DRV8434SRGER

{
  "slug": "drv8434srger",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Stepper Motor Driver, VQFN-24(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "motor driver ics",
    "drv8434srger",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "drv8434srger.kicad_sym",
    "drv8434srger.kicad_mod",
    "drv8434srger.glb",
    "drv8434srger.step",
    "drv8434srger.lbr",
    "docs/hero.png",
    "docs/drv8434srger-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "drv8434srger-hero.glb",
    "drv8434srger-hero.overlay.json",
    "drv8434srger-etched.glb"
  ],
  "component": {
    "mpn": "DRV8434SRGER",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-24(4x4)",
    "pin_count": 25,
    "category": "Motor Driver ICs",
    "subcategory": "Stepper Motor Driver",
    "datasheet": "https://www.ti.com/cn/lit/gpn/drv8434s",
    "parts": {
      "symbol": "drv8434srger.kicad_sym",
      "footprint": "drv8434srger.kicad_mod",
      "model_3d": "drv8434srger-hero.glb",
      "model_3d_plain": "drv8434srger-etched.glb",
      "model_3d_step": "drv8434srger-etched.step",
      "model_3d_step_plain": "drv8434srger.step",
      "lbr": "drv8434srger.lbr"
    },
    "distributor_links": {
      "lcsc": "C3681236",
      "digikey": "296-DRV8434SRGERTR-ND",
      "mouser": "595-DRV8434SRGER"
    },
    "distributor_check": {
      "checked_at": "2026-10-21T00:10:32Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-DRV8434SRGERTR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-DRV8434SRGER",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VM",
        "type": "power_in",
        "description": "Motor supply pin, operating range 4.5 V to 48 V, bypassed to PGND with a 0.01 µF ceramic capacitor rated for VM placed close to the pin and a bulk capacitor rated for VM."
      },
      {
        "number": "2",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground pin, connect to system ground."
      },
      {
        "number": "3",
        "name": "AOUT1",
        "type": "output",
        "description": "Winding A output, connect to a stepper motor winding; continuous phase-node voltage is limited to -1 V to VM + 1 V."
      },
      {
        "number": "4",
        "name": "AOUT2",
        "type": "output",
        "description": "Winding A output, connect to a stepper motor winding; continuous phase-node voltage is limited to -1 V to VM + 1 V."
      },
      {
        "number": "5",
        "name": "BOUT2",
        "type": "output",
        "description": "Winding B output, connect to a stepper motor winding; continuous phase-node voltage is limited to -1 V to VM + 1 V."
      },
      {
        "number": "6",
        "name": "BOUT1",
        "type": "output",
        "description": "Winding B output, connect to a stepper motor winding; continuous phase-node voltage is limited to -1 V to VM + 1 V."
      },
      {
        "number": "7",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground pin, connect to system ground."
      },
      {
        "number": "8",
        "name": "VM",
        "type": "power_in",
        "description": "Motor supply pin, operating range 4.5 V to 48 V, bypassed to PGND with a 0.01 µF ceramic capacitor rated for VM placed close to the pin and a bulk capacitor rated for VM."
      },
      {
        "number": "9",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground pin, connect to system ground."
      },
      {
        "number": "10",
        "name": "DVDD",
        "type": "power_out",
        "description": "Logic supply from the internal linear regulator (nominal 5 V, up to 2 mA load), bypassed to GND with a 0.47 µF to 1 µF X7R 6.3 V or 10 V ceramic capacitor."
      },
      {
        "number": "11",
        "name": "nFAULT",
        "type": "output",
        "description": "Open-drain fault indicator, pulled low on a fault and requiring an external pull-up to 5 V, 3.3 V or 1.8 V; open-drain output current is limited to 10 mA."
      },
      {
        "number": "12",
        "name": "VREF",
        "type": "power_in",
        "description": "Current-setting reference input, maximum 3.3 V; can be driven from DVDD through a resistor divider."
      },
      {
        "number": "13",
        "name": "nSCS",
        "type": "input",
        "description": "Active-low serial chip select with internal pull-up to DVDD."
      },
      {
        "number": "14",
        "name": "VSDO",
        "type": "power_in",
        "description": "Supply pin for the SDO output, connected to an external voltage chosen to match the required logic level."
      },
      {
        "number": "15",
        "name": "SDO",
        "type": "output",
        "description": "Push-pull serial data output, shifting data out on the rising edge of SCLK."
      },
      {
        "number": "16",
        "name": "SDI",
        "type": "input",
        "description": "Serial data input, captured on the falling edge of SCLK."
      },
      {
        "number": "17",
        "name": "SCLK",
        "type": "input",
        "description": "Serial clock input; data is shifted out and captured on the rising and falling edges of this pin."
      },
      {
        "number": "18",
        "name": "STEP",
        "type": "input",
        "description": "Step input, each rising edge advances the indexer by one step; internal pull-down resistor."
      },
      {
        "number": "19",
        "name": "DIR",
        "type": "input",
        "description": "Direction input whose logic level sets the step direction; internal pull-down resistor."
      },
      {
        "number": "20",
        "name": "ENABLE",
        "type": "input",
        "description": "Logic low disables the outputs (high-impedance), logic high enables them; internal pull-up to DVDD."
      },
      {
        "number": "21",
        "name": "nSLEEP",
        "type": "input",
        "description": "Sleep mode input: logic high enables the device, logic low enters low-power sleep; internal pull-down, and a low pulse clears latched faults."
      },
      {
        "number": "22",
        "name": "CPL",
        "type": "passive",
        "description": "Charge pump negative switching node; connect a low-ESR X7R 0.022 µF ceramic capacitor rated for VM between CPH and CPL."
      },
      {
        "number": "23",
        "name": "CPH",
        "type": "passive",
        "description": "Charge pump switch node; connect a low-ESR X7R 0.022 µF ceramic capacitor rated for VM between CPH and CPL."
      },
      {
        "number": "24",
        "name": "VCP",
        "type": "power_out",
        "description": "Charge pump output, connect to VM through a X7R 0.22 µF 16 V 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 0.3",
      "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: Datasheet describes nFAULT as open-drain (漏极开路); the schema enum has no open-drain class, so it is m; Datasheet lists CPL and CPH with type '电源' (power), but they are charge-pump flying-capacitor switch; Pins VM (1, 8), PGND (2, 7) are listed on two physical pins each in the VQFN table; each physical pi",
          "exposed pad 25 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint"
        ],
        "pages_sent": 46,
        "cost_usd": 0.1862,
        "at": "2026-10-21T00:07:27"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/drv8434s",
        "pages": 72,
        "sha256": "25f2e8540e04853a",
        "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": "drv8434srger.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": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "drv8434srger-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": "1cedcafacbcb891b924f7f44a7fb7d289e1645332a305d81c0ea02d9fdebe1c3",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}