BQ24072RGTR

{
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  "type": "component",
  "slug": "bq24072rgtr",
  "title": "BQ24072RGTR",
  "brief": "Texas Instruments Battery Management, QFN-16-EP(3x3). Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "pmic",
    "bq24072rgtr"
  ],
  "component": {
    "mpn": "BQ24072RGTR",
    "manufacturer": "Texas Instruments",
    "package": "QFN-16-EP(3x3)",
    "pin_count": 17,
    "category": "PMIC",
    "subcategory": "Battery Management",
    "datasheet": "https://www.ti.com/lit/ds/symlink/bq24072.pdf",
    "parts": {
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    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "TS",
        "type": "input",
        "description": "External NTC thermistor input. Connect to a 10-kΩ NTC thermistor in the battery pack; monitors pack temperature and pauses charging when out of range. Tie to VSS through a 10-kΩ fixed resistor if unused."
      },
      {
        "number": "2",
        "name": "BAT",
        "type": "power_out",
        "description": "Charger power-stage output and battery voltage-sense input. Connect to the positive terminal of the 1-cell Li-Ion battery and bypass to VSS with a 4.7-µF to 47-µF ceramic capacitor. Pins 2 and 3 must be tied together."
      },
      {
        "number": "3",
        "name": "BAT",
        "type": "power_out",
        "description": "Charger power-stage output and battery voltage-sense input (see pin 2). Pins 2 and 3 must be tied together."
      },
      {
        "number": "4",
        "name": "CE",
        "type": "input",
        "description": "Charge Enable active-low input. Drive low to enable charging; drive high to disable charging (OUT and battery supplement mode remain available). Internally pulled down (~285 kΩ); must not be left floating."
      },
      {
        "number": "5",
        "name": "EN2",
        "type": "input",
        "description": "Input Current Limit configuration input (MSB). Together with EN1 selects USB100 / USB500 / ILIM-resistor / Standby modes (see EN1/EN2 table). Internally pulled down (~285 kΩ); do not leave floating."
      },
      {
        "number": "6",
        "name": "EN1",
        "type": "input",
        "description": "Input Current Limit configuration input (LSB). Together with EN2 selects USB100 / USB500 / ILIM-resistor / Standby modes. Internally pulled down (~285 kΩ); do not leave floating."
      },
      {
        "number": "7",
        "name": "PGOOD",
        "type": "output",
        "description": "Open-drain Power-Good status output. Pulls to VSS when a valid input source is detected on IN; high-impedance otherwise. Pull up to a logic rail through 1 kΩ-100 kΩ, or drive an indicator LED."
      },
      {
        "number": "8",
        "name": "VSS",
        "type": "power_in",
        "description": "Device ground. Must be connected to the ground rail of the circuit and to the exposed thermal pad."
      },
      {
        "number": "9",
        "name": "CHG",
        "type": "output",
        "description": "Open-drain charge-status indicator output (active-low, CHG-bar). Pulls to VSS while the battery is charging; high-impedance when charging is complete or disabled. Pull up to logic rail through 1 kΩ-100 kΩ or use with an LED."
      },
      {
        "number": "10",
        "name": "OUT",
        "type": "power_out",
        "description": "System supply output from the power-path stage. Regulated when the input is within the valid operating range; otherwise tracks V_BAT. Bypass to VSS with 4.7-µF to 47-µF ceramic capacitor. Pins 10 and 11 must be tied together."
      },
      {
        "number": "11",
        "name": "OUT",
        "type": "power_out",
        "description": "System supply output (see pin 10). Pins 10 and 11 must be tied together."
      },
      {
        "number": "12",
        "name": "ILIM",
        "type": "input",
        "description": "Adjustable current-limit programming input. Connect a 1100-Ω to 8-kΩ resistor from ILIM to VSS to set the maximum input current when EN2=1, EN1=0. Leave floating to disable all charging."
      },
      {
        "number": "13",
        "name": "IN",
        "type": "power_in",
        "description": "Input power connection from an AC adapter or USB port. Operating range 4.35 V to 6.6 V (BQ24072); withstands up to 26 V without damage (operation suspended above OVP). Bypass to VSS with a 1-µF to 10-µF ceramic capacitor."
      },
      {
        "number": "14",
        "name": "TMR",
        "type": "input",
        "description": "Safety-timer programming input. Connect an 18-kΩ to 72-kΩ resistor from TMR to VSS to set the pre-charge and fast-charge timers; tie to VSS to disable all safety timers; leave open for default timer values."
      },
      {
        "number": "15",
        "name": "TD",
        "type": "input",
        "description": "Termination Disable input. Drive high to disable charge termination; tie to VSS to enable termination. Sampled only at startup and cannot be changed during operation. Internally pulled down (~285 kΩ); do not leave floating."
      },
      {
        "number": "16",
        "name": "ISET",
        "type": "bidirectional",
        "description": "Fast-charge current programming input / monitor. Connect a 590-Ω to 8.9-kΩ resistor from ISET to VSS to set fast-charge current. Voltage at ISET mirrors the actual charge current and can be used to monitor it. Leaving open disables charging."
      },
      {
        "number": "17",
        "name": "PAD",
        "type": "power_in",
        "description": "Exposed thermal pad on package underside. Internally connected to VSS; must be soldered to the PCB ground plane for thermal dissipation and tied to the same potential as pin 8. Do not use as the primary ground input - VSS pin must also be grounded."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/bq24072.pdf",
        "pages": 53,
        "sha256": "05585ca0112a74b0",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 17,
        "described": 17,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
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        "units": "mm",
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        "seat": "z = 0",
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
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        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "QFN-16-EP(3x3)",
      "Category": "PMIC",
      "Pins": "17"
    }
  },
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  "discovery_triggers": [
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  "discovery_pitch": "BQ24072RGTR (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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  "variants": [
    {
      "mpn": "BQ24072RGTR",
      "kind": "packaging"
    },
    {
      "mpn": "BQ24072RGTRRGTT",
      "kind": "packaging"
    },
    {
      "mpn": "BQ24073RGTR",
      "kind": "unknown"
    },
    {
      "mpn": "BQ24073RGTT",
      "kind": "unknown"
    },
    {
      "mpn": "BQ24074RGTR",
      "kind": "unknown"
    },
    {
      "mpn": "BQ24074RGTT",
      "kind": "unknown"
    },
    {
      "mpn": "BQ24075RGTR",
      "kind": "unknown"
    },
    {
      "mpn": "BQ24075RGTT",
      "kind": "unknown"
    },
    {
      "mpn": "BQ24079RGTR",
      "kind": "unknown"
    },
    {
      "mpn": "BQ24079RGTT",
      "kind": "unknown"
    }
  ],
  "updated_at": "2026-09-24T18:00:45.590Z"
}