "number": "32",
        "name": "L_V",
        "type": "output",
        "description": "3P3N-mode predriver low-side V-phase voltage output with internal 47K pull-down."
      },
      {
        "number": "33",
        "name": "L_W",
        "type": "output",
        "description": "3P3N-mode predriver low-side W-phase voltage output with internal 47K pull-down."
      },
      {
        "number": "34",
        "name": "VBB",
        "type": "power_out",
        "description": "10V LDO output that requires an external 1uF to 4.7uF capacitor."
      },
      {
        "number": "35",
        "name": "VCC",
        "type": "power_in",
        "description": "Power input whose range depends on VCC_MODE: 5V to 24V in single-supply high-voltage mode (VCC_MODE=0, VDD5 from internal LDO), or 5V to 36V on VCC in dual-supply mode (VCC_MODE=1); requires an external 10uF or larger filter capacitor."
      },
      {
        "number": "36",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "37",
        "name": "VDD5",
        "type": "power_in",
        "description": "Medium-voltage supply input or internal 5V LDO output depending on VCC_MODE; requires an external 1uF to 4.7uF capacitor."
      },
      {
        "number": "38",
        "name": "VCC_MODE",
        "type": "input",
        "description": "Power-mode control input that selects the supply configuration described for the VCC pin."
      },
      {
        "number": "39",
        "name": "RSTN/FICEK",
        "type": "input",
        "description": "External reset input with internal pull-up; also the FICE debug interface clock."
      },
      {
        "number": "40",
        "name": "VDD18",
        "type": "power_out",
        "description": "1.85V LDO output that requires an external 1uF to 4.7uF capacitor."
      },
      {
        "number": "41",
        "name": "P1.2/FICED",
        "type": "bidirectional",
        "description": "GPIO with configurable external interrupt INT1 input; FICE debug interface data."
      },
      {
        "number": "42",
        "name": "P1.3/HBIAS/A3O",
        "type": "bidirectional",
        "description": "GPIO; Hall bias supply connected internally to VDD5 through a switch, capable of high-current output; AMP3 output."
      },
      {
        "number": "43",
        "name": "P1.4/C0P/A3M",
        "type": "bidirectional",
        "description": "GPIO with configurable external interrupt INT1 input and ~4.7K pull-up; Timer1 switch-type Hall0 input, differential Hall0/BEMF0 positive input, and AMP3 negative input."
      },
      {
        "number": "44",
        "name": "P1.5/C0M/A3P",
        "type": "bidirectional",
        "description": "GPIO with configurable external interrupt INT1 input and ~4.7K pull-up; differential Hall0/BEMF0 negative input and AMP3 positive input."
      },
      {
        "number": "45",
        "name": "P1.6/C1P/A1P",
        "type": "bidirectional",
        "description": "GPIO with configurable external interrupt INT1 input and ~4.7K pull-up; Timer1 switch-type Hall1 input, differential Hall1/BEMF1 positive input, and AMP1 positive input for phase current 1 voltage signal."
      },
      {
        "number": "46",
        "name": "P1.7/C1M/A1M",
        "type": "bidirectional",
        "description": "GPIO with configurable ~4.7K pull-up; differential Hall1/BEMF1 negative input and AMP1 negative input."
      },
      {
        "number": "47",
        "name": "P2.0/AD0/A1O",
        "type": "bidirectional",
        "description": "GPIO with configurable external interrupt INT1 input; ADC channel 0 input that samples the amplified phase current 1 signal, and AMP1 output."
      },
      {
        "number": "48",
        "name": "P2.1/C2P/A2P",
        "type": "bidirectional",
        "description": "GPIO with configurable external interrupt INT1 input and ~4.7K pull-up; Timer1 switch-type Hall2 input, differential Hall2/BEMF2 positive input, and AMP2 positive input for phase current 2 voltage signal."
      },
      {
        "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: The datasheet lists the QFN48 pinout once (Table 2-2 / Figure 2-2) for FU6831Q, and the ordering tab; The hint says QFN-48-EP(6x6), but the pin list contains only pins 1-48 and no exposed-pad pin or the; VDD5 is described as a medium-voltage supply input or an internal 5V LDO output depending on VCC_MOD",
          "exposed pad 49 added from the footprint"
        ],
        "pages_sent": 78,
        "cost_usd": 0.299,
        "at": "2026-10-29T00:30:38"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/5cd84e888994af36f0bbf78018c8ae6b.pdf",
        "pages": 292,
        "sha256": "d5a21e4e7fe9a48c",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 49,
        "described": 49,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "fu6831q.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.02,
          6.02,
          0.9
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "aa8d30a259212fba892d6af422d50a00690bb972e7480dff50d8e0c5b7329e43",
        "checked": "2026-10-29",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "fu6831q-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.02,
          6.02,
          0.9
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "52ad71f764ef4e12195bffa057bccfed0c93c1726a09fed93cfc3afe82a39119",
        "checked": "2026-10-29",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}