TPS3840DL41DBVRQ1

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  "slug": "tps3840dl41dbvrq1",
  "title": "TPS3840DL41DBVRQ1",
  "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",
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  "component": {
    "mpn": "TPS3840DL41DBVRQ1",
    "manufacturer": "Texas Instruments",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "Power Management (PMIC)",
    "subcategory": "Supervisor And Reset ICs",
    "datasheet": "https://www.ti.com/cn/lit/ds/symlink/tps3840-q1.pdf",
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    "pins": [
      {
        "number": "1",
        "name": "RESET",
        "type": "output",
        "description": "Active-low, open-drain reset output. Asserted low when VDD falls below the negative voltage threshold (VIT- = 4.1 V typ.) or when MR is pulled to a logic low. Deasserts (high-Z) after the programmed delay time (tD) once VDD rises above VIT+ (VIT- + 200 mV) and MR is released. Requires an external pull-up resistor."
      },
      {
        "number": "2",
        "name": "VDD",
        "type": "power_in",
        "description": "Input supply voltage and monitored rail. Operating range 1.5 V to 10 V; monitored against VIT- = 4.1 V typical with 200 mV hysteresis."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground reference."
      },
      {
        "number": "4",
        "name": "MR",
        "type": "input",
        "description": "Manual Reset input, active low. Pull below VMR_L to force RESET asserted; float or pull above VMR_H for normal operation. Internal glitch immunity. May be left floating (NC) when not used."
      },
      {
        "number": "5",
        "name": "CT",
        "type": "passive",
        "description": "Capacitor Time Delay pin. Connect an external capacitor between CT and GND to program the reset delay time tD from ~50 µs (no cap) up to ~6.2 s with a 10 µF capacitor. Leave floating for fastest reset."
      }
    ],
    "provenance": {
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      "datasheet": {
        "url": "https://www.ti.com/cn/lit/ds/symlink/tps3840-q1.pdf",
        "pages": null,
        "sha256": "d1c08cabc9934f88",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
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        "checked": "2026-10-07",
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        "zmin_mm": 0.0,
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    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOT-23-5",
      "Category": "Power Management (PMIC)",
      "Pins": "5"
    }
  },
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  "discovery_pitch": "TPS3840DL41DBVRQ1 (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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  "updated_at": "2026-09-25T12:03:13.195Z"
}