BQ769142PFBR

{
  "slug": "bq769142pfbr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Battery Management, TQFP-48(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "bq769142pfbr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
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  "component": {
    "mpn": "BQ769142PFBR",
    "manufacturer": "Texas Instruments",
    "package": "TQFP-48(7x7)",
    "pin_count": 48,
    "category": "Power Management (PMIC)",
    "subcategory": "Battery Management",
    "datasheet": "https://www.ti.com/cn/lit/gpn/bq769142",
    "parts": {
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      "lbr": "bq769142pfbr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2871870",
      "digikey": "296-BQ769142PFBRTR-ND",
      "mouser": "595-BQ769142PFBR"
    },
    "distributor_check": {
      "checked_at": "2026-10-11T22:48:52Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-BQ769142PFBRTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-BQ769142PFBR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VC13A",
        "type": "input",
        "description": "Return balance current for the fourteenth cell from the bottom of the stack; this pin should be shorted to VC13B on the PCB."
      },
      {
        "number": "2",
        "name": "VC13B",
        "type": "input",
        "description": "Sense voltage input for the thirteenth cell from the bottom of the stack and balance current input for that cell."
      },
      {
        "number": "3",
        "name": "VC12A",
        "type": "input",
        "description": "Return balance current for the thirteenth cell from the bottom of the stack; this pin should be shorted to VC12B on the PCB."
      },
      {
        "number": "4",
        "name": "VC12B",
        "type": "input",
        "description": "Sense voltage input for the twelfth cell from the bottom of the stack and balance current input for that cell."
      },
      {
        "number": "5",
        "name": "VC11",
        "type": "input",
        "description": "Sense voltage input and balance current input for the eleventh cell from the bottom of the stack, and return balance current for the twelfth cell."
      },
      {
        "number": "6",
        "name": "VC10",
        "type": "input",
        "description": "Sense voltage input and balance current input for the tenth cell from the bottom of the stack, and return balance current for the eleventh cell."
      },
      {
        "number": "7",
        "name": "VC9",
        "type": "input",
        "description": "Sense voltage input and balance current input for the ninth cell from the bottom of the stack, and return balance current for the tenth cell."
      },
      {
        "number": "8",
        "name": "VC8",
        "type": "input",
        "description": "Sense voltage input and balance current input for the eighth cell from the bottom of the stack, and return balance current for the ninth cell."
      },
      {
        "number": "9",
        "name": "VC7",
        "type": "input",
        "description": "Sense voltage input and balance current input for the seventh cell from the bottom of the stack, and return balance current for the eighth cell."
      },
      {
        "number": "10",
        "name": "VC6",
        "type": "input",
        "description": "Sense voltage input and balance current input for the sixth cell from the bottom of the stack, and return balance current for the seventh cell."
      },
      {
        "number": "11",
        "name": "VC5",
        "type": "input",
        "description": "Sense voltage input and balance current input for the fifth cell from the bottom of the stack, and return balance current for the sixth cell."
      },
      {
        "number": "12",
        "name": "VC4",
        "type": "input",
        "description": "Sense voltage input and balance current input for the fourth cell from the bottom of the stack, and return balance current for the fifth cell."
      },
      {
        "number": "13",
        "name": "VC3",
        "type": "input",
        "description": "Sense voltage input and balance current input for the third cell from the bottom of the stack, and return balance current for the fourth cell."
      },
      {
        "number": "14",
        "name": "VC2",
        "type": "input",
        "description": "Sense voltage input and balance current input for the second cell from the bottom of the stack, and return balance current for the third cell."
      },
      {
        "number": "15",
        "name": "VC1",
        "type": "input",
        "description": "Sense voltage input and balance current input for the first cell from the bottom of the stack, and return balance current for the second cell."
      },
      {
        "number": "16",
        "name": "VC0",
        "type": "input",
        "description": "Sense voltage input for the negative terminal of the first cell from the bottom of the stack, and return balance current for the first cell."
      },
      {
        "number": "17",
        "name": "VSS",
        "type": "power_in",
        "description": "Device ground."
      },
      {
        "number": "18",
        "name": "SRP",
        "type": "input",
        "description": "Analog input to the coulomb counter for the top of the sense resistor; a charging current produces a positive voltage at SRP relative to SRN, and the differential voltage must stay within the ±200 mV range for current measurement."
      },
      {
        "number": "19",
        "name": "NC",
        "type": "unconnected",
        "description": "This pin is not connected to silicon."
      },
      {
        "number": "20",
        "name": "SRN",
        "type": "input",
        "description": "Analog input to the coulomb counter for the bottom of the sense resistor, paired with SRP for differential pack current measurement."
      },
      {
        "number": "21",
        "name": "TS1",
        "type": "bidirectional",
        "description": "Thermistor input or general-purpose ADC input (open-drain digital I/O with analog I/O capability)."
      },
      {
        "number": "22",
        "name": "TS2",
        "type": "bidirectional",
        "description": "Thermistor input that also functions as wakeup from SHUTDOWN, or general-purpose ADC input; should be left floating if the device is intended to enter SHUTDOWN mode."
      },
      {
        "number": "23",
        "name": "TS3",
        "type": "bidirectional",
        "description": "Thermistor input or general-purpose ADC input (open-drain digital I/O with analog I/O capability)."
      },
      {
        "number": "24",
        "name": "REG18",
        "type": "power_out",
        "description": "Internal 1.8-V LDO output, for internal use only; regulator voltage is specified at 1.6 V to 2 V."
      },
      {
        "number": "25",
        "name": "ALERT",
        "type": "bidirectional",
        "description": "Multifunction pin that can be configured as ALERT output, HDQ I/O, thermistor input, general-purpose ADC input, or general-purpose digital output."
      },
      {
        "number": "26",
        "name": "SCL",
        "type": "bidirectional",
        "description": "Multifunction pin that can be configured as I2C SCL or SPI_SCLK; I2C supports speeds up to 400 kHz."
      },
      {
        "number": "27",
        "name": "SDA",
        "type": "bidirectional",
        "description": "Multifunction pin that can be configured as I2C SDA or SPI_MISO."
      },
      {
        "number": "28",
        "name": "HDQ",
        "type": "bidirectional",
        "description": "Multifunction pin that can be configured as HDQ I/O, SPI_MOSI, thermistor input, general-purpose ADC input, or general-purpose digital output."
      },
      {
        "number": "29",
        "name": "CFETOFF",
        "type": "bidirectional",
        "description": "Multifunction pin that can be configured as CFETOFF input (disables CHG and PCHG FETs when asserted), SPI_CS, thermistor input, general-purpose ADC input, or general-purpose digital output."
      },
      {
        "number": "30",
        "name": "DFETOFF",
        "type": "bidirectional",
        "description": "Multifunction pin that can be configured as DFETOFF input (disables DSG and PDSG FETs when asserted), BOTHOFF, thermistor input, general-purpose ADC input, or general-purpose digital output."
      },
      {
        "number": "31",
        "name": "DCHG",
        "type": "bidirectional",
        "description": "Multifunction pin that can be configured as DCHG fault output, thermistor input, general-purpose ADC input, or general-purpose digital output."
      },
      {
        "number": "32",
        "name": "DDSG",
        "type": "bidirectional",
        "description": "Multifunction pin that can be configured as DDSG fault output, thermistor input, general-purpose ADC input, or general-purpose digital output."
      },
      {
        "number": "33",
        "name": "RST_SHUT",
        "type": "input",
        "description": "Digital input for reset or shutdown; driving it high resets most digital logic, and holding it high for 1 second transitions the device into SHUTDOWN mode."
      },
      {
        "number": "34",
        "name": "REG2",
        "type": "power_out",
        "description": "Second LDO output, programmable to 1.8 V, 2.5 V, 3.0 V, 3.3 V, or 5.0 V."
      },
      {
        "number": "35",
        "name": "REG1",
        "type": "power_out",
        "description": "First LDO output, programmable to 1.8 V, 2.5 V, 3.0 V, 3.3 V, or 5.0 V."
      },
      {
        "number": "36",
        "name": "REGIN",
        "type": "input",
        "description": "Input pin for the REG1 and REG2 LDOs."
      },
      {
        "number": "37",
        "name": "BREG",
        "type": "output",
        "description": "Base control signal for an external preregulator transistor."
      },
      {
        "number": "38",
        "name": "FUSE",
        "type": "bidirectional",
        "description": "Fuse sense and drive pin; can drive the gate of an NFET to blow a chemical fuse and detects an externally applied high signal when not asserted."
      },
      {
        "number": "39",
        "name": "PDSG",
        "type": "output",
        "description": "Predischarge PFET control output."
      },
      {
        "number": "40",
        "name": "PCHG",
        "type": "output",
        "description": "Precharge PFET control output."
      },
      {
        "number": "41",
        "name": "LD",
        "type": "bidirectional",
        "description": "Load detect pin, with an internal pullup from BAT used for load detect functionality."
      },
      {
        "number": "42",
        "name": "PACK",
        "type": "input",
        "description": "Pack sense input pin."
      },
      {
        "number": "43",
        "name": "DSG",
        "type": "output",
        "description": "NMOS discharge FET drive output."
      },
      {
        "number": "44",
        "name": "NC",
        "type": "unconnected",
        "description": "This pin is not connected to silicon."
      },
      {
        "number": "45",
        "name": "CHG",
        "type": "output",
        "description": "NMOS charge FET drive output."
      },
      {
        "number": "46",
        "name": "CP1",
        "type": "bidirectional",
        "description": "Charge pump capacitor pin; if not used, it should be connected to BAT (pin 47)."
      },
      {
        "number": "47",
        "name": "BAT",
        "type": "power_in",
        "description": "Primary power supply input pin; the device draws its supply current from this pin, with supply range up to 85 V absolute maximum."
      },
      {
        "number": "48",
        "name": "VC14",
        "type": "input",
        "description": "Sense voltage input, balance current input, and top-of-stack measurement point for the fourteenth cell from the bottom of the stack."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Datasheet pin table uses TI type codes (I, O, P, I/O, IA, OA, I/OA, OD, I/OD, ID). Mapped to KiCad c; Pin 1 (VC13A) and pin 3 (VC12A) are return balance-current pins that must be shorted to VC13B and VC; The datasheet pin-function table is on pages 4-6 only; the pin names and numbers were taken from it "
        ],
        "pages_sent": 25,
        "cost_usd": 0.1718,
        "at": "2026-10-11T22:48:30"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/bq769142",
        "pages": 85,
        "sha256": "7a43e8e4f6778954",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 48,
        "described": 48,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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        "sha256": "4c088dae57b49ca041a2fd6afb56311d4f1c04fb75118b9d07bbf6bd7b1d97cb",
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        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
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  }
}