DRV8434EPWPR

{
  "schema_version": 1,
  "type": "component",
  "slug": "drv8434epwpr",
  "title": "DRV8434EPWPR",
  "brief": "Texas Instruments Stepper Motor Driver, HTSSOP-28-EP. 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",
    "drv8434epwpr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "DRV8434EPWPR",
    "manufacturer": "Texas Instruments",
    "package": "HTSSOP-28-EP",
    "pin_count": 29,
    "category": "Motor Driver ICs",
    "subcategory": "Stepper Motor Driver",
    "datasheet": "https://www.ti.com/lit/ds/symlink/drv8434e.pdf",
    "parts": {
      "symbol": "drv8434epwpr.kicad_sym",
      "footprint": "drv8434epwpr.kicad_mod",
      "model_3d": "drv8434epwpr-hero.glb",
      "model_3d_plain": "drv8434epwpr-etched.glb",
      "model_3d_step": "drv8434epwpr-etched.step",
      "model_3d_step_plain": "drv8434epwpr.step",
      "lbr": "drv8434epwpr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2861228",
      "digikey": "296-DRV8434EPWPRTR-ND",
      "mouser": "595-DRV8434EPWPR"
    },
    "distributor_check": {
      "checked_at": "2026-11-05T21:35:50Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-DRV8434EPWPRTR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-DRV8434EPWPR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VCP",
        "type": "power_out",
        "description": "Charge pump output; connect a X7R, 0.22-μF, 16-V ceramic capacitor to VM."
      },
      {
        "number": "2",
        "name": "VM",
        "type": "power_in",
        "description": "Power supply for the motor supply voltage; bypass to PGND with two 0.01-μF ceramic capacitors (one per pin) plus a bulk capacitor rated for VM."
      },
      {
        "number": "3",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground; connect to system ground."
      },
      {
        "number": "4",
        "name": "AOUT1",
        "type": "output",
        "description": "Winding A output; connect to motor winding."
      },
      {
        "number": "5",
        "name": "AOUT1",
        "type": "output",
        "description": "Winding A output; connect to motor winding."
      },
      {
        "number": "6",
        "name": "AOUT2",
        "type": "output",
        "description": "Winding A output; connect to motor winding."
      },
      {
        "number": "7",
        "name": "AOUT2",
        "type": "output",
        "description": "Winding A output; connect to motor winding."
      },
      {
        "number": "8",
        "name": "BOUT2",
        "type": "output",
        "description": "Winding B output; connect to motor winding."
      },
      {
        "number": "9",
        "name": "BOUT2",
        "type": "output",
        "description": "Winding B output; connect to motor winding."
      },
      {
        "number": "10",
        "name": "BOUT1",
        "type": "output",
        "description": "Winding B output; connect to motor winding."
      },
      {
        "number": "11",
        "name": "BOUT1",
        "type": "output",
        "description": "Winding B output; connect to motor winding."
      },
      {
        "number": "12",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground; connect to system ground."
      },
      {
        "number": "13",
        "name": "VM",
        "type": "power_in",
        "description": "Power supply for the motor supply voltage; bypass to PGND with two 0.01-μF ceramic capacitors (one per pin) plus a bulk capacitor rated for VM."
      },
      {
        "number": "14",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground; connect to system ground."
      },
      {
        "number": "15",
        "name": "DVDD",
        "type": "power_in",
        "description": "Logic supply voltage; connect a X7R, 0.47-μF to 1-μF, 6.3-V or 10-V rated ceramic capacitor to GND."
      },
      {
        "number": "16",
        "name": "nFAULT",
        "type": "output",
        "description": "Fault indication open-drain output, pulled logic low during a fault condition and requiring an external pullup resistor."
      },
      {
        "number": "17",
        "name": "VREFB",
        "type": "input",
        "description": "Reference voltage input; the voltage on this pin sets the full-scale chopping current in H-bridge B."
      },
      {
        "number": "18",
        "name": "VREFA",
        "type": "input",
        "description": "Reference voltage input; the voltage on this pin sets the full-scale chopping current in H-bridge A."
      },
      {
        "number": "19",
        "name": "TOFF",
        "type": "input",
        "description": "Quad-level pin that sets the decay mode off-time during current chopping."
      },
      {
        "number": "20",
        "name": "BDECAY",
        "type": "input",
        "description": "Quad-level decay mode setting pin for bridge B."
      },
      {
        "number": "21",
        "name": "ADECAY",
        "type": "input",
        "description": "Quad-level decay mode setting pin for bridge A."
      },
      {
        "number": "22",
        "name": "BPH",
        "type": "input",
        "description": "Bridge B phase input; logic high drives current from BOUT1 to BOUT2."
      },
      {
        "number": "23",
        "name": "BEN",
        "type": "input",
        "description": "Bridge B enable input; logic high enables bridge B and logic low disables the bridge to Hi-Z."
      },
      {
        "number": "24",
        "name": "APH",
        "type": "input",
        "description": "Bridge A phase input; logic high drives current from AOUT1 to AOUT2."
      },
      {
        "number": "25",
        "name": "AEN",
        "type": "input",
        "description": "Bridge A enable input; logic high enables bridge A and logic low disables the bridge to Hi-Z."
      },
      {
        "number": "26",
        "name": "nSLEEP",
        "type": "input",
        "description": "Sleep mode input; logic high enables the device and logic low enters low-power sleep mode, with an internal pulldown resistor and an nSLEEP low pulse clearing faults."
      },
      {
        "number": "27",
        "name": "CPL",
        "type": "passive",
        "description": "Charge pump switching node; connect a X7R, 0.022-μF, VM-rated ceramic capacitor from CPH to CPL."
      },
      {
        "number": "28",
        "name": "CPH",
        "type": "passive",
        "description": "Charge pump switching node; connect a X7R, 0.022-μF, VM-rated ceramic capacitor from CPH to CPL."
      },
      {
        "number": "29",
        "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: Thermal pad (PAD) is listed in the pin table as a ground connection for the PWP package but has no n"
        ],
        "pages_sent": 9,
        "cost_usd": 0.0214,
        "at": "2026-11-05T21:35:42"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/drv8434e.pdf",
        "pages": 49,
        "sha256": "72f2741db1b1fa9f",
        "source_tier": "mfr"
      },
      "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"
    },
    "models_3d": [
      {
        "file": "drv8434epwpr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.2,
          9.7,
          1.05
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "ff242f1d3be9d09e7f929707a2c5b1ee974a4f882053b04bcdb1cd2cb21223ef",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "drv8434epwpr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.2,
          9.7,
          1.05
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "9c15618afdae94cf0f85826c3e372e590d6c9720b123665d01bdb529834e3988",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "HTSSOP-28-EP",
      "Category": "Motor Driver ICs",
      "Pins": "29"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "72f2741db1b1fa9f2401d21a04de9b66cb84556ed8e08d07dc82bcf8b089564e",
      "rows": [
        {
          "name": "Power supply voltage",
          "symbol": "VM",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Internal regulator voltage",
          "symbol": "DVDD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 5.75,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Control pin voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 5.75,
          "conditions": "APH, AEN, BPH, BEN, AIN1, AIN2, BIN1, BIN2, nFAULT, ADECAY, BDECAY, TOFF",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Open drain output current",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": 0,
          "typ": null,
          "max": 10,
          "conditions": "nFAULT",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Reference input pin voltage",
          "symbol": "VREFA, VREFB",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 5.75,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Operating ambient temperature",
          "symbol": "TA",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage range for normal (DC) operation",
          "symbol": "VVM",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4.5,
          "typ": null,
          "max": 48,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Logic level input voltage",
          "symbol": "VI",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Reference rms voltage range",
          "symbol": "VREF",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0.05,
          "typ": null,
          "max": 3.3,
          "conditions": "VREFA, VREFB",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Applied PWM signal",
          "symbol": "ƒPWM",
          "kind": "recommended_operating",
          "unit": "kHz",
          "min": 0,
          "typ": null,
          "max": 100,
          "conditions": "APH, AEN, BPH, BEN, AIN1, AIN2, BIN1, BIN2",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Motor full-scale current",
          "symbol": "IFS",
          "kind": "recommended_operating",
          "unit": "A",
          "min": 0,
          "typ": null,
          "max": 2.5,
          "conditions": "xOUTx",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Motor RMS current",
          "symbol": "Irms",
          "kind": "recommended_operating",
          "unit": "A",
          "min": 0,
          "typ": null,
          "max": 1.8,
          "conditions": "xOUTx",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Operating ambient temperature",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "VM operating supply current",
          "symbol": "IVM",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 5,
          "max": 6.5,
          "conditions": "nSLEEP = 1, No motor load",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "VM sleep mode supply current",
          "symbol": "IVMQ",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 2,
          "max": 4,
          "conditions": "nSLEEP = 0",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "nSLEEP reset pulse",
          "symbol": "tRESET",
          "kind": "timing",
          "unit": "μs",
          "min": 20,
          "typ": null,
          "max": 40,
          "conditions": "nSLEEP low to clear fault",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Wake-up time",
          "symbol": "tWAKE",
          "kind": "timing",
          "unit": "ms",
          "min": 0.8,
          "typ": null,
          "max": 1.2,
          "conditions": "nSLEEP = 1 to output transition",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Turn-on time",
          "symbol": "tON",
          "kind": "timing",
          "unit": "ms",
          "min": 0.8,
          "typ": null,
          "max": 1.2,
          "conditions": "VM > UVLO to output transition",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Internal regulator voltage",
          "symbol": "VDVDD",
          "kind": "electrical",
          "unit": "V",
          "min": 4.75,
          "typ": 5,
          "max": 5.25,
          "conditions": "No external load, 6 V < VVM < 48 V",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Internal regulator voltage",
          "symbol": "VDVDD",
          "kind": "electrical",
          "unit": "V",
          "min": 4.2,
          "typ": null,
          "max": 4.35,
          "conditions": "No external load, VVM = 4.5 V",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input logic-low voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 0.6,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input logic-high voltage",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 1.5,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input logic-low current",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "μA",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "VIN = 0 V",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input logic-high current",
          "symbol": "IIH",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "VIN = 5 V",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Propagation delay",
          "symbol": "tPD",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 800,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Quad-level input voltage",
          "symbol": "VI2",
          "kind": "electrical",
          "unit": "V",
          "min": 1,
          "typ": 1.25,
          "max": 1.4,
          "conditions": "330kΩ ± 5% to GND",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input Hi-Z voltage",
          "symbol": "VI3",
          "kind": "electrical",
          "unit": "V",
          "min": 1.8,
          "typ": 2,
          "max": 2.2,
          "conditions": "Hi-Z (>500kΩ to GND)",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input logic-high voltage",
          "symbol": "VI4",
          "kind": "electrical",
          "unit": "V",
          "min": 2.7,
          "typ": null,
          "max": 5.5,
          "conditions": "Tied to DVDD",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Output logic-low voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "IO = 5 mA",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "High-side FET on resistance",
          "symbol": "RDS(ONH)",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 165,
          "max": 200,
          "conditions": "TJ = 25 °C, IO = -1 A",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "High-side FET on resistance",
          "symbol": "RDS(ONH)",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 250,
          "max": 300,
          "conditions": "TJ = 125 °C, IO = -1 A",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "High-side FET on resistance",
          "symbol": "RDS(ONH)",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 280,
          "max": 350,
          "conditions": "TJ = 150 °C, IO = -1 A",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Low-side FET on resistance",
          "symbol": "RDS(ONL)",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 165,
          "max": 200,
          "conditions": "TJ = 25 °C, IO = 1 A",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Low-side FET on resistance",
          "symbol": "RDS(ONL)",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 250,
          "max": 300,
          "conditions": "TJ = 125 °C, IO = 1 A",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Low-side FET on resistance",
          "symbol": "RDS(ONL)",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 280,
          "max": 350,
          "conditions": "TJ = 150 °C, IO = 1 A",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Transimpedance gain",
          "symbol": "KV",
          "kind": "electrical",
          "unit": "V/A",
          "min": 1.254,
          "typ": 1.32,
          "max": 1.386,
          "conditions": "VREF = 3.3 V",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Current trip accuracy",
          "symbol": "ΔITRIP",
          "kind": "tolerance",
          "unit": "%",
          "min": -12,
          "typ": null,
          "max": 12,
          "conditions": "0.25 A < IO < 0.5 A",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Current trip accuracy",
          "symbol": "ΔITRIP",
          "kind": "tolerance",
          "unit": "%",
          "min": -6,
          "typ": null,
          "max": 6,
          "conditions": "0.5 A < IO < 1 A",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Current trip accuracy",
          "symbol": "ΔITRIP",
          "kind": "tolerance",
          "unit": "%",
          "min": -4,
          "typ": null,
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