TPS386040RGPR

{
  "schema_version": 1,
  "type": "component",
  "slug": "tps386040rgpr",
  "title": "TPS386040RGPR",
  "brief": "Texas Instruments Supervisor And Reset ICs, QFN-20-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management (pmic)",
    "tps386040rgpr",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "TPS386040RGPR",
    "manufacturer": "Texas Instruments",
    "package": "QFN-20-EP(4x4)",
    "pin_count": 21,
    "category": "Power Management (PMIC)",
    "subcategory": "Supervisor And Reset ICs",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tps386040",
    "parts": {
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      "lbr": "tps386040rgpr.lbr"
    },
    "distributor_links": {
      "lcsc": "C702223",
      "digikey": "296-TPS386040RGPRTR-ND",
      "mouser": "595-TPS386040RGPR"
    },
    "distributor_check": {
      "checked_at": "2026-10-05T20:58:42Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-TPS386040RGPRTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-TPS386040RGPR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "MR",
        "type": "input",
        "description": "Manual reset input for SVS-1; logic low level on this pin asserts RESET1."
      },
      {
        "number": "2",
        "name": "CT4",
        "type": "passive",
        "description": "Reset delay programming pin for SVS-4; connect to VDD through 40-kΩ to 200-kΩ resistor for fixed delay or capacitor > 220 pF to GND for programmable delay time."
      },
      {
        "number": "3",
        "name": "CT3",
        "type": "passive",
        "description": "Reset delay programming pin for SVS-3; connect to VDD through 40-kΩ to 200-kΩ resistor for fixed delay or capacitor > 220 pF to GND for programmable delay time."
      },
      {
        "number": "4",
        "name": "CT2",
        "type": "passive",
        "description": "Reset delay programming pin for SVS-2; connect to VDD through 40-kΩ to 200-kΩ resistor for fixed delay or capacitor > 220 pF to GND for programmable delay time."
      },
      {
        "number": "5",
        "name": "CT1",
        "type": "passive",
        "description": "Reset delay programming pin for SVS-1; connect to VDD through 40-kΩ to 200-kΩ resistor for fixed delay or capacitor > 220 pF to GND for programmable delay time."
      },
      {
        "number": "6",
        "name": "SENSE4H",
        "type": "input",
        "description": "Rising monitor voltage input to SVS-4 that asserts RESET4 when voltage exceeds threshold voltage VITP; can monitor negative voltage via VREF pin or connect to GND if not used."
      },
      {
        "number": "7",
        "name": "SENSE4L",
        "type": "input",
        "description": "Falling monitor voltage input to SVS-4 that asserts RESET4 when voltage drops below threshold voltage VITN."
      },
      {
        "number": "8",
        "name": "SENSE3",
        "type": "input",
        "description": "Monitor voltage input to SVS-3 that asserts RESET3 when voltage drops below threshold voltage VITN."
      },
      {
        "number": "9",
        "name": "SENSE2",
        "type": "input",
        "description": "Monitor voltage input to SVS-2 that asserts RESET2 when voltage drops below threshold voltage VITN."
      },
      {
        "number": "10",
        "name": "SENSE1",
        "type": "input",
        "description": "Monitor voltage input to SVS-1 that asserts RESET1 when voltage drops below threshold voltage VITN."
      },
      {
        "number": "11",
        "name": "NC",
        "type": "unconnected",
        "description": "Not internal connection; TI recommends connecting this pin to GND pin (pin 12)."
      },
      {
        "number": "12",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "13",
        "name": "VREF",
        "type": "power_in",
        "description": "Reference voltage output intended to source current into external resistor network for monitoring negative power rail via SENSE4H; do not connect resistors to voltage higher than 1.2 V or connect capacitor only."
      },
      {
        "number": "14",
        "name": "VDD",
        "type": "power_in",
        "description": "Supply voltage 1.8 V to 6.5 V; recommend 0.1-μF ceramic capacitor connected close to this pin."
      },
      {
        "number": "15",
        "name": "RESET1",
        "type": "output",
        "description": "Active low reset output of SVS-1; push-pull logic buffer that remains logic low when asserted and goes logic high after delay time programmed by CT1 when released."
      },
      {
        "number": "16",
        "name": "RESET2",
        "type": "output",
        "description": "Active low reset output of SVS-2; push-pull logic buffer that remains logic low when asserted and goes logic high after delay time programmed by CT2 when released."
      },
      {
        "number": "17",
        "name": "RESET3",
        "type": "output",
        "description": "Active low reset output of SVS-3; push-pull logic buffer that remains logic low when asserted and goes logic high after delay time programmed by CT3 when released."
      },
      {
        "number": "18",
        "name": "RESET4",
        "type": "output",
        "description": "Active low reset output of SVS-4; push-pull logic buffer that remains logic low when asserted and goes logic high after delay time programmed by CT4 when released."
      },
      {
        "number": "19",
        "name": "WDO",
        "type": "output",
        "description": "Watchdog timer output; push-pull that goes logic low when WDT times out and stays logic high if no WDT time-out occurs."
      },
      {
        "number": "20",
        "name": "WDI",
        "type": "input",
        "description": "Watchdog timer trigger input requiring positive or negative logic edge every 610 ms (typical) to prevent WDT time-out; timer starts from RESET1 release."
      },
      {
        "number": "21",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "exposed pad 21 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint"
        ],
        "pages_sent": 11,
        "cost_usd": 0.131,
        "at": "2026-10-05T20:58:28"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tps386040",
        "pages": 41,
        "sha256": "5b9d2375847111b6",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 21,
        "described": 21,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "QFN-20-EP(4x4)",
      "Category": "Power Management (PMIC)",
      "Pins": "21"
    }
  },
  "variants": [],
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  "discovery_pitch": "TPS386040RGPR (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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}