UMC4NTR

{
  "schema_version": 1,
  "type": "component",
  "slug": "umc4ntr",
  "title": "UMC4NTR",
  "brief": "ROHM Battery Management, SOT-353. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "umc4ntr"
  ],
  "component": {
    "mpn": "UMC4NTR",
    "manufacturer": "ROHM",
    "package": "SOT-353",
    "pin_count": 5,
    "category": "PMIC",
    "subcategory": "Battery Management",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/2218935863704df690824a23c77f6f32.pdf",
    "parts": {
      "symbol": "umc4ntr.kicad_sym",
      "footprint": "umc4ntr.kicad_mod",
      "model_3d": "umc4ntr-etched.glb",
      "model_3d_plain": "umc4ntr.glb",
      "model_3d_step": "umc4ntr-etched.step",
      "model_3d_step_plain": "umc4ntr.step",
      "lbr": "umc4ntr.lbr"
    },
    "distributor_links": {
      "lcsc": "C122978"
    },
    "pins": [
      {
        "number": "1",
        "name": "DTr2_B",
        "type": "input",
        "description": "Base input of DTr2 (PNP, DTA114Y-equivalent) through internal 10kΩ series resistor R1. 47kΩ R2 sits between base and emitter. Absolute-max VIN = −40V / +6V."
      },
      {
        "number": "2",
        "name": "DTr2_E",
        "type": "passive",
        "description": "Emitter of DTr2 (PNP). Typically connected to VCC (positive supply) in a high-side switch topology. Absolute-max VCC = −50V."
      },
      {
        "number": "3",
        "name": "DTr1_B",
        "type": "input",
        "description": "Base input of DTr1 (NPN, DTC114E-equivalent) through internal 47kΩ series resistor R1. 47kΩ R2 sits between base and emitter (R2/R1 ≈ 1). Absolute-max VIN = +40V / −10V."
      },
      {
        "number": "4",
        "name": "DTr1_E",
        "type": "passive",
        "description": "Emitter of DTr1 (NPN). Typically connected to GND in a low-side switch topology."
      },
      {
        "number": "5",
        "name": "DTr1_C/DTr2_C",
        "type": "output",
        "description": "Collector output. In dual DTR packages such as UMC4N the two collectors are frequently brought out on a shared or adjacent pin; check ROHM's specific UMC4N pinout for whether pin 5 is DTr1 collector only, DTr2 collector only, or common. Absolute-max IO/IC ≈ 100mA."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/2218935863704df690824a23c77f6f32.pdf",
        "pages": 3,
        "sha256": "1297e7ec9f8c13b4",
        "source_tier": "mfr"
      },
      "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": [
        -0.8375,
        -0.65
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-353_SC-70-5@sha256:869e17094994ff78",
      "mark": "drawn"
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "ROHM",
      "Package": "SOT-353",
      "Category": "PMIC",
      "Pins": "5"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "umc4ntr"
  ],
  "discovery_pitch": "UMC4NTR (ROHM) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "umc4ntr.kicad_sym",
    "umc4ntr.kicad_mod",
    "umc4ntr.glb",
    "umc4ntr.step",
    "umc4ntr-etched.step",
    "umc4ntr.lbr",
    "docs/hero.png",
    "docs/umc4ntr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "UMC4NTR",
      "kind": "packaging"
    },
    {
      "mpn": "UMC4NTREMC4T2R",
      "kind": "packaging"
    },
    {
      "mpn": "UMC4NTRFMC4AT148",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T13:48:35.851Z"
}