TPS3820-50DBVR

{
  "schema_version": 1,
  "type": "component",
  "slug": "tps3820-50dbvr",
  "title": "TPS3820-50DBVR",
  "brief": "Texas Instruments Supervisor and Reset ICs, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "tps3820-50dbvr"
  ],
  "component": {
    "mpn": "TPS3820-50DBVR",
    "manufacturer": "Texas Instruments",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "PMIC",
    "subcategory": "Supervisor and Reset ICs",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2303021030_Texas-Instruments-TPS3820-50DBVR_C702185.pdf",
    "parts": {
      "symbol": "tps3820-50dbvr.kicad_sym",
      "footprint": "tps3820-50dbvr.kicad_mod",
      "model_3d": "tps3820-50dbvr-etched.glb",
      "model_3d_plain": "tps3820-50dbvr.glb",
      "model_3d_step": "tps3820-50dbvr-etched.step",
      "model_3d_step_plain": "tps3820-50dbvr.step",
      "lbr": "tps3820-50dbvr.lbr"
    },
    "distributor_links": {
      "digikey": "296-41741-2-ND",
      "lcsc": "C702185"
    },
    "pins": [
      {
        "number": "1",
        "name": "RESET",
        "type": "output",
        "description": "Active-low reset output, push-pull. Driven low while VDD is below the 4.55 V threshold (VIT-) and held low for the reset delay period (typ 200 ms) after VDD recovers, or during a manual/watchdog reset. VOL = 0.4 V max at IOL = 3 mA; VOH = VDD - 1.5 V at IOH = -120 uA."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "3",
        "name": "MR",
        "type": "input",
        "description": "Manual reset input, active low. Pulling MR low forces RESET low; RESET stays low as long as MR is low and for the reset delay after MR returns high. Internal ~52 kOhm pull-up to VDD; leave open or tie to VDD if unused. VIL <= 0.3 x VDD, VIH >= 0.7 x VDD."
      },
      {
        "number": "4",
        "name": "WDI",
        "type": "input",
        "description": "Watchdog input. If WDI stays high or low longer than the watchdog timeout (typ 200 ms for TPS3820) a reset is triggered; a rising or falling edge on WDI clears the timer. Tie to high impedance if unused to avoid spurious resets. VIL <= 0.3 x VDD, VIH >= 0.7 x VDD."
      },
      {
        "number": "5",
        "name": "VDD",
        "type": "power_in",
        "description": "Supply input and monitored voltage. Operating range 1.1 V to 5.5 V (absolute max 6 V); monitored against the fixed 4.55 V negative-going threshold for the -50 variant. Bypass with a 0.1 uF ceramic near the pin."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2303021030_Texas-Instruments-TPS3820-50DBVR_C702185.pdf",
        "pages": 35,
        "sha256": "f0ddd0a85e54c699",
        "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": [
        -1.1375,
        -0.95
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-23-5@sha256:455a3f7c3e5eb5b8",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "tps3820-50dbvr.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": "720a6eab0024069bbee68e7cb4c3ff1149468a34611225cdc852662c5d0ec2b7",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tps3820-50dbvr-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": "31311dfabad58d8be9a20967689d739dc628408784bd0ef05fedeafc88273d5e",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOT-23-5",
      "Category": "PMIC",
      "Pins": "5"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "tps3820-50dbvr"
  ],
  "discovery_pitch": "TPS3820-50DBVR (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tps3820-50dbvr.kicad_sym",
    "tps3820-50dbvr.kicad_mod",
    "tps3820-50dbvr.glb",
    "tps3820-50dbvr.step",
    "tps3820-50dbvr.lbr",
    "docs/hero.png",
    "docs/tps3820-50dbvr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tps3820-50dbvr-etched.step"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "TPS3820-50DBVR",
      "kind": "packaging"
    },
    {
      "mpn": "TPS3820-50DBVRDBVT",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T12:01:57.725Z"
}