PT4115B89E

{
  "schema_version": 1,
  "type": "component",
  "slug": "pt4115b89e",
  "title": "PT4115B89E",
  "brief": "PowTech CR PowTech Shanghai LED Drivers, SOT-89-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "led-drv",
    "pt4115b89e"
  ],
  "component": {
    "mpn": "PT4115B89E",
    "manufacturer": "PowTech CR PowTech Shanghai",
    "package": "SOT-89-5",
    "pin_count": 5,
    "category": "LED-drv",
    "subcategory": "LED Drivers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/710aeebb569349bc814ba1f6ba8cbef1.pdf",
    "parts": {
      "symbol": "pt4115b89e.kicad_sym",
      "footprint": "pt4115b89e.kicad_mod",
      "model_3d": "pt4115b89e-etched.glb",
      "model_3d_plain": "pt4115b89e.glb",
      "model_3d_step": "pt4115b89e-etched.step",
      "model_3d_step_plain": "pt4115b89e.step",
      "lbr": "pt4115b89e.lbr"
    },
    "distributor_links": {
      "lcsc": "C84512"
    },
    "pins": [
      {
        "number": "1",
        "name": "SW",
        "type": "output",
        "description": "Switch output. Drain of the internal high-side N-channel MOSFET switch (Rds(on) ~0.4-0.6 Ω, Isw <=1.2 A continuous, absolute max 1.5 A, -0.3 to 45 V). Connects to the inductor (and the freewheel diode cathode) in the buck power stage."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Signal and power ground. Connect directly to the ground plane; also serves as the return for the internal MOSFET switch current."
      },
      {
        "number": "3",
        "name": "DIM",
        "type": "input",
        "description": "Logic-level dimming / enable input. Drive below 0.3 V to disable the current regulator (shutdown, Iq ~95 µA); drive >=2.5 V to enable full LED current. Accepts a DC voltage from 0.5-2.5 V for linear brightness control, or a PWM signal from 100 Hz up to 20 kHz for duty-cycle dimming (5000:1 range). Internally pulled to a 5 V rail via a ~200 kΩ resistor, so the pin may be left floating for always-on operation. Absolute max -0.3 to 6 V."
      },
      {
        "number": "4",
        "name": "CSN",
        "type": "input",
        "description": "High-side current-sense input. Connects to the low side of the external sense resistor Rs (which sits between VIN and CSN). The internal comparator regulates the average voltage (VIN - VCSN) to ~100 mV (98 mV A-type / 102 mV B-type), giving ILED_avg ≈ 0.1 V / Rs. Input current ~8 µA; absolute max +0.3 V to -6.0 V with respect to VIN."
      },
      {
        "number": "5",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply pin. Operating range 6 V to 30 V (absolute max -0.3 to 45 V); UVLO ~5.1 V with ~500 mV hysteresis. Must be locally bypassed (typ. 100 µF ceramic/electrolytic to GND close to the pin). Also serves as the high-side reference for the current-sense comparator."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/710aeebb569349bc814ba1f6ba8cbef1.pdf",
        "pages": 18,
        "sha256": "24a8e87d81cf2d2d",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -1.85,
        -1.5
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-89-5@sha256:9abcedfc1a89eea0",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "pt4115b89e.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.2,
          4.5,
          1.5
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "5bf9133f79d12f58c4da043d3892ba5cec700de6f3255a5358e7ec3200be4733",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "pt4115b89e-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.2,
          4.5,
          1.5
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "9f245060807331e9c62a605ba3325605d1ae331c23a898d28f436467f9a64d31",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "PowTech CR PowTech Shanghai",
      "Package": "SOT-89-5",
      "Category": "LED-drv",
      "Pins": "5"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "pt4115b89e"
  ],
  "discovery_pitch": "PT4115B89E (PowTech CR PowTech Shanghai) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "pt4115b89e.kicad_sym",
    "pt4115b89e.kicad_mod",
    "pt4115b89e.glb",
    "pt4115b89e.step",
    "pt4115b89e-etched.step",
    "pt4115b89e.lbr",
    "docs/hero.png",
    "docs/pt4115b89e-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "variants": [
    {
      "mpn": "PT4115B89E",
      "kind": "packaging"
    },
    {
      "mpn": "PT4115B89E-B",
      "kind": "packaging"
    },
    {
      "mpn": "PT4115BSOH",
      "kind": "unknown"
    },
    {
      "mpn": "PT4115BSOH-B",
      "kind": "unknown"
    }
  ],
  "updated_at": "2026-09-25T04:34:54.290Z"
}