L293D

{
  "schema_version": 1,
  "type": "component",
  "slug": "l293d",
  "title": "L293D",
  "brief": "TI quadruple half-H motor driver with internal clamp diodes, DIP-16. 600 mA/ch, up to 36 V. Datasheet-verified.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "motor-driver",
    "h-bridge",
    "half-h",
    "dip-16",
    "texas-instruments"
  ],
  "component": {
    "mpn": "L293D",
    "manufacturer": "Texas Instruments",
    "package": "PDIP-16",
    "pin_count": 16,
    "category": "Motor Driver",
    "subcategory": "Quad half-H driver (dual H-bridge)",
    "datasheet": "https://www.ti.com/lit/ds/symlink/l293d.pdf",
    "parts": {
      "symbol": "l293d.kicad_sym",
      "footprint": "l293d.kicad_mod",
      "model_3d": "l293d-etched.glb",
      "model_3d_plain": "l293d.glb",
      "lbr": "l293d.lbr",
      "model_3d_step": "l293d-etched.step",
      "model_3d_step_plain": "l293d.step"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "1,2EN",
        "type": "input",
        "description": "Active-high enable for driver channels 1 and 2. When high, drivers 1 and 2 are enabled and outputs track their inputs; when low, outputs 1Y and 2Y are in high-impedance (off). TTL compatible, tolerant up to 7 V."
      },
      {
        "number": "2",
        "name": "1A",
        "type": "input",
        "description": "Noninverting driver input for channel 1. TTL-compatible logic input; VIH ≥ 2.3 V, VIL ≤ 1.5 V. Controls state of output 1Y when 1,2EN is high."
      },
      {
        "number": "3",
        "name": "1Y",
        "type": "output",
        "description": "Half-H driver output for channel 1. Totem-pole output with Darlington sink and pseudo-Darlington source, supplies up to 600 mA continuous / 1.2 A peak at VCC2 (4.5 V to 36 V). Internal output clamp diodes provide inductive-transient suppression on L293D."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground and heat-sink pin. Connect to PCB ground plane with multiple solid vias; pins 4, 5, 12, and 13 are all tied to the internal heat-sink lead frame and share thermal duty."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground and heat-sink pin. Connect to PCB ground plane with multiple solid vias; pins 4, 5, 12, and 13 are all tied to the internal heat-sink lead frame and share thermal duty."
      },
      {
        "number": "6",
        "name": "2Y",
        "type": "output",
        "description": "Half-H driver output for channel 2. Totem-pole output with Darlington sink and pseudo-Darlington source, supplies up to 600 mA continuous / 1.2 A peak at VCC2 (4.5 V to 36 V). Internal output clamp diodes provide inductive-transient suppression on L293D."
      },
      {
        "number": "7",
        "name": "2A",
        "type": "input",
        "description": "Noninverting driver input for channel 2. TTL-compatible logic input; VIH ≥ 2.3 V, VIL ≤ 1.5 V. Controls state of output 2Y when 1,2EN is high."
      },
      {
        "number": "8",
        "name": "VCC2",
        "type": "power_in",
        "description": "Output-stage (driver) supply, 4.5 V to 36 V. Sets the swing of all four Y outputs and supplies motor/load current up to 600 mA continuous per channel (1.2 A peak) on L293D. Bypass locally to GND with bulk + ceramic capacitors."
      },
      {
        "number": "9",
        "name": "3,4EN",
        "type": "input",
        "description": "Active-high enable for driver channels 3 and 4. When high, drivers 3 and 4 are enabled and outputs track their inputs; when low, outputs 3Y and 4Y are in high-impedance (off). TTL compatible, tolerant up to 7 V."
      },
      {
        "number": "10",
        "name": "3A",
        "type": "input",
        "description": "Noninverting driver input for channel 3. TTL-compatible logic input; VIH ≥ 2.3 V, VIL ≤ 1.5 V. Controls state of output 3Y when 3,4EN is high."
      },
      {
        "number": "11",
        "name": "3Y",
        "type": "output",
        "description": "Half-H driver output for channel 3. Totem-pole output with Darlington sink and pseudo-Darlington source, supplies up to 600 mA continuous / 1.2 A peak at VCC2 (4.5 V to 36 V). Internal output clamp diodes provide inductive-transient suppression on L293D."
      },
      {
        "number": "12",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground and heat-sink pin. Connect to PCB ground plane with multiple solid vias; pins 4, 5, 12, and 13 are all tied to the internal heat-sink lead frame and share thermal duty."
      },
      {
        "number": "13",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground and heat-sink pin. Connect to PCB ground plane with multiple solid vias; pins 4, 5, 12, and 13 are all tied to the internal heat-sink lead frame and share thermal duty."
      },
      {
        "number": "14",
        "name": "4Y",
        "type": "output",
        "description": "Half-H driver output for channel 4. Totem-pole output with Darlington sink and pseudo-Darlington source, supplies up to 600 mA continuous / 1.2 A peak at VCC2 (4.5 V to 36 V). Internal output clamp diodes provide inductive-transient suppression on L293D."
      },
      {
        "number": "15",
        "name": "4A",
        "type": "input",
        "description": "Noninverting driver input for channel 4. TTL-compatible logic input; VIH ≥ 2.3 V, VIL ≤ 1.5 V. Controls state of output 4Y when 3,4EN is high."
      },
      {
        "number": "16",
        "name": "VCC1",
        "type": "power_in",
        "description": "Logic supply for internal input translation, 4.5 V to 7 V (nominal 5 V). Kept separate from VCC2 to minimize device power dissipation. Bypass locally to GND with a ceramic capacitor."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/l293d.pdf",
        "pages": 19,
        "sha256": "ee1e8923495a2c0d",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "l293d.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          19.177,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "17a30b1f0ab3fd5384a1231e3c63c394888d5b952c542a8c189e023ed3467464",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "l293d-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": [
          7.874,
          19.177,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "502b7fd7bb36108eb5a9eb0a20160a3c197746f4663d8001ee4e620745515982",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Type": "Quadruple half-H driver",
      "Configuration": "4 half-bridges (2 full H-bridges)",
      "Output current": "600 mA/ch (1.2 A peak)",
      "Motor supply (VCC2)": "up to 36 V",
      "Logic supply (VCC1)": "4.5-7 V",
      "Clamp diodes": "internal (the D)",
      "Enables": "1,2EN and 3,4EN",
      "Package": "PDIP-16 (GND = heat sink)"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "l293d",
    "h-bridge driver",
    "dc motor driver",
    "half h bridge",
    "l293"
  ],
  "discovery_pitch": "L293D quadruple half-H motor driver with internal clamp diodes (DIP-16) with datasheet-verified pinout, KiCad symbol/footprint/3D, and full provenance.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "l293d.kicad_sym",
    "l293d.kicad_mod",
    "l293d.glb",
    "l293d.lbr",
    "docs/hero.png",
    "docs/l293d-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "l293d-etched.step"
  ],
  "variants": [
    {
      "mpn": "L293DNE (PDIP-16)",
      "kind": "packaging"
    },
    {
      "mpn": "L293DNEE4 (PDIP-16)",
      "kind": "packaging"
    }
  ]
}