DRV8871

{
  "schema_version": 1,
  "type": "component",
  "slug": "drv8871",
  "title": "DRV8871",
  "brief": "TI brushed DC motor driver, HTSSOP-8 PowerPAD. Single H-bridge, 6.5-45 V, 3.6 A peak, PWM control with adjustable current limit. Datasheet-verified.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "driver",
    "motor-driver",
    "h-bridge",
    "brushed-dc",
    "htssop-8",
    "texas-instruments"
  ],
  "component": {
    "mpn": "DRV8871",
    "manufacturer": "Texas Instruments",
    "package": "HTSSOP-8 (PowerPAD)",
    "pin_count": 9,
    "category": "Driver",
    "subcategory": "Brushed DC motor driver",
    "datasheet": "https://www.ti.com/lit/ds/symlink/drv8871.pdf",
    "parts": {
      "symbol": "drv8871.kicad_sym",
      "footprint": "drv8871.kicad_mod",
      "model_3d": "drv8871-etched.glb",
      "model_3d_plain": "drv8871.glb",
      "model_3d_step": "drv8871-etched.step",
      "model_3d_step_plain": "drv8871.step",
      "lbr": "drv8871.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Logic ground. Connect to board ground."
      },
      {
        "number": "2",
        "name": "IN2",
        "type": "input",
        "description": "Logic input 2. Together with IN1 controls the H-bridge outputs (forward/reverse/brake/coast) and PWM speed. Has an internal ~100 kΩ pulldown to GND; input logic threshold VIL=0.5 V max, VIH=1.5 V min, 5.5 V max."
      },
      {
        "number": "3",
        "name": "IN1",
        "type": "input",
        "description": "Logic input 1. Together with IN2 controls the H-bridge outputs and PWM speed. Has an internal ~100 kΩ pulldown to GND; input logic threshold VIL=0.5 V max, VIH=1.5 V min, 5.5 V max."
      },
      {
        "number": "4",
        "name": "ILIM",
        "type": "input",
        "description": "Current-limit control. Connect a resistor from ILIM to GND to set the internal current-chopping threshold using ITRIP = VILIM / (RILIM × AV), where VILIM ≈ 64 kV constant."
      },
      {
        "number": "5",
        "name": "VM",
        "type": "power_in",
        "description": "6.5-V to 45-V motor power supply. Connect a 0.1-µF bypass capacitor to ground plus sufficient bulk capacitance rated for VM. UVLO trips at ~6.1-6.4 V falling."
      },
      {
        "number": "6",
        "name": "OUT1",
        "type": "output",
        "description": "H-bridge output 1. Connect directly to one motor terminal or other inductive load. Drives up to 3.6 A peak; RDS(on) ≈ 565 mΩ (HS+LS typ)."
      },
      {
        "number": "7",
        "name": "PGND",
        "type": "power_in",
        "description": "High-current (power) ground path for the low-side FET sources. Connect to board ground."
      },
      {
        "number": "8",
        "name": "OUT2",
        "type": "output",
        "description": "H-bridge output 2. Connect directly to the other motor terminal or inductive load. Drives up to 3.6 A peak."
      },
      {
        "number": "PAD",
        "name": "PAD",
        "type": "passive",
        "description": "Exposed thermal pad on the underside. Connect to board ground and use large copper pours and multiple thermal vias on multiple layers for heat dissipation."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/drv8871.pdf",
        "pages": 27,
        "sha256": "09de551aa0c6d090",
        "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": "drv8871.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          5.75,
          4.9,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "b3f56d43c221eba26f4dd48d37c782b9cf67bfa435ec77589732151203ec8397",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "drv8871-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          5.75,
          4.9,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "62ca25e54ce78233a101dafc201a082c7fcca79b05643ae44b0ef04076af1a71",
        "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)": "6.5-45 V",
      "Peak current": "3.6 A",
      "RDS(on)": "565 mΩ (HS + LS, typ)",
      "Control": "PWM via IN1 / IN2",
      "Current limit": "Adjustable via ILIM resistor",
      "Protection": "UVLO, OCP, OTP (auto-recover)",
      "Package": "HTSSOP-8 (PowerPAD)"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "drv8871",
    "brushed dc motor driver",
    "h-bridge ic",
    "45v motor driver"
  ],
  "discovery_pitch": "TI DRV8871 brushed DC motor driver (HTSSOP-8 PowerPAD) 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",
    "drv8871.kicad_sym",
    "drv8871.kicad_mod",
    "drv8871.glb",
    "drv8871.step",
    "drv8871.lbr",
    "docs/hero.png",
    "docs/drv8871-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "drv8871-etched.step"
  ],
  "variants": [
    {
      "mpn": "DRV8871DDAR (HTSSOP-8, tape & reel)",
      "kind": "packaging"
    }
  ]
}