MT9284-28J

{
  "schema_version": 1,
  "type": "component",
  "slug": "mt9284-28j",
  "title": "MT9284-28J",
  "brief": "Aerosemi LED Drivers, SOT-23-6. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "led-drv",
    "mt9284-28j"
  ],
  "component": {
    "mpn": "MT9284-28J",
    "manufacturer": "Aerosemi",
    "package": "SOT-23-6",
    "pin_count": 6,
    "category": "LED-drv",
    "subcategory": "LED Drivers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/7e0b42ea1d7d4278ac991d513fcf47ac.pdf",
    "parts": {
      "symbol": "mt9284-28j.kicad_sym",
      "footprint": "mt9284-28j.kicad_mod",
      "model_3d": "mt9284-28j-etched.glb",
      "model_3d_plain": "mt9284-28j.glb",
      "model_3d_step": "mt9284-28j-etched.step",
      "model_3d_step_plain": "mt9284-28j.step",
      "lbr": "mt9284-28j.lbr"
    },
    "distributor_links": {
      "lcsc": "C181780"
    },
    "pins": [
      {
        "number": "1",
        "name": "SW",
        "type": "output",
        "description": "Switch node. Drain of the integrated N-channel power MOSFET; connects to the switched side of the external boost inductor and to the anode of the external Schottky diode. Rated up to 30V absolute max; SW is high impedance during shutdown. On-resistance is 0.5Ω typical with a 1.5A peak current limit."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground and power return for the internal NMOS source. Should be tied to a strong ground plane for heat sinking and noise protection, with input/output ceramic capacitors returned close to this pin."
      },
      {
        "number": "3",
        "name": "FB",
        "type": "input",
        "description": "Current-sense feedback input. Connect a sense resistor from FB to GND to program the LED current; the loop regulates VFB to 104mV typical (94-114mV), giving ILED = VFB / RCS. Absolute maximum -0.3V to 6V."
      },
      {
        "number": "4",
        "name": "EN",
        "type": "input",
        "description": "Enable and PWM dimming input. Pull above 1.5V to enable the IC; below 0.4V shuts it down (<1µA). Accepts a 20kHz to 1MHz unfiltered PWM dimming signal to produce an average LED current proportional to the duty cycle. Absolute maximum -0.3V to 6V; leakage ±1µA max."
      },
      {
        "number": "5",
        "name": "OV",
        "type": "input",
        "description": "Output overvoltage sense input. Connect to VOUT at the top of the LED string; the MT9284 turns off the internal NMOS when VOV exceeds 28V (typical), protecting against open-LED conditions."
      },
      {
        "number": "6",
        "name": "VIN",
        "type": "power_in",
        "description": "Power supply input, 2.5V to 5.5V operating range (6V absolute max). Must be closely decoupled to GND with a 1µF or larger ceramic capacitor (4.7µF X5R/X7R recommended). Under-voltage lockout trips at 2.2V typical with 100mV hysteresis."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/7e0b42ea1d7d4278ac991d513fcf47ac.pdf",
        "pages": 10,
        "sha256": "12c2a380fdd2a887",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -1.1375,
        -0.95
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-23-6@sha256:f341c73aac9dcb55",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "mt9284-28j.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "c9fe686b4d1b56927a41fa84a9bc1efb61d8a45a123a3db43bcaa05c2891d635",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mt9284-28j-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "6f17c028b1e048fa0ff7f66d62c136631d33548bac0b58e8af6073ca5f4d621c",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Aerosemi",
      "Package": "SOT-23-6",
      "Category": "LED-drv",
      "Pins": "6"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "mt9284-28j"
  ],
  "discovery_pitch": "MT9284-28J (Aerosemi) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "mt9284-28j.kicad_sym",
    "mt9284-28j.kicad_mod",
    "mt9284-28j.glb",
    "mt9284-28j.step",
    "mt9284-28j-etched.step",
    "mt9284-28j.lbr",
    "docs/hero.png",
    "docs/mt9284-28j-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "MT9284-28J",
      "kind": "packaging"
    },
    {
      "mpn": "MT9284AS6",
      "kind": "unknown"
    },
    {
      "mpn": "MT9284BS6",
      "kind": "unknown"
    },
    {
      "mpn": "MT9284CS6",
      "kind": "unknown"
    }
  ],
  "updated_at": "2026-09-25T02:38:59.518Z"
}