BQ25890RTWR

{
  "slug": "bq25890rtwr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Battery Management, WQFN-24-EP(4x4). Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "bq25890rtwr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "bq25890rtwr.kicad_sym",
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    "bq25890rtwr.glb",
    "bq25890rtwr.step",
    "bq25890rtwr.lbr",
    "docs/hero.png",
    "docs/bq25890rtwr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
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  "component": {
    "mpn": "BQ25890RTWR",
    "manufacturer": "Texas Instruments",
    "package": "WQFN-24-EP(4x4)",
    "pin_count": 25,
    "category": "Power Management (PMIC)",
    "subcategory": "Battery Management",
    "datasheet": "https://www.ti.com/cn/lit/gpn/bq25890",
    "parts": {
      "symbol": "bq25890rtwr.kicad_sym",
      "footprint": "bq25890rtwr.kicad_mod",
      "model_3d": "bq25890rtwr-etched.glb",
      "model_3d_plain": "bq25890rtwr.glb",
      "model_3d_step": "bq25890rtwr-etched.step",
      "model_3d_step_plain": "bq25890rtwr.step",
      "lbr": "bq25890rtwr.lbr"
    },
    "distributor_links": {
      "lcsc": "C130451"
    },
    "pins": [
      {
        "number": "1",
        "name": "VBUS",
        "type": "power_in",
        "description": "Charger input voltage (3.9V to 14V) with integrated reverse-blocking MOSFET to PMID; place 1µF ceramic capacitor from VBUS to PGND close to IC."
      },
      {
        "number": "2",
        "name": "D+",
        "type": "bidirectional",
        "description": "USB data line positive for BC1.2 identification of charger type and adjustable high-voltage adapter detection."
      },
      {
        "number": "3",
        "name": "D-",
        "type": "bidirectional",
        "description": "USB data line negative for BC1.2 identification of charger type and adjustable high-voltage adapter detection."
      },
      {
        "number": "4",
        "name": "STAT",
        "type": "output",
        "description": "Open-drain charge status output pulled-HIGH externally; LOW indicates charging in progress, HIGH indicates charging complete or disabled."
      },
      {
        "number": "5",
        "name": "SCL",
        "type": "input",
        "description": "I2C clock open-drain input; connect to logic rail (1.8V-3.3V) through 10kΩ pull-up resistor."
      },
      {
        "number": "6",
        "name": "SDA",
        "type": "bidirectional",
        "description": "I2C data open-drain bidirectional line; connect to logic rail (1.8V-3.3V) through 10kΩ pull-up resistor."
      },
      {
        "number": "7",
        "name": "INT",
        "type": "output",
        "description": "Open-drain interrupt output delivering active-LOW 256µs pulse for charger status changes and fault events; connect via 10kΩ pull-up."
      },
      {
        "number": "8",
        "name": "OTG",
        "type": "input",
        "description": "Active-HIGH enable input for boost (OTG) mode; boost activates when OTG_CONFIG=1 and OTG pin HIGH."
      },
      {
        "number": "9",
        "name": "CE",
        "type": "input",
        "description": "Active-LOW charge enable control input; charging enabled when CHG_CONFIG=1 and CE=LOW; must be pulled to logic level."
      },
      {
        "number": "10",
        "name": "ILIM",
        "type": "input",
        "description": "Analog input for programmable input current limit; resistor from ILIM to GND sets maximum as IINMAX=KILIM/RILIM with 0.8V regulation threshold."
      },
      {
        "number": "11",
        "name": "TS",
        "type": "input",
        "description": "Thermistor analog input for battery temperature monitoring with 103AT NTC thermistor; charge suspends outside configured temperature range."
      },
      {
        "number": "12",
        "name": "QON",
        "type": "input",
        "description": "Battery FET control input with internal pull-up; LOW for 1s duration exits shipping mode, or LOW for 15s resets system when VBUS disconnected."
      },
      {
        "number": "13",
        "name": "BAT",
        "type": "power_in",
        "description": "Battery positive terminal connection with integrated BATFET between BAT and SYS; place 10µF capacitor close to pin."
      },
      {
        "number": "14",
        "name": "BAT",
        "type": "power_in",
        "description": "Battery positive terminal connection with integrated BATFET between BAT and SYS; place 10µF capacitor close to pin."
      },
      {
        "number": "15",
        "name": "SYS",
        "type": "power_out",
        "description": "System output regulated above minimum voltage (3.0V-3.7V) by converter even with depleted battery; place 20µF capacitor close to pin."
      },
      {
        "number": "16",
        "name": "SYS",
        "type": "power_out",
        "description": "System output regulated above minimum voltage (3.0V-3.7V) by converter even with depleted battery; place 20µF capacitor close to pin."
      },
      {
        "number": "17",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground for high-current converter stages internally connected to LSFET source; connect directly to input/output capacitor grounds."
      },
      {
        "number": "18",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground for high-current converter stages internally connected to LSFET source; connect directly to input/output capacitor grounds."
      },
      {
        "number": "19",
        "name": "SW",
        "type": "output",
        "description": "PWM switching node connected to inductor output and LSFET source; place 0.047µF bootstrap capacitor from SW to BTST."
      },
      {
        "number": "20",
        "name": "SW",
        "type": "output",
        "description": "PWM switching node connected to inductor output and LSFET source; place 0.047µF bootstrap capacitor from SW to BTST."
      },
      {
        "number": "21",
        "name": "BTST",
        "type": "power_out",
        "description": "Bootstrap supply for high-side gate driver powered by internal bootstrap diode from SW node; connect 0.047µF bootstrap capacitor."
      },
      {
        "number": "22",
        "name": "REGN",
        "type": "power_out",
        "description": "Internal LDO regulated output (5.6V-6.4V) powering gate drivers and TS bias; connect 4.7µF capacitor from REGN to analog GND close to IC."
      },
      {
        "number": "23",
        "name": "PMID",
        "type": "output",
        "description": "Power management mid-point connected to RBFET drain and HSFET drain; place 1µF on VBUS-PGND and remaining input capacitance on PMID-PGND."
      },
      {
        "number": "24",
        "name": "DSEL",
        "type": "output",
        "description": "Open-drain D+/D- detection multiplexer control output pulled-HIGH externally; driven LOW during D+/D- detection and held LOW for MaxCharge adapters."
      },
      {
        "number": "25",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-4-6",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "exposed pad 25 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint"
        ],
        "pages_sent": 70,
        "cost_usd": 0.6576,
        "at": "2026-09-22T03:40:45"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/bq25890",
        "pages": 70,
        "sha256": "2e8c133466478bb3",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 25,
        "described": 25,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
    },
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        "checked": "2026-10-07",
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  }
}