DRV8811PWPR

{
  "schema_version": 1,
  "type": "component",
  "slug": "drv8811pwpr",
  "title": "DRV8811PWPR",
  "brief": "Texas Instruments Stepper Motor Driver, HTSSOP-28. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "motor driver ics",
    "drv8811pwpr"
  ],
  "component": {
    "mpn": "DRV8811PWPR",
    "manufacturer": "Texas Instruments",
    "package": "HTSSOP-28",
    "pin_count": 29,
    "category": "Motor Driver ICs",
    "subcategory": "Stepper Motor Driver",
    "datasheet": "https://www.ti.com/cn/lit/ds/symlink/drv8811.pdf",
    "parts": {
      "symbol": "drv8811pwpr.kicad_sym",
      "footprint": "drv8811pwpr.kicad_mod",
      "model_3d": "drv8811pwpr-etched.glb",
      "model_3d_plain": "drv8811pwpr.glb",
      "model_3d_step": "drv8811pwpr-etched.step",
      "model_3d_step_plain": "drv8811pwpr.step",
      "lbr": "drv8811pwpr.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "ISENA",
        "type": "input",
        "description": "Bridge A ground / current sense. Connect to current sense resistor for bridge A. Absolute limit ±0.875 V (transients ±1 V <25 ns allowed)."
      },
      {
        "number": "2",
        "name": "HOMEn",
        "type": "output",
        "description": "Home position indicator. Logic low when the indexer is in the home state of the step table, logic high otherwise."
      },
      {
        "number": "3",
        "name": "DIR",
        "type": "input",
        "description": "Direction input. Logic level sets the direction of stepping. Has weak internal pulldown (~1 MΩ)."
      },
      {
        "number": "4",
        "name": "AOUT1",
        "type": "output",
        "description": "Bridge A output 1. Connect to bipolar stepper motor winding A. Rated up to 1.9 A. Positive current is AOUT1 → AOUT2."
      },
      {
        "number": "5",
        "name": "DECAY",
        "type": "input",
        "description": "Decay mode select. Voltage applied sets decay mode (slow/mixed/fast). Bypass to GND with a 0.1 µF ceramic capacitor."
      },
      {
        "number": "6",
        "name": "RCA",
        "type": "input",
        "description": "Bridge A blanking and off-time adjust. Connect a parallel resistor (12-100 kΩ) and capacitor (470-1500 pF) to GND."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground."
      },
      {
        "number": "8",
        "name": "VREF",
        "type": "input",
        "description": "Current set reference input. Reference voltage for winding current regulation (0 to VCC). VREF nom 1 V."
      },
      {
        "number": "9",
        "name": "RCB",
        "type": "input",
        "description": "Bridge B blanking and off-time adjust. Connect a parallel resistor (12-100 kΩ) and capacitor (470-1500 pF) to GND."
      },
      {
        "number": "10",
        "name": "VCC",
        "type": "power_in",
        "description": "Logic supply voltage. Connect to a 3 V to 5.5 V logic supply. Bypass to GND with a 0.1 µF ceramic capacitor."
      },
      {
        "number": "11",
        "name": "BOUT1",
        "type": "output",
        "description": "Bridge B output 1. Connect to bipolar stepper motor winding B. Rated up to 1.9 A. Positive current is BOUT1 → BOUT2."
      },
      {
        "number": "12",
        "name": "USM1",
        "type": "input",
        "description": "Microstep mode 1. USM0/USM1 select full step, half step, quarter step, or 1/8 microstep. Weak internal pulldown."
      },
      {
        "number": "13",
        "name": "USM0",
        "type": "input",
        "description": "Microstep mode 0. USM0/USM1 select full step, half step, quarter step, or 1/8 microstep. Weak internal pulldown."
      },
      {
        "number": "14",
        "name": "ISENB",
        "type": "input",
        "description": "Bridge B ground / current sense. Connect to current sense resistor for bridge B. Absolute limit ±0.875 V (transients ±1 V <25 ns allowed)."
      },
      {
        "number": "15",
        "name": "VMB",
        "type": "power_in",
        "description": "Bridge B power supply. Connect to motor supply (8 V to 38 V). VMA and VMB must be tied to the same supply."
      },
      {
        "number": "16",
        "name": "SRn",
        "type": "input",
        "description": "Synchronous rectification enable input, active-low. When low, synchronous rectification is enabled. Weak internal pulldown."
      },
      {
        "number": "17",
        "name": "RESETn",
        "type": "input",
        "description": "Reset input, active-low. Initializes the indexer logic and disables the H-bridge outputs. Weak internal pullup (~1 MΩ)."
      },
      {
        "number": "18",
        "name": "BOUT2",
        "type": "output",
        "description": "Bridge B output 2. Positive current is BOUT1 → BOUT2. Rated up to 1.9 A."
      },
      {
        "number": "19",
        "name": "STEP",
        "type": "input",
        "description": "Step input. Rising edge causes the indexer to advance one microstep. Weak internal pulldown."
      },
      {
        "number": "20",
        "name": "VGD",
        "type": "power_out",
        "description": "Low-side gate drive voltage. Bypass to GND with a 0.22 µF ceramic capacitor. Absolute max 8 V."
      },
      {
        "number": "21",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground."
      },
      {
        "number": "22",
        "name": "VCP",
        "type": "power_out",
        "description": "High-side gate drive voltage (charge pump output). Connect a 0.22 µF ceramic capacitor to VM."
      },
      {
        "number": "23",
        "name": "CP1",
        "type": "passive",
        "description": "Charge pump flying capacitor. Connect a 0.22 µF capacitor between CP1 and CP2."
      },
      {
        "number": "24",
        "name": "CP2",
        "type": "passive",
        "description": "Charge pump flying capacitor. Connect a 0.22 µF capacitor between CP1 and CP2."
      },
      {
        "number": "25",
        "name": "AOUT2",
        "type": "output",
        "description": "Bridge A output 2. Positive current is AOUT1 → AOUT2. Rated up to 1.9 A."
      },
      {
        "number": "26",
        "name": "ENABLEn",
        "type": "input",
        "description": "Enable input, active-low. Logic high disables device outputs, logic low enables outputs. Weak internal pullup (~1 MΩ)."
      },
      {
        "number": "27",
        "name": "SLEEPn",
        "type": "input",
        "description": "Sleep mode input, active-low. Logic high enables the device, logic low enters low-power sleep mode. Weak internal pulldown."
      },
      {
        "number": "28",
        "name": "VMA",
        "type": "power_in",
        "description": "Bridge A power supply. Connect to motor supply (8 V to 38 V). VMA and VMB must be tied to the same supply."
      },
      {
        "number": "29",
        "name": "PAD",
        "type": "power_in",
        "description": "Exposed thermal pad. Connect to system ground with a large copper plane for improved thermal dissipation."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/ds/symlink/drv8811.pdf",
        "pages": 33,
        "sha256": "0b8de04cb904145e",
        "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"
    },
    "models_3d": [
      {
        "file": "drv8811pwpr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          9.7,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "b9e231ffd0dc17d13a174b875c5ed26e9f28ef12dd003623bb416f5f955fe0a6",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "drv8811pwpr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          9.7,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "af1ac38d4856ffbac9272a04f715e0bba1e2b0811be812bf5611fb96aca5ca3c",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "HTSSOP-28",
      "Category": "Motor Driver ICs",
      "Pins": "29"
    }
  },
  "variants": [
    {
      "mpn": "DRV8811PWPR",
      "kind": "packaging"
    }
  ],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "drv8811pwpr"
  ],
  "discovery_pitch": "DRV8811PWPR (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "drv8811pwpr.kicad_sym",
    "drv8811pwpr.kicad_mod",
    "drv8811pwpr.glb",
    "drv8811pwpr.step",
    "drv8811pwpr.lbr",
    "docs/hero.png",
    "docs/drv8811pwpr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
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  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T20:00:53.758Z"
}