DRV8424RGER

{
  "slug": "drv8424rger",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Stepper Motor Driver, VQFN-24-EP(4x4). Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "motor driver ics",
    "drv8424rger",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "drv8424rger.kicad_sym",
    "drv8424rger.kicad_mod",
    "drv8424rger.glb",
    "drv8424rger.step",
    "drv8424rger.lbr",
    "docs/hero.png",
    "docs/drv8424rger-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "component": {
    "mpn": "DRV8424RGER",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-24-EP(4x4)",
    "pin_count": 25,
    "category": "Motor Driver ICs",
    "subcategory": "Stepper Motor Driver",
    "datasheet": "https://www.ti.com/cn/lit/gpn/drv8424",
    "parts": {
      "symbol": "drv8424rger.kicad_sym",
      "footprint": "drv8424rger.kicad_mod",
      "model_3d": "drv8424rger-etched.glb",
      "model_3d_plain": "drv8424rger.glb",
      "model_3d_step": "drv8424rger-etched.step",
      "model_3d_step_plain": "drv8424rger.step",
      "lbr": "drv8424rger.lbr"
    },
    "distributor_links": {
      "lcsc": "C1518725"
    },
    "pins": [
      {
        "number": "1",
        "name": "VM",
        "type": "power_in",
        "description": "Motor power supply pin (4.5V to 33V); bypass to PGND with 0.01µF and bulk capacitor."
      },
      {
        "number": "2",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground return; connect to system ground."
      },
      {
        "number": "3",
        "name": "AOUT1",
        "type": "output",
        "description": "Phase A motor winding output; connect to stepper motor winding A."
      },
      {
        "number": "4",
        "name": "AOUT2",
        "type": "output",
        "description": "Phase A motor winding output; connect to stepper motor winding A."
      },
      {
        "number": "5",
        "name": "BOUT2",
        "type": "output",
        "description": "Phase B motor winding output; connect to stepper motor winding B."
      },
      {
        "number": "6",
        "name": "BOUT1",
        "type": "output",
        "description": "Phase B motor winding output; connect to stepper motor winding B."
      },
      {
        "number": "7",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground return; connect to system ground."
      },
      {
        "number": "8",
        "name": "VM",
        "type": "power_in",
        "description": "Motor power supply pin (4.5V to 33V); bypass to PGND with 0.01µF and bulk capacitor."
      },
      {
        "number": "9",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground; connect to system ground."
      },
      {
        "number": "10",
        "name": "DVDD",
        "type": "power_out",
        "description": "Internal regulated logic supply (4.75V to 5.25V nominal at 25°C); bypass to GND with 0.47µF to 1µF X7R capacitor."
      },
      {
        "number": "11",
        "name": "nFAULT",
        "type": "tri_state",
        "description": "Open-drain fault output, pulled low under VM UVLO, VCP UVLO, OCP, or thermal shutdown; requires external pull-up resistor."
      },
      {
        "number": "12",
        "name": "VREF",
        "type": "power_in",
        "description": "Current reference input (0.05V to 3.3V for DRV8424); full-scale current IFS = VREF / 1.32 V/A."
      },
      {
        "number": "13",
        "name": "M0",
        "type": "input",
        "description": "Microstep mode select pin with internal pull-down; configure with M1 for stepping resolution from full-step to 1/256 microstep."
      },
      {
        "number": "14",
        "name": "TOFF",
        "type": "input",
        "description": "PWM off-time setting (4-level input); sets tOFF to 7µs, 16µs, 24µs, or 32µs, or ripple current in smart tuning ripple control mode."
      },
      {
        "number": "15",
        "name": "DECAY1",
        "type": "input",
        "description": "Decay mode select pin with internal pull-down; configure with DECAY0 for slow/mixed/fast/smart-tuning decay modes."
      },
      {
        "number": "16",
        "name": "DECAY0",
        "type": "input",
        "description": "Decay mode select pin with internal pull-down; configure with DECAY1 for slow/mixed/fast/smart-tuning decay modes."
      },
      {
        "number": "17",
        "name": "M1",
        "type": "input",
        "description": "Microstep mode select pin (4-level input); configure with M0 for stepping resolution from full-step to 1/256 microstep."
      },
      {
        "number": "18",
        "name": "STEP",
        "type": "input",
        "description": "Step clock input with internal pull-down; rising edge advances motor one microstep; maximum frequency 500kHz."
      },
      {
        "number": "19",
        "name": "DIR",
        "type": "input",
        "description": "Direction control input with internal pull-down; logic level sets motor rotation direction."
      },
      {
        "number": "20",
        "name": "ENABLE",
        "type": "input",
        "description": "Output enable control with internal pull-up to DVDD; logic low disables outputs, high enables; selects OCP/OTSD response mode."
      },
      {
        "number": "21",
        "name": "nSLEEP",
        "type": "input",
        "description": "Sleep mode control input with internal pull-down; high enables operation, low enters 2µA sleep mode; pulse clears latched faults."
      },
      {
        "number": "22",
        "name": "CPL",
        "type": "passive",
        "description": "Charge pump flying capacitor negative terminal; connect 0.022µF X7R capacitor (rated for VM) between CPL and CPH."
      },
      {
        "number": "23",
        "name": "CPH",
        "type": "passive",
        "description": "Charge pump flying capacitor positive terminal; connect 0.022µF X7R capacitor (rated for VM) between CPH and CPL."
      },
      {
        "number": "24",
        "name": "VCP",
        "type": "power_out",
        "description": "Charge pump output (VM + 5V nominal); bypass to VM with 0.22µF 16V X7R ceramic capacitor."
      },
      {
        "number": "25",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "exposed pad 25 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint"
        ],
        "pages_sent": 56,
        "cost_usd": 0.5122,
        "at": "2026-09-23T03:30:16"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/drv8424",
        "pages": 56,
        "sha256": "d2894da743bf3f58",
        "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": "drv8424rger.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.0,
          4.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "096fc110543e6d324c5120c2d38e3dca87a389da9b6fac234f1fe40856295ef4",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "drv8424rger-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.0,
          4.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "48b51893ab098704c872f407a4a942ee61bfb9e942b88635cdc59102a4e0632c",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}