BQ25619ERTWR

{
  "schema_version": 1,
  "type": "component",
  "slug": "bq25619ertwr",
  "title": "BQ25619ERTWR",
  "brief": "Texas Instruments Battery Management ICs, WQFN-24(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power supply chip",
    "bq25619ertwr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "BQ25619ERTWR",
    "manufacturer": "Texas Instruments",
    "package": "WQFN-24(4x4)",
    "pin_count": 25,
    "category": "Power Supply Chip",
    "subcategory": "Battery Management ICs",
    "datasheet": "https://www.ti.com/cn/lit/gpn/bq25619e",
    "parts": {
      "symbol": "bq25619ertwr.kicad_sym",
      "footprint": "bq25619ertwr.kicad_mod",
      "model_3d": "bq25619ertwr-hero.glb",
      "model_3d_plain": "bq25619ertwr-etched.glb",
      "model_3d_step": "bq25619ertwr-etched.step",
      "model_3d_step_plain": "bq25619ertwr.step",
      "lbr": "bq25619ertwr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2873446",
      "digikey": "296-BQ25619ERTWRTR-ND",
      "mouser": "595-BQ25619ERTWR"
    },
    "distributor_check": {
      "checked_at": "2026-11-07T00:53:23Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-BQ25619ERTWRTR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-BQ25619ERTWR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VAC",
        "type": "input",
        "description": "Input voltage sensing pin that must be connected to VBUS; used for input overvoltage (ACOV) detection."
      },
      {
        "number": "2",
        "name": "PSEL",
        "type": "input",
        "description": "Power source selection input: high sets 500mA input current limit, low sets 2.4A, and the host can later program IINDPM through I2C."
      },
      {
        "number": "3",
        "name": "/PG",
        "type": "output",
        "description": "Open-drain active-low power-good indicator, pulled up through 10kΩ; low means a good input source (BQ25619E only)."
      },
      {
        "number": "4",
        "name": "STAT",
        "type": "output",
        "description": "Open-drain charger status output pulled up through 10kΩ: low when charging, high when charge complete or sleep, blinks at 1Hz on charge suspend fault."
      },
      {
        "number": "5",
        "name": "SCL",
        "type": "input",
        "description": "I2C interface clock, connected to the logic rail through a 10kΩ resistor."
      },
      {
        "number": "6",
        "name": "SDA",
        "type": "bidirectional",
        "description": "I2C interface data, open-drain, connected to the logic rail through a 10kΩ resistor."
      },
      {
        "number": "7",
        "name": "/INT",
        "type": "output",
        "description": "Open-drain interrupt output pulled up to the logic rail through 10kΩ; sends an active-low 256μs pulse to the host to report charger status and faults."
      },
      {
        "number": "8",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected; leave this pin floating."
      },
      {
        "number": "9",
        "name": "/CE",
        "type": "input",
        "description": "Charge enable input; battery charging is enabled when the pin is driven low."
      },
      {
        "number": "10",
        "name": "BATSNS",
        "type": "bidirectional",
        "description": "Battery voltage sensing pin for charge voltage regulation; connect as close as possible to the battery pack positive terminal to minimize parasitic lead resistance."
      },
      {
        "number": "11",
        "name": "TS",
        "type": "input",
        "description": "Battery temperature qualification voltage input for an NTC thermistor (103AT-2 recommended) with a REGN-TS-GND divider; charging suspends when the voltage is out of range."
      },
      {
        "number": "12",
        "name": "/QON",
        "type": "input",
        "description": "BATFET enable/reset control input with internal 200kΩ pull-up to VBAT and 6.5V internal clamp; low for tSHIPMODE exits ship mode, low for tQON_RST (min 8s) resets the system."
      },
      {
        "number": "13",
        "name": "BAT",
        "type": "power_in",
        "description": "Battery connection to the pack positive terminal, with internal current sense resistor between SYS and BAT; connect a 10µF capacitor close to the pin."
      },
      {
        "number": "14",
        "name": "BAT",
        "type": "power_in",
        "description": "Battery connection to the pack positive terminal, with internal current sense resistor between SYS and BAT; connect a 10µF capacitor close to the pin."
      },
      {
        "number": "15",
        "name": "SYS",
        "type": "power_out",
        "description": "Converter output connection point with internal current sense resistor between SYS and BAT; connect at least 10µF close to the pin."
      },
      {
        "number": "16",
        "name": "SYS",
        "type": "power_out",
        "description": "Converter output connection point with internal current sense resistor between SYS and BAT; connect at least 10µF close to the pin."
      },
      {
        "number": "17",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "18",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "19",
        "name": "SW",
        "type": "power_out",
        "description": "Switching node connected to the output inductor, internally the source of the HSFET and drain of the LSFET; a 0.047μF bootstrap capacitor goes between SW and BTST."
      },
      {
        "number": "20",
        "name": "SW",
        "type": "power_out",
        "description": "Switching node connected to the output inductor, internally the source of the HSFET and drain of the LSFET; a 0.047μF bootstrap capacitor goes between SW and BTST."
      },
      {
        "number": "21",
        "name": "BTST",
        "type": "power_in",
        "description": "PWM high-side driver positive supply, internally connected to the bootstrap diode cathode; connect a 0.047μF bootstrap capacitor between SW and BTST."
      },
      {
        "number": "22",
        "name": "REGN",
        "type": "power_out",
        "description": "PWM low-side driver positive supply output, internally connected to the bootstrap diode anode; connect a 4.7µF (10V rated) ceramic capacitor to analog GND close to the IC."
      },
      {
        "number": "23",
        "name": "PMID",
        "type": "passive",
        "description": "Connected to the drain of the reverse blocking MOSFET (RBFET) and the drain of the HSFET; typical capacitance 2x4.7μF + 1nF between PMID and GND."
      },
      {
        "number": "24",
        "name": "VBUS",
        "type": "power_in",
        "description": "Charger input voltage with the internal reverse blocking MOSFET between VBUS and PMID; place a 1μF ceramic capacitor between VBUS and GND as close to the IC as possible."
      },
      {
        "number": "25",
        "name": "PAD",
        "type": "power_in",
        "description": "Thermal pad that is the device ground reference and low thermal impedance path to the PCB; must be connected externally to the ground plane."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The pin table shows no pin number for the thermal pad (printed as '—'). I assigned '25' by conventio; The datasheet lists type codes (P, DO, AIO) rather than ERC classes. I mapped BAT, SYS, SW, BTST, RE; Names differ between the figure and the table: the figure labels the ground pins PGND, the table lab"
        ],
        "pages_sent": 38,
        "cost_usd": 0.2565,
        "at": "2026-11-07T00:53:15"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/bq25619e",
        "pages": 64,
        "sha256": "19f9af0505f17f92",
        "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": "bq25619ertwr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4,
          4,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "096fc110543e6d324c5120c2d38e3dca87a389da9b6fac234f1fe40856295ef4",
        "checked": "2026-11-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bq25619ertwr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4,
          4,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "1932a43bec7a1e63985fc3434617ae3dbea68c4494f5db839f0af8f5a66fa20e",
        "checked": "2026-11-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "WQFN-24(4x4)",
      "Category": "Power Supply Chip",
      "Pins": "25"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "19f9af0505f17f920373f15d250c517d4e4438964f042ab5bbaf577d3a8a4f8c",
      "rows": [
        {
          "name": "Voltage VBUS (converter not switching)",
          "symbol": "VBUS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -2,
          "typ": null,
          "max": 22,
          "conditions": "转换器不进行开关",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Voltage PMID (converter not switching)",
          "symbol": "PMID",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 22,
          "conditions": "转换器不进行开关",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Voltage SW",
          "symbol": "SW",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 16,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Voltage BAT, SYS (converter not switching)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "转换器不进行开关",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Voltage BTST",
          "symbol": "BTST",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 22,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Voltage PSEL, STAT, SCL, SDA, INT, PG, CE, TS, QON",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Output sink current SDA, STAT, INT, PG",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Input voltage VVBUS",
          "symbol": "VVBUS",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4,
          "typ": null,
          "max": 13.5,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Battery voltage VBAT",
          "symbol": "VBAT",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 4.52,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Input current IVBUS",
          "symbol": "IVBUS",
          "kind": "recommended_operating",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 3.2,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Output current (SW)",
          "symbol": "ISW",
          "kind": "recommended_operating",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 1.8,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Fast charge current",
          "symbol": "IBAT",
          "kind": "recommended_operating",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Ambient temperature",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Inductance",
          "symbol": "L",
          "kind": "recommended_operating",
          "unit": "µH",
          "min": 1,
          "typ": null,
          "max": 2.2,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "VBUS capacitance",
          "symbol": "CVBUS",
          "kind": "recommended_operating",
          "unit": "µF",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "REGN capacitance",
          "symbol": "CREGN",
          "kind": "recommended_operating",
          "unit": "µF",
          "min": null,
          "typ": 4.7,
          "max": null,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Quiescent battery current (BATSNS, BAT, SYS, SW)",
          "symbol": "IQ_BAT",
          "kind": "electrical",
          "unit": "µA",
          "min": 9.5,
          "typ": null,
          "max": 15,
          "conditions": "VBAT = 4.5V，VBUS 悬空，SCL，SDA = 0V 或 1.8V，TJ < 85°C，BATFET 启用",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Shipping mode battery current (BATSNS, BAT, SYS, SW)",
          "symbol": "ISHIP_BAT",
          "kind": "electrical",
          "unit": "µA",
          "min": 7,
          "typ": null,
          "max": 9.5,
          "conditions": "VBAT = 4.5V，VBUS 悬空，SCL，SDA = 0V 或 1.8V，TJ < 85°C，BATFET 禁用",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "High-impedance mode quiescent input current (VAC/VBUS)",
          "symbol": "IHIZ_VBUS",
          "kind": "electrical",
          "unit": "µA",
          "min": 37,
          "typ": null,
          "max": 50,
          "conditions": "VAC/VBUS = 5V，高阻态模式，无电池",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "High-impedance mode quiescent input current (VAC/VBUS)",
          "symbol": "IHIZ_VBUS",
          "kind": "electrical",
          "unit": "µA",
          "min": 68,
          "typ": null,
          "max": 90,
          "conditions": "VAC/VBUS = 12V，高阻态模式，无电池",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "VBUS rising threshold for active I2C, no battery",
          "symbol": "VVBUS_UVLOZ",
          "kind": "electrical",
          "unit": "V",
          "min": 3.3,
          "typ": null,
          "max": 3.7,
          "conditions": "VBUS 上升用于有源 I2C，无电池",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "VBUS falling threshold to disable I2C, no battery",
          "symbol": "VVBUS_UVLO",
          "kind": "electrical",
          "unit": "V",
          "min": 3,
          "typ": null,
          "max": 3.3,
          "conditions": "VBUS 下降以关闭 I2C，无电池",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "VBUS rising threshold to enable REGN",
          "symbol": "VVBUS_PRESENT",
          "kind": "electrical",
          "unit": "V",
          "min": 3.65,
          "typ": null,
          "max": 3.9,
          "conditions": "通过 VBUS 来启用 REGN，VBUS 上升",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "VBUS falling threshold to disable REGN",
          "symbol": "VVBUS_PRESENTZ",
          "kind": "electrical",
          "unit": "V",
          "min": 3.15,
          "typ": null,
          "max": 3.4,
          "conditions": "通过 VBUS 来禁用 REGN，VBUS 下降",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Sleep mode entry threshold VBUS - VBAT",
          "symbol": "VSLEEP",
          "kind": "electrical",
          "unit": "mV",
          "min": 15,
          "typ": 60,
          "max": 110,
          "conditions": "VBUS 下降，VBUS - VBAT，VBAT = 4V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Sleep mode exit threshold VBUS - VBAT",
          "symbol": "VSLEEPZ",
          "kind": "electrical",
          "unit": "mV",
          "min": 115,
          "typ": 220,
          "max": 340,
          "conditions": "VBUS 上升，VBUS - VBAT，VBAT = 4V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "VAC overvoltage rising threshold (switch off)",
          "symbol": "VACOV",
          "kind": "electrical",
          "unit": "V",
          "min": 13.5,
          "typ": 14.2,
          "max": 14.85,
          "conditions": "VAC 上升，OVP[1:0]=11（默认值）",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "System minimum regulation voltage",
          "symbol": "VSYS_MIN",
          "kind": "electrical",
          "unit": "V",
          "min": 3.5,
          "typ": null,
          "max": 3.65,
          "conditions": "VBAT = 3.2V < SYS_MIN = 3.5V，ISYS = 0A",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Charge voltage accuracy VREG = 4.2V",
          "symbol": "VREG_ACC",
          "kind": "electrical",
          "unit": "V",
          "min": 4.179,
          "typ": 4.2,
          "max": 4.221,
          "conditions": "VREG = 4.2V，TJ = –40°C - 85°C",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Charge voltage accuracy VREG = 4.35V",
          "symbol": "VREG_ACC",
          "kind": "electrical",
          "unit": "V",
          "min": 4.329,
          "typ": 4.35,
          "max": 4.371,
          "conditions": "VREG = 4.35V，TJ = –40°C - 85°C",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Charge voltage accuracy VREG = 4.45V",
          "symbol": "VREG_ACC",
          "kind": "electrical",
          "unit": "V",
          "min": 4.428,
          "typ": 4.45,
          "max": 4.472,
          "conditions": "VREG = 4.45V，TJ = –40°C - 85°C",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Fast charge current accuracy ICHG = 0.24A",
          "symbol": "ICHG_ACC",
          "kind": "electrical",
          "unit": "A",
          "min": 0.216,
          "typ": 0.24,
          "max": 0.264,
          "conditions": "ICHG = 0.24A，VBAT = 3.1V 或 3.8V，TJ = –40°C - 85°C",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Fast charge current accuracy ICHG = 0.72A",
          "symbol": "ICHG_ACC",
          "kind": "electrical",
          "unit": "A",
          "min": 0.6768,
          "typ": 0.72,
          "max": 0.7632,
          "conditions": "ICHG = 0.72A，VBAT = 3.1V 或 3.8V，TJ = –40°C - 85°C",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Fast charge current accuracy ICHG = 1.50A",
          "symbol": "ICHG_ACC",
          "kind": "electrical",
          "unit": "A",
          "min": 1.41,
          "typ": 1.5,
          "max": 1.59,
          "conditions": "ICHG = 1.50A，VBAT = 3.1V 或 3.8V，TJ = –40°C - 85°C",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Precharge current accuracy",
          "symbol": "IPRECHG_ACC",
          "kind": "electrical",
          "unit": "mA",
          "min": 28,
          "typ": 40,
          "max": 52,
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