AW8646QNR

{
  "schema_version": 1,
  "type": "component",
  "slug": "aw8646qnr",
  "title": "AW8646QNR",
  "brief": "AWINIC Shanghai Awinic Tech Stepper Motor Driver, QFN-24-EP(4x4). 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",
    "motor driver ics",
    "aw8646qnr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "AW8646QNR",
    "manufacturer": "AWINIC Shanghai Awinic Tech",
    "package": "QFN-24-EP(4x4)",
    "pin_count": 25,
    "category": "Motor Driver ICs",
    "subcategory": "Stepper Motor Driver",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588893596241547264",
    "parts": {
      "symbol": "aw8646qnr.kicad_sym",
      "footprint": "aw8646qnr.kicad_mod",
      "model_3d": "aw8646qnr-hero.glb",
      "model_3d_plain": "aw8646qnr-etched.glb",
      "model_3d_step": "aw8646qnr-etched.step",
      "model_3d_step_plain": "aw8646qnr.step",
      "lbr": "aw8646qnr.lbr"
    },
    "distributor_links": {
      "lcsc": "C401028"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T00:50:05Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "AO1",
        "type": "output",
        "description": "H-bridge A output; continuous phase node voltage limited to -0.3V to (VDD+0.6)V."
      },
      {
        "number": "2",
        "name": "ASEN",
        "type": "passive",
        "description": "Sense output of bridge A; if current regulation is not required it must connect to GND, and continuous input is limited to -0.6V to 0.6V."
      },
      {
        "number": "3",
        "name": "AO2",
        "type": "output",
        "description": "H-bridge A output; continuous phase node voltage limited to -0.3V to (VDD+0.6)V."
      },
      {
        "number": "4",
        "name": "BO2",
        "type": "output",
        "description": "H-bridge B output; continuous phase node voltage limited to -0.3V to (VDD+0.6)V."
      },
      {
        "number": "5",
        "name": "BSEN",
        "type": "passive",
        "description": "Sense output of bridge B; if current regulation is not required it must connect to GND, and continuous input is limited to -0.6V to 0.6V."
      },
      {
        "number": "6",
        "name": "BO1",
        "type": "output",
        "description": "H-bridge B output; continuous phase node voltage limited to -0.3V to (VDD+0.6)V."
      },
      {
        "number": "7",
        "name": "nFAULT",
        "type": "output",
        "description": "Pulled low when a failure occurs; open-drain output that requires an external pull-up (R1 >5kΩ to VCC per Table 1)."
      },
      {
        "number": "8",
        "name": "MODE0",
        "type": "input",
        "description": "Tri-level input, low bit of the step mode setting (full step up to 1/32 step) per Table 2."
      },
      {
        "number": "9",
        "name": "MODE1",
        "type": "input",
        "description": "Tri-level input, high bit of the step mode setting (full step up to 1/32 step) per Table 2."
      },
      {
        "number": "10",
        "name": "TOFF",
        "type": "input",
        "description": "Tri-level input setting the PWM current-control off-time: Hi-Z 10 µs, GND 20 µs, VREG 30 µs per Table 3."
      },
      {
        "number": "11",
        "name": "nEN",
        "type": "input",
        "description": "Driver enable input; logic low enables the device outputs and logic high disables them."
      },
      {
        "number": "12",
        "name": "STEP",
        "type": "input",
        "description": "Step input; a rising or falling edge (depending on step mode) advances the sequencer by one step."
      },
      {
        "number": "13",
        "name": "DIR",
        "type": "input",
        "description": "Direction input that sets the direction of stepping."
      },
      {
        "number": "14",
        "name": "VREF",
        "type": "power_in",
        "description": "Full-scale current reference input whose voltage sets the full-scale current; short to VREG to use the internal 3.3V reference, with absolute maximum range -0.3V to 3.6V."
      },
      {
        "number": "15",
        "name": "VDD",
        "type": "power_in",
        "description": "Motor power supply input, operating range 3V to 12V (absolute maximum 16V)."
      },
      {
        "number": "16",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect; unused pin."
      },
      {
        "number": "17",
        "name": "VREG",
        "type": "power_out",
        "description": "Internal regulator output providing the logic supply, 3.13V to 3.47V (3.3V typical) for VDD >4V and 0 to 1 mA load; requires a 2.2µF, 10V ceramic capacitor to GND."
      },
      {
        "number": "18",
        "name": "GND",
        "type": "power_in",
        "description": "Ground; both this pin and the device thermal pad must be connected to ground."
      },
      {
        "number": "19",
        "name": "ADECAY",
        "type": "input",
        "description": "Adaptive Decay mode control: logic high enables Adaptive Decay, logic low selects decay modes via D0 and D1; state is only evaluated when exiting sleep mode."
      },
      {
        "number": "20",
        "name": "T0",
        "type": "input",
        "description": "Tri-level input that scales the torque current from 100% to 12.5% in 12.5% steps together with T1 per Table 4."
      },
      {
        "number": "21",
        "name": "T1",
        "type": "input",
        "description": "Tri-level input that scales the torque current from 100% to 12.5% in 12.5% steps together with T0 per Table 4."
      },
      {
        "number": "22",
        "name": "D0",
        "type": "input",
        "description": "Tri-level decay mode setting pin, combined with D1 per Table 5."
      },
      {
        "number": "23",
        "name": "nSLEEP",
        "type": "input",
        "description": "Sleep mode input; logic high enables the device and logic low enters low-power sleep mode; internal pull-down."
      },
      {
        "number": "24",
        "name": "D1",
        "type": "input",
        "description": "Tri-level decay mode setting pin, combined with D0 per Table 5."
      },
      {
        "number": "25",
        "name": "EPAD",
        "type": "power_in",
        "description": "Thermal pad that must be connected to GND."
      }
    ],
    "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: Figure 1 pin label renders as 'TADECAY' (garbled); the pin definition table and Figure 3 read ADECAY; Tri-level pins are typed as input (KiCad has no tri-level class); they can be driven low, high, or l; nFAULT is an open-drain output; typed as output since KiCad open_collector was not in the allowed li"
        ],
        "pages_sent": 23,
        "cost_usd": 0.0961,
        "at": "2026-10-19T00:47:58"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588893596241547264",
        "pages": 23,
        "sha256": "1964a5438f8c1015",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 25,
        "described": 25,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "aw8646qnr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4,
          4,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "f7d256794c4147daf24dcae0554fae18510315e565ad1e239b475be7fef80d8b",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "aw8646qnr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4,
          4,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "7680bb32b5cccf55e42bf99f6a652410f7c04315619cfbb26650c398a04f5722",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "AWINIC Shanghai Awinic Tech",
      "Package": "QFN-24-EP(4x4)",
      "Category": "Motor Driver ICs",
      "Pins": "25"
    },
    "appearance": {
      "contacts": {
        "quote": "4. No via in traces from IC pin VDD through C2/C1 to IC pin GND, keep the trace as short as possible; 5. Try to provide a separate short and thick power line to the device, the copper width is recomme",
        "page": 18,
        "doc": "ds.pdf",
        "material": "copper"
      },
      "version": 1,
      "datasheet_sha256": "1964a5438f8c10157d118a80064d69f972b80fb09013a102afd349b565bde49b"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "1964a5438f8c10157d118a80064d69f972b80fb09013a102afd349b565bde49b",
      "rows": [
        {
          "name": "VDD operating voltage",
          "symbol": "VDD",
          "kind": "electrical",
          "unit": "V",
          "min": 3,
          "typ": 5,
          "max": 12,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "VDD operating supply current",
          "symbol": "IVDD",
          "kind": "electrical",
          "unit": "mA",
          "min": 1,
          "typ": 2.5,
          "max": 4,
          "conditions": "VDD = 5 V, excluding winding current, nSLEEP = 1, nEN = 0 or 1",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "VDD sleep mode supply current",
          "symbol": "IVDDQ",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 0.1,
          "max": 1,
          "conditions": "VDD = 5 V, nSLEEP = 0, nEN = 0 or 1",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "VREG voltage",
          "symbol": "VREG",
          "kind": "electrical",
          "unit": "V",
          "min": 3.13,
          "typ": 3.3,
          "max": 3.47,
          "conditions": "VDD > 4 V, IOUT = 0 A to 1 mA",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Input logic low voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 0.45,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Input logic high voltage",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 1.3,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Input logic low current",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "A",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "VIN = 0 V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Input logic high current",
          "symbol": "IIH",
          "kind": "electrical",
          "unit": "A",
          "min": 1,
          "typ": null,
          "max": 40,
          "conditions": "VIN = 5 V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Tri-level input logic low voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 0.45,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Tri-level input logic high voltage",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 1.3,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Tri-level input logic low current",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "A",
          "min": -22,
          "typ": null,
          "max": -1,
          "conditions": "VIN = 0 V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Tri-level input logic high current",
          "symbol": "IIH",
          "kind": "electrical",
          "unit": "A",
          "min": 1,
          "typ": null,
          "max": 40,
          "conditions": "VIN = 5 V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Output logic high leakage",
          "symbol": "IOH",
          "kind": "electrical",
          "unit": "A",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "VO = 3.3 V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Power supply voltage (VDD)",
          "symbol": "VDD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 16,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Power supply voltage ramp rate (VDD)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V/s",
          "min": 0,
          "typ": null,
          "max": 2,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Internal regulator voltage",
          "symbol": "VREG",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 3.6,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Analog input pin voltage",
          "symbol": "VREF",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 3.6,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Control pin voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "nEN, STEP, DIR, T0, T1, MODE0, MODE1, D0, D1, TOFF, nSLEEP, nFAULT, ADECAY",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Continuous phase node pin voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "AO1, AO2, BO1, BO2; max printed as (VDD+0.6)V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Continuous shunt amplifier input pin voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.6,
          "typ": null,
          "max": 0.6,
          "conditions": "ASEN, BSEN",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "ESD HBM (Human Body Model)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": -4,
          "typ": null,
          "max": 4,
          "conditions": "Human Body Model",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "ESD CDM (Charge Device Model)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": -1.5,
          "typ": null,
          "max": 1.5,
          "conditions": "Charge Device Model",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Latch-up +IT",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "JEDEC STANDARD NO.78E",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Latch-up -IT",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -200,
          "typ": null,
          "max": null,
          "conditions": "JEDEC STANDARD NO.78E",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Operating free-air temperature range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Maximum operating junction temperature",
          "symbol": "TJMAX",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 165,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Lead temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "soldering 10 seconds",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Sleep time",
          "symbol": "tSLEEP",
          "kind": "timing",
          "unit": "ms",
          "min": null,
          "typ": 0.7,
          "max": null,
          "conditions": "nSLEEP = 0 to sleep mode",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Wake time",
          "symbol": "tWAKE",
          "kind": "timing",
          "unit": "ms",
          "min": null,
          "typ": 0.5,
          "max": null,
          "conditions": "nSLEEP = 1 to output transition",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Power-on time",
          "symbol": "tON",
          "kind": "timing",
          "unit": "ms",
          "min": null,
          "typ": 0.5,
          "max": null,
          "conditions": "VDD > VUVLO rising to output transition",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Pulldown resistance (nEN, STEP, DIR, ADECAY)",
          "symbol": "RPD",
          "kind": "electrical",
          "unit": "kΩ",
          "min": null,
          "typ": 200,
          "max": null,
          "conditions": "nEN, STEP, DIR, ADECAY",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Pulldown resistance (nSLEEP)",
          "symbol": "RPD",
          "kind": "electrical",
          "unit": "kΩ",
          "min": null,
          "typ": 500,
          "max": null,
          "conditions": "nSLEEP",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Input deglitch time",
          "symbol": "tDEG",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 200,
          "max": null,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Propagation delay",
          "symbol": "tPROP",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 600,
          "max": null,
          "conditions": "STEP edge to current change",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Input logic hysteresis",
          "symbol": "VHYS",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Tri-level input Hi-Z voltage",
          "symbol": "VIZ",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.9,
          "max": null,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Tri-level input hysteresis",
          "symbol": "VHYS",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Tri-level pulldown resistance",
          "symbol": "RPD",
          "kind": "electrical",
          "unit": "kΩ",
          "min": null,
          "typ": 180,
          "max": null,
          "conditions": "To GND",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Tri-level pullup resistance",
          "symbol": "RPU",
          "kind": "electrical",
          "unit": "kΩ",
          "min": null,
          "typ": 480,
          "max": null,
          "conditions": "To VREG",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Output logic low voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
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