DRV8424EPWPR

{
  "slug": "drv8424epwpr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Stepper Motor Driver, HTSSOP-28-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "motor driver ics",
    "drv8424epwpr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "drv8424epwpr.kicad_sym",
    "drv8424epwpr.kicad_mod",
    "drv8424epwpr.glb",
    "drv8424epwpr.step",
    "drv8424epwpr.lbr",
    "docs/hero.png",
    "docs/drv8424epwpr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "component": {
    "mpn": "DRV8424EPWPR",
    "manufacturer": "Texas Instruments",
    "package": "HTSSOP-28-EP",
    "pin_count": 29,
    "category": "Motor Driver ICs",
    "subcategory": "Stepper Motor Driver",
    "datasheet": "https://www.ti.com/cn/lit/gpn/drv8424e",
    "parts": {
      "symbol": "drv8424epwpr.kicad_sym",
      "footprint": "drv8424epwpr.kicad_mod",
      "model_3d": "drv8424epwpr-etched.glb",
      "model_3d_plain": "drv8424epwpr.glb",
      "model_3d_step": "drv8424epwpr-etched.step",
      "model_3d_step_plain": "drv8424epwpr.step",
      "lbr": "drv8424epwpr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2862906",
      "digikey": "296-DRV8424EPWPRTR-ND",
      "mouser": "595-DRV8424EPWPR"
    },
    "distributor_check": {
      "checked_at": "2026-09-26T22:55:58Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-DRV8424EPWPRTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-DRV8424EPWPR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VCP",
        "type": "power_out",
        "description": "Charge pump output; connect 0.22\u00b5F 16V ceramic capacitor to VM for high-side gate driver power."
      },
      {
        "number": "2",
        "name": "VM",
        "type": "power_in",
        "description": "Motor power supply (4.5-33V); bypass each pin with 0.01\u00b5F ceramic capacitor and bulk capacitor to PGND per section 9."
      },
      {
        "number": "3",
        "name": "PGND",
        "type": "power_in",
        "description": "Power supply ground connection."
      },
      {
        "number": "4",
        "name": "AOUT1",
        "type": "output",
        "description": "Motor winding A output capable of 4A peak current (DRV8424E per page 1)."
      },
      {
        "number": "5",
        "name": "AOUT1",
        "type": "output",
        "description": "Motor winding A output capable of 4A peak current; parallel connection to pin 4 for current distribution."
      },
      {
        "number": "6",
        "name": "AOUT2",
        "type": "output",
        "description": "Motor winding A output capable of 4A peak current."
      },
      {
        "number": "7",
        "name": "AOUT2",
        "type": "output",
        "description": "Motor winding A output capable of 4A peak current; parallel connection to pin 6 for current distribution."
      },
      {
        "number": "8",
        "name": "BOUT2",
        "type": "output",
        "description": "Motor winding B output capable of 4A peak current."
      },
      {
        "number": "9",
        "name": "BOUT2",
        "type": "output",
        "description": "Motor winding B output capable of 4A peak current; parallel connection to pin 8 for current distribution."
      },
      {
        "number": "10",
        "name": "BOUT1",
        "type": "output",
        "description": "Motor winding B output capable of 4A peak current."
      },
      {
        "number": "11",
        "name": "BOUT1",
        "type": "output",
        "description": "Motor winding B output capable of 4A peak current; parallel connection to pin 10 for current distribution."
      },
      {
        "number": "12",
        "name": "PGND",
        "type": "power_in",
        "description": "Power supply ground connection."
      },
      {
        "number": "13",
        "name": "VM",
        "type": "power_in",
        "description": "Motor power supply (4.5-33V); bypass each pin with 0.01\u00b5F ceramic capacitor and bulk capacitor to PGND per section 9."
      },
      {
        "number": "14",
        "name": "GND",
        "type": "power_in",
        "description": "Logic circuit ground; connect to system ground."
      },
      {
        "number": "15",
        "name": "DVDD",
        "type": "power_in",
        "description": "Logic supply voltage (4.75-5.25V typical, section 6.5); bypass with 0.47-1\u00b5F X7R ceramic capacitor rated 6.3V or 10V."
      },
      {
        "number": "16",
        "name": "nFAULT",
        "type": "tri_state",
        "description": "Fault indicator output (open-drain); pulled to logic low on VM UVLO, VCP UVLO, overcurrent (4A threshold), or overtemperature faults; requires external pull-up resistor."
      },
      {
        "number": "17",
        "name": "VREFB",
        "type": "input",
        "description": "Bridge B current reference voltage input (0.05-2.64V per section 6.3); sets full-scale chopping current via IREG = VREFB / 1.32 V/A."
      },
      {
        "number": "18",
        "name": "VREFA",
        "type": "input",
        "description": "Bridge A current reference voltage input (0.05-3.3V per section 6.3); sets full-scale chopping current via IREG = VREFA / 1.32 V/A."
      },
      {
        "number": "19",
        "name": "TOFF",
        "type": "input",
        "description": "PWM turn-off time selection (four-level pin): 7\u00b5s (GND), 16\u00b5s (DVDD), 24\u00b5s (high impedance), or 32\u00b5s (330k\u03a9 to GND) per table 7-4 page 19."
      },
      {
        "number": "20",
        "name": "BDECAY",
        "type": "input",
        "description": "Bridge B decay mode selection (four-level pin); selects smart-tune dynamic, smart-tune ripple, hybrid, or fast decay modes per table 7-5 page 19."
      },
      {
        "number": "21",
        "name": "ADECAY",
        "type": "input",
        "description": "Bridge A decay mode selection (four-level pin); selects smart-tune dynamic, smart-tune ripple, hybrid, or fast decay modes per table 7-5 page 19."
      },
      {
        "number": "22",
        "name": "BPH",
        "type": "input",
        "description": "Bridge B phase input (PH/EN interface); logic high drives current from BOUT1 to BOUT2; logic low reverses direction per table 7-2 page 17."
      },
      {
        "number": "23",
        "name": "BEN",
        "type": "input",
        "description": "Bridge B enable input (PH/EN interface); logic high enables bridge; logic low disables bridge to high impedance per table 7-2 page 17."
      },
      {
        "number": "24",
        "name": "APH",
        "type": "input",
        "description": "Bridge A phase input (PH/EN interface); logic high drives current from AOUT1 to AOUT2; logic low reverses direction per table 7-2 page 17."
      },
      {
        "number": "25",
        "name": "AEN",
        "type": "input",
        "description": "Bridge A enable input (PH/EN interface); logic high enables bridge; logic low disables bridge to high impedance per table 7-2 page 17."
      },
      {
        "number": "26",
        "name": "nSLEEP",
        "type": "input",
        "description": "Sleep mode control input (internal 200k\u03a9 pull-down); logic high enables device; logic low enters low-power sleep mode (2\u00b5A per page 10); pulse clears fault latches per section 7.4.3."
      },
      {
        "number": "27",
        "name": "CPL",
        "type": "power_in",
        "description": "Charge pump lower switching node; connect X7R 0.022\u00b5F ceramic capacitor (VM rated) between CPL and CPH per section 7.3.5."
      },
      {
        "number": "28",
        "name": "CPH",
        "type": "power_out",
        "description": "Charge pump upper switching node; connect X7R 0.022\u00b5F ceramic capacitor (VM rated) between CPH and CPL for gate driver supply per section 7.3.5."
      },
      {
        "number": "29",
        "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-4-6",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "exposed pad 29 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint"
        ],
        "pages_sent": 53,
        "cost_usd": 0.6327,
        "at": "2026-09-26T22:55:41"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/drv8424e",
        "pages": 53,
        "sha256": "61208cc09b733204",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 29,
        "described": 29,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    }
  }
}