BQ25890RTWT

{
  "slug": "bq25890rtwt",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Battery Management, WQFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "bq25890rtwt",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "bq25890rtwt.kicad_sym",
    "bq25890rtwt.kicad_mod",
    "bq25890rtwt.glb",
    "bq25890rtwt.step",
    "bq25890rtwt.lbr",
    "docs/hero.png",
    "docs/bq25890rtwt-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "bq25890rtwt-hero.glb",
    "bq25890rtwt-hero.overlay.json"
  ],
  "component": {
    "mpn": "BQ25890RTWT",
    "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/bq25892",
    "parts": {
      "symbol": "bq25890rtwt.kicad_sym",
      "footprint": "bq25890rtwt.kicad_mod",
      "model_3d": "bq25890rtwt-hero.glb",
      "model_3d_plain": "bq25890rtwt.glb",
      "model_3d_step": "bq25890rtwt-etched.step",
      "model_3d_step_plain": "bq25890rtwt.step",
      "lbr": "bq25890rtwt.lbr"
    },
    "distributor_links": {
      "lcsc": "C2869036",
      "digikey": "296-41130-2-ND",
      "mouser": "595-BQ25890RTWT"
    },
    "distributor_check": {
      "checked_at": "2026-10-07T07:24:38Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-41130-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-BQ25890RTWT",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VBUS",
        "type": "power_in",
        "description": "Input supply voltage (3.9V to 14V); requires 1µF bypass capacitor to PGND."
      },
      {
        "number": "2",
        "name": "D+",
        "type": "bidirectional",
        "description": "USB D+ data line for port type detection via BC1.2 protocol."
      },
      {
        "number": "3",
        "name": "D-",
        "type": "bidirectional",
        "description": "USB D- data line for port type detection via BC1.2 protocol."
      },
      {
        "number": "4",
        "name": "STAT",
        "type": "output",
        "description": "Open-drain charge status indicator; LOW during charging, HIGH when complete, blinks 1Hz on fault."
      },
      {
        "number": "5",
        "name": "SCL",
        "type": "input",
        "description": "I2C serial clock input; pull up with 10kΩ resistor to logic rail."
      },
      {
        "number": "6",
        "name": "SDA",
        "type": "bidirectional",
        "description": "I2C serial data line; pull up with 10kΩ resistor to logic rail."
      },
      {
        "number": "7",
        "name": "INT",
        "type": "output",
        "description": "Open-drain interrupt output; active-low 256µs pulse on device status or fault events."
      },
      {
        "number": "8",
        "name": "OTG",
        "type": "input",
        "description": "Boost mode enable input (active HIGH); activates 5V USB OTG when OTG_CONFIG=1."
      },
      {
        "number": "9",
        "name": "CE",
        "type": "input",
        "description": "Charge enable input (active LOW); charging enabled when CHG_CONFIG=1 and CE is LOW."
      },
      {
        "number": "10",
        "name": "ILIM",
        "type": "input",
        "description": "Input current limit analog input; 0.8V reference sets maximum input current via resistor to ground."
      },
      {
        "number": "11",
        "name": "TS",
        "type": "input",
        "description": "Temperature sensor analog input; connect 103AT-2 NTC thermistor for battery charge temperature monitoring."
      },
      {
        "number": "12",
        "name": "QON",
        "type": "input",
        "description": "BATFET enable/reset control input (active LOW); exits shipping mode or performs system reset."
      },
      {
        "number": "13",
        "name": "BAT",
        "type": "power_in",
        "description": "Battery positive terminal; internal BATFET connects to SYS; requires 10µF decoupling capacitor."
      },
      {
        "number": "14",
        "name": "BAT",
        "type": "power_in",
        "description": "Battery positive terminal; internal BATFET connects to SYS; requires 10µF decoupling capacitor."
      },
      {
        "number": "15",
        "name": "SYS",
        "type": "power_out",
        "description": "System power output regulated above 3.5V minimum or 100mV above battery voltage; requires 20µF capacitor."
      },
      {
        "number": "16",
        "name": "SYS",
        "type": "power_out",
        "description": "System power output regulated above 3.5V minimum or 100mV above battery voltage; requires 20µF capacitor."
      },
      {
        "number": "17",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground for high-current switching converter; connect to ground plane and input/output capacitor returns."
      },
      {
        "number": "18",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground for high-current switching converter; connect to ground plane and input/output capacitor returns."
      },
      {
        "number": "19",
        "name": "SW",
        "type": "power_out",
        "description": "Switching node (HSFET source and LSFET drain); connects to external inductor and 0.047µF bootstrap capacitor to BTST."
      },
      {
        "number": "20",
        "name": "SW",
        "type": "power_out",
        "description": "Switching node (HSFET source and LSFET drain); connects to external inductor and 0.047µF bootstrap capacitor to BTST."
      },
      {
        "number": "21",
        "name": "BTST",
        "type": "power_out",
        "description": "Bootstrap supply for high-side gate driver; connect 0.047µF capacitor between SW and this pin."
      },
      {
        "number": "22",
        "name": "REGN",
        "type": "power_out",
        "description": "6V low-side gate driver and temperature sensor bias supply output; requires 4.7µF (10V rated) capacitor to ground."
      },
      {
        "number": "23",
        "name": "PMID",
        "type": "output",
        "description": "Input power distribution node (RBFET and HSFET drain connection); attach bypass capacitance to PGND."
      },
      {
        "number": "24",
        "name": "DSEL",
        "type": "output",
        "description": "Open-drain D+/D- multiplexer selection output (active LOW); stays LOW if MaxCharge adapter detected."
      },
      {
        "number": "25",
        "name": "PowerPAD",
        "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 25 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint"
        ],
        "pages_sent": 25,
        "cost_usd": 0.3007,
        "at": "2026-10-07T07:24:17"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/bq25892",
        "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": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "bq25890rtwt.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          4.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "096fc110543e6d324c5120c2d38e3dca87a389da9b6fac234f1fe40856295ef4",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bq25890rtwt-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
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        "footprint_binding": "identity",
        "sha256": "9fc20534d12507b68b0b3216daf1677de88df300cd6ca5bf9883c8331b1a8fde",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}