DRV8231

{
  "schema_version": 1,
  "type": "component",
  "slug": "drv8231",
  "title": "DRV8231",
  "brief": "TI brushed DC motor driver, WSON-8. Single H-bridge, 4.5-33 V, 3.7 A peak, integrated current sense (IPROPI). Datasheet-verified.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "driver",
    "motor-driver",
    "h-bridge",
    "brushed-dc",
    "wson-8",
    "texas-instruments"
  ],
  "component": {
    "mpn": "DRV8231",
    "manufacturer": "Texas Instruments",
    "package": "WSON-8",
    "pin_count": 9,
    "category": "Driver",
    "subcategory": "Brushed DC motor driver",
    "datasheet": "https://www.ti.com/lit/ds/symlink/drv8231a.pdf",
    "parts": {
      "symbol": "drv8231.kicad_sym",
      "footprint": "drv8231.kicad_mod",
      "model_3d": "drv8231-etched.glb",
      "model_3d_plain": "drv8231.glb",
      "model_3d_step": "drv8231-etched.step",
      "model_3d_step_plain": "drv8231.step",
      "lbr": "drv8231.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "IPROPI",
        "type": "output",
        "description": "Analog current output proportional to load current (current mirror, 1500 µA/A scaling factor). Connect an external resistor (RIPROPI) to GND to convert to a voltage for sensing/regulation with VREF. Max 3 mA, max voltage 5.75 V."
      },
      {
        "number": "2",
        "name": "IN2",
        "type": "input",
        "description": "Logic input controlling H-bridge output OUT2. Has internal pulldown (100 kΩ to GND). Compatible with 1.8-V/3.3-V/5-V logic; VIH ≥ 1.5 V, VIL ≤ 0.5 V. Supports PWM up to 200 kHz."
      },
      {
        "number": "3",
        "name": "IN1",
        "type": "input",
        "description": "Logic input controlling H-bridge output OUT1. Has internal pulldown (100 kΩ to GND). Compatible with 1.8-V/3.3-V/5-V logic; VIH ≥ 1.5 V, VIL ≤ 0.5 V. Supports PWM up to 200 kHz."
      },
      {
        "number": "4",
        "name": "VREF",
        "type": "input",
        "description": "Analog reference voltage input (0 to 5 V, max 6 V) setting the current-regulation trip threshold together with RIPROPI. Absorbs the need for MCU intervention during start-up/stall."
      },
      {
        "number": "5",
        "name": "VM",
        "type": "power_in",
        "description": "Motor power supply, 4.5 V to 33 V (abs max 35 V). Bypass with a 0.1-µF ceramic to GND plus sufficient bulk capacitance rated for VM."
      },
      {
        "number": "6",
        "name": "OUT1",
        "type": "output",
        "description": "H-bridge output 1. Connect directly to one motor terminal or other inductive load. Peak current 3.7 A; RDS(on) high-side + low-side ≈ 600 mΩ at 24 V."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Device power ground. Connect to system ground plane; tie to thermal pad for good return and thermal dissipation."
      },
      {
        "number": "8",
        "name": "OUT2",
        "type": "output",
        "description": "H-bridge output 2. Connect directly to the other motor terminal or other inductive load. Peak current 3.7 A; body-diode forward voltage ≈ 0.8 V at 1 A."
      },
      {
        "number": "9",
        "name": "PAD",
        "type": "passive",
        "description": "Exposed thermal pad. Connect to board ground and use large ground planes on multiple layers with multiple nearby vias for effective heat dissipation."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/drv8231a.pdf",
        "pages": 44,
        "sha256": "96545c004b2fa920",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 9,
        "described": 9,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "drv8231.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2,
          1.98,
          0.82
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "7672cac8d88d8679800ef3bf90954e7996ea74e8ddb1f157f2d82bca6b2015e4",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "drv8231-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2,
          1.98,
          0.82
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "e69f348a53bc3ae12d958a2d1b7cf63f1e9f4bdd0f2da3902ca782a27a7e2de1",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Type": "Brushed DC motor driver (single H-bridge)",
      "Supply (VM)": "4.5-33 V",
      "Peak current": "3.7 A",
      "Current sense": "Integrated (IPROPI output)",
      "Control": "PWM via IN1 / IN2",
      "Protection": "UVLO, OCP, OTP",
      "Package": "WSON-8 (2x2 mm)"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "drv8231",
    "brushed dc motor driver",
    "h-bridge with current sense",
    "33v motor driver"
  ],
  "discovery_pitch": "TI DRV8231 brushed DC motor driver with integrated current sense (WSON-8) with datasheet-verified pinout, KiCad symbol/footprint/3D, and full provenance.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "drv8231.kicad_sym",
    "drv8231.kicad_mod",
    "drv8231.glb",
    "drv8231.step",
    "drv8231.lbr",
    "docs/hero.png",
    "docs/drv8231-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "drv8231-etched.step"
  ],
  "variants": [
    {
      "mpn": "DRV8231ADSGR (WSON-8, tape & reel)",
      "kind": "packaging"
    }
  ]
}