BQ24040DSQT

{
  "slug": "bq24040dsqt",
  "version": "0.1.1",
  "type": "component",
  "description": "Texas Instruments Battery Management, WSON-10-EP(2x2). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "bq24040dsqt",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "bq24040dsqt.kicad_sym",
    "bq24040dsqt.kicad_mod",
    "bq24040dsqt.glb",
    "bq24040dsqt.step",
    "bq24040dsqt.lbr",
    "docs/hero.png",
    "docs/bq24040dsqt-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "bq24040dsqt-etched.step",
    "bq24040dsqt-hero.glb",
    "bq24040dsqt-hero.overlay.json"
  ],
  "component": {
    "mpn": "BQ24040DSQT",
    "manufacturer": "Texas Instruments",
    "package": "WSON-10-EP(2x2)",
    "pin_count": 11,
    "category": "Power Management (PMIC)",
    "subcategory": "Battery Management",
    "datasheet": "https://www.ti.com/cn/lit/gpn/bq24040",
    "parts": {
      "symbol": "bq24040dsqt.kicad_sym",
      "footprint": "bq24040dsqt.kicad_mod",
      "model_3d": "bq24040dsqt-hero.glb",
      "model_3d_plain": "bq24040dsqt.glb",
      "model_3d_step": "bq24040dsqt-etched.step",
      "model_3d_step_plain": "bq24040dsqt.step",
      "lbr": "bq24040dsqt.lbr"
    },
    "distributor_links": {
      "lcsc": "C2876332"
    },
    "pins": [
      {
        "number": "1",
        "name": "IN",
        "type": "power_in",
        "description": "Input power from DC adapter or USB port, rated 3.5V to 28V range with 1μF to 10μF bypass capacitor from IN to VSS."
      },
      {
        "number": "2",
        "name": "ISET",
        "type": "input",
        "description": "Programs fast-charge output current via external resistor from ISET to VSS, range 10.8kΩ (50mA) to 540Ω (1000mA)."
      },
      {
        "number": "3",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference terminal; connect exposed thermal pad to VSS and main PCB ground plane."
      },
      {
        "number": "4",
        "name": "PRE-TERM",
        "type": "input",
        "description": "Programs current termination threshold (5 to 50% of ISET fast-charge current) and pre-charge current via external 1kΩ to 10kΩ resistor."
      },
      {
        "number": "5",
        "name": "PG",
        "type": "output",
        "description": "Power good indicator open-drain output; pulls low when input voltage above UVLO and exceeds battery output voltage."
      },
      {
        "number": "6",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected; reserved for internal IC use only, do not route through this terminal."
      },
      {
        "number": "7",
        "name": "ISET2",
        "type": "input",
        "description": "Three-state programming input for input/output current limit: low selects ISET, high selects 500mA maximum (BQ24040/5), float selects 100mA maximum."
      },
      {
        "number": "8",
        "name": "CHG",
        "type": "output",
        "description": "Charge status open-drain output; pulls low during first charge cycle only, open drain when charging complete or disabled."
      },
      {
        "number": "9",
        "name": "TS",
        "type": "input",
        "description": "Temperature sense terminal for 10kΩ NTC thermistor JEITA monitoring, pull low to disable charger, float high to enable TTDM mode, connect 10kΩ resistor to VSS if not used."
      },
      {
        "number": "10",
        "name": "OUT",
        "type": "power_out",
        "description": "Battery connection and system load output terminal supporting up to 1.25A continuous current with 1μF to 10μF bypass capacitor from OUT to VSS."
      },
      {
        "number": "11",
        "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-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "exposed pad 11 added from the footprint"
        ],
        "pages_sent": 41,
        "cost_usd": 0.4414,
        "at": "2026-09-24T06:44:17"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/bq24040",
        "pages": 41,
        "sha256": "02b98f26a3a33997",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 11,
        "described": 11,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "bq24040dsqt.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.0,
          1.975,
          0.8
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f2001b3f9a6ae3d0c8b7e19aea57daac7f0bb7d40364983cd7bb958958273a6d",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bq24040dsqt-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.0,
          1.975,
          0.8
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "6818c6e93e3d8802b6db1dcc4d6c1f6e3d609c725f5511d31f71b61885b51437",
        "checked": "2026-11-13",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "title": "BQ24040DSQT",
  "brief": "Texas Instruments Battery Management, WSON-10-EP(2x2). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "WSON-10-EP(2x2)",
      "Category": "Power Management (PMIC)",
      "Pins": "11"
    }
  },
  "discovery_triggers": [
    "bq24040dsqt"
  ],
  "discovery_pitch": "BQ24040DSQT (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "visibility": "public"
}