TL7733BCDR

{
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  "type": "component",
  "slug": "tl7733bcdr",
  "title": "TL7733BCDR",
  "brief": "Texas Instruments Supervisor And Reset ICs, SOIC-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "power management (pmic)",
    "tl7733bcdr"
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  "component": {
    "mpn": "TL7733BCDR",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "Supervisor And Reset ICs",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tl7733b",
    "parts": {
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      "footprint": "tl7733bcdr.kicad_mod",
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    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "REF",
        "type": "output",
        "description": "Reference voltage output. Provides a temperature-compensated 2.53 V (typ, 2.48-2.58 V) reference at Iref = -500 µA. Requires an external 0.1 µF decoupling capacitor to GND to reduce influence of fast supply transients."
      },
      {
        "number": "2",
        "name": "RESIN",
        "type": "input",
        "description": "Active-low reset input. When RESIN is low (VIL <= 0.8 V), RESET output goes high and RESET goes low, forcing a reset regardless of SENSE. When RESIN is high (VIH >= 2 V), the RESET outputs are allowed to trigger based on the SENSE voltage. Input current -10 µA max."
      },
      {
        "number": "3",
        "name": "CT",
        "type": "passive",
        "description": "Timing capacitor connection. External capacitor CT to GND sets the reset pulse duration after SENSE crosses the positive-going threshold: td ~= 2.6e4 x CT (seconds, with CT in farads). Charged by an internal current source; a series resistor RT is recommended when SENSE monitors VCC to prevent false triggering."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference. All voltages are referenced to this pin."
      },
      {
        "number": "5",
        "name": "RESET",
        "type": "output",
        "description": "Active-low reset output (open-collector). Sinks up to IOL = 16 mA at VOL <= 0.4 V. Asserts low during power-up (VCC >= ~1 V), when SENSE < VIT- (~3.08 V typ), or when RESIN is low. Requires an external pullup resistor (10 kOhm recommended)."
      },
      {
        "number": "6",
        "name": "RESET",
        "type": "output",
        "description": "Active-high reset output (open-emitter/collector totem). Sources up to IOH = -16 mA at VOH >= VCC - 1.5 V. Asserts high during undervoltage or when RESIN is low; complementary to the active-low RESET (pin 5). Requires an external pulldown resistor (10 kOhm recommended)."
      },
      {
        "number": "7",
        "name": "SENSE",
        "type": "input",
        "description": "Sense input. Voltage input to be supervised, typically tied to VCC or a divided supply rail. Negative-going threshold VIT- = 3.08 V (typ, 3.03-3.13 V at 25°C) with ~10 mV hysteresis. Input voltage range 0 to 18 V."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage input. Recommended operating range 3.6 V to 18 V (absolute max 20 V). Supply current ICC = 1.8 mA typ, 3 mA max at VSENSE = 15 V. Decouple with 0.1 µF to GND."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tl7733b",
        "pages": null,
        "sha256": "08789e8628c5397c",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
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    },
    "viewers": {
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        "file": "tl7733bcdr.step",
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        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
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        "checked": "2026-10-23",
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    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOIC-8",
      "Category": "Power Management (PMIC)",
      "Pins": "8"
    }
  },
  "variants": [
    {
      "mpn": "TL7733BCDR",
      "kind": "packaging"
    },
    {
      "mpn": "TL7733BCDRBID",
      "kind": "packaging"
    },
    {
      "mpn": "TL7733BCDRBIDR",
      "kind": "packaging"
    },
    {
      "mpn": "TL7733BCDRBCP",
      "kind": "packaging"
    },
    {
      "mpn": "TL7733BCDRBCP.A",
      "kind": "packaging"
    }
  ],
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  "discovery_pitch": "TL7733BCDR (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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  "updated_at": "2026-09-25T10:03:06.729Z"
}