BQ7694203PFBR

{
  "schema_version": 1,
  "type": "component",
  "slug": "bq7694203pfbr",
  "title": "BQ7694203PFBR",
  "brief": "Texas Instruments Battery Management, TQFP-48(7x7). 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 management (pmic)",
    "bq7694203pfbr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "BQ7694203PFBR",
    "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/bq76942",
    "parts": {
      "symbol": "bq7694203pfbr.kicad_sym",
      "footprint": "bq7694203pfbr.kicad_mod",
      "model_3d": "bq7694203pfbr-hero.glb",
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      "model_3d_step": "bq7694203pfbr-etched.step",
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      "lbr": "bq7694203pfbr.lbr"
    },
    "distributor_links": {
      "lcsc": "C3681813",
      "digikey": "296-BQ7694203PFBRTR-ND",
      "mouser": "595-BQ7694203PFBR"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T19:43:54Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-BQ7694203PFBRTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-BQ7694203PFBR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "NC",
        "type": "unconnected",
        "description": "This pin is not connected to silicon and may be left floating, connected to an adjacent pin, or connected to VSS."
      },
      {
        "number": "2",
        "name": "VC9",
        "type": "input",
        "description": "Sense voltage input for the ninth cell from the bottom of the stack, balance current input for that cell, and return balance current for the tenth cell; maximum VSS+85 V."
      },
      {
        "number": "3",
        "name": "NC",
        "type": "unconnected",
        "description": "This pin is not connected to silicon and may be left floating, connected to an adjacent pin, or connected to VSS."
      },
      {
        "number": "4",
        "name": "VC8",
        "type": "input",
        "description": "Sense voltage input for the eighth cell from the bottom of the stack, balance current input for that cell, and return balance current for the ninth cell; maximum VSS+85 V."
      },
      {
        "number": "5",
        "name": "NC",
        "type": "unconnected",
        "description": "This pin is not connected to silicon and may be left floating, connected to an adjacent pin, or connected to VSS."
      },
      {
        "number": "6",
        "name": "VC7",
        "type": "input",
        "description": "Sense voltage input for the seventh cell from the bottom of the stack, balance current input for that cell, and return balance current for the eighth cell; maximum VSS+85 V."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "This pin is not connected to silicon and may be left floating, connected to an adjacent pin, or connected to VSS."
      },
      {
        "number": "8",
        "name": "VC6",
        "type": "input",
        "description": "Sense voltage input for the sixth cell from the bottom of the stack, balance current input for that cell, and return balance current for the seventh cell; maximum VSS+85 V."
      },
      {
        "number": "9",
        "name": "NC",
        "type": "unconnected",
        "description": "This pin is not connected to silicon and may be left floating, connected to an adjacent pin, or connected to VSS."
      },
      {
        "number": "10",
        "name": "VC5",
        "type": "input",
        "description": "Sense voltage input for the fifth cell from the bottom of the stack, balance current input for that cell, and return balance current for the sixth cell; maximum VSS+85 V."
      },
      {
        "number": "11",
        "name": "NC",
        "type": "unconnected",
        "description": "This pin is not connected to silicon and may be left floating, connected to an adjacent pin, or connected to VSS."
      },
      {
        "number": "12",
        "name": "VC4",
        "type": "input",
        "description": "Sense voltage input for the fourth cell from the bottom of the stack, balance current input for that cell, and return balance current for the fifth cell; maximum VSS+85 V."
      },
      {
        "number": "13",
        "name": "VC3",
        "type": "input",
        "description": "Sense voltage input for the third cell from the bottom of the stack, balance current input for that cell, and return balance current for the fourth cell; maximum VSS+85 V."
      },
      {
        "number": "14",
        "name": "VC2",
        "type": "input",
        "description": "Sense voltage input for the second cell from the bottom of the stack, balance current input for that cell, and return balance current for the third cell; maximum VSS+85 V."
      },
      {
        "number": "15",
        "name": "VC1",
        "type": "input",
        "description": "Sense voltage input for the first cell from the bottom of the stack, balance current input for that cell, and return balance current for the second cell; maximum VSS+85 V."
      },
      {
        "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 that cell; connect through a resistor and capacitor to VSS (pin 17)."
      },
      {
        "number": "17",
        "name": "VSS",
        "type": "power_in",
        "description": "Device ground."
      },
      {
        "number": "18",
        "name": "SRP",
        "type": "input",
        "description": "Analog input to the internal coulomb counter for the small voltage between SRP and SRN, where SRP is the top of the sense resistor; a charging current produces a positive voltage at SRP relative to SRN, and the coulomb counter range is ±200 mV."
      },
      {
        "number": "19",
        "name": "NC",
        "type": "unconnected",
        "description": "This pin is not connected to silicon and may be left floating, connected to an adjacent pin, or connected to VSS."
      },
      {
        "number": "20",
        "name": "SRN",
        "type": "input",
        "description": "Analog input to the internal coulomb counter for the small voltage between SRP and SRN, where SRN is the bottom of the sense resistor; if unused, connect to VSS (pin 17)."
      },
      {
        "number": "21",
        "name": "TS1",
        "type": "bidirectional",
        "description": "Thermistor input or general purpose ADC input (ADCIN range is limited to the REG18 pin voltage); open-drain output type."
      },
      {
        "number": "22",
        "name": "TS2",
        "type": "bidirectional",
        "description": "Thermistor input that also functions as wakeup from SHUTDOWN, or general purpose ADC input; leave floating if the device is intended to enter SHUTDOWN mode."
      },
      {
        "number": "23",
        "name": "TS3",
        "type": "bidirectional",
        "description": "Thermistor input or general purpose ADC input; if unused, can be left floating or connected to VSS."
      },
      {
        "number": "24",
        "name": "REG18",
        "type": "power_out",
        "description": "Internal 1.8 V LDO output for internal use only (1.6 V to 2.0 V), requiring an external capacitor of 1.8 µF to 22 µF to VSS."
      },
      {
        "number": "25",
        "name": "ALERT",
        "type": "bidirectional",
        "description": "Multifunction pin configurable as ALERT output, HDQ I/O, thermistor input, general purpose ADC input, or general purpose digital output; open-drain when configured as HDQ."
      },
      {
        "number": "26",
        "name": "SCL",
        "type": "bidirectional",
        "description": "Multifunction open-drain pin configurable as I2C SCL or SPI_SCLK."
      },
      {
        "number": "27",
        "name": "SDA",
        "type": "bidirectional",
        "description": "Multifunction open-drain pin configurable as I2C SDA or SPI_MISO."
      },
      {
        "number": "28",
        "name": "HDQ",
        "type": "bidirectional",
        "description": "Multifunction pin configurable 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 configurable as CFETOFF input (driven low to disable the CHG and PCHG FETs), SPI_CS, thermistor input, general purpose ADC input, or general purpose digital output."
      },
      {
        "number": "30",
        "name": "DFETOFF",
        "type": "bidirectional",
        "description": "Multifunction pin configurable as DFETOFF or BOTHOFF input (asserted to disable the DSG and PDSG FETs, or all four FETs for BOTHOFF), thermistor input, general purpose ADC input, or general purpose digital output."
      },
      {
        "number": "31",
        "name": "DCHG",
        "type": "bidirectional",
        "description": "Multifunction pin configurable as DCHG fault output (signals a fault that would disable the CHG driver), thermistor input, general purpose ADC input, or general purpose digital output."
      },
      {
        "number": "32",
        "name": "DDSG",
        "type": "bidirectional",
        "description": "Multifunction pin configurable as DDSG fault output (signals a fault that would disable the DSG driver), thermistor input, general purpose ADC input, or general purpose digital output."
      },
      {
        "number": "33",
        "name": "RST_SHUT",
        "type": "input",
        "description": "Digital input to reset the device; if held high for 1 second the device enters SHUTDOWN mode, and it should be driven low during normal operation (connect to VSS if unused)."
      },
      {
        "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; may be left floating or connected to VSS if unused."
      },
      {
        "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, specified for 0 mA to 45 mA load; requires a 1 µF capacitor to VSS."
      },
      {
        "number": "36",
        "name": "REGIN",
        "type": "input",
        "description": "Input pin for the REG1 and REG2 LDOs; connect to VSS if unused."
      },
      {
        "number": "37",
        "name": "BREG",
        "type": "output",
        "description": "Base control signal for the external pre-regulator transistor; connect to REGIN if REGIN is driven externally and BREG is unused, otherwise to VSS if both are unused."
      },
      {
        "number": "38",
        "name": "FUSE",
        "type": "bidirectional",
        "description": "Fuse sense and drive pin that drives the gate of an NFET to blow a chemical fuse on a permanent fail, and is high-impedance when not asserted; may be left floating or connected to VSS if unused."
      },
      {
        "number": "39",
        "name": "PDSG",
        "type": "output",
        "description": "Predischarge PFET control output; leave floating if not used."
      },
      {
        "number": "40",
        "name": "PCHG",
        "type": "output",
        "description": "Precharge PFET control output; leave floating if not used."
      },
      {
        "number": "41",
        "name": "LD",
        "type": "bidirectional",
        "description": "Load detect pin with an internal pullup current of 35 µA to 172 µA from BAT when VLD is at VSS; if the DSG driver is unused, connect through a series resistor to PACK+ or to VSS."
      },
      {
        "number": "42",
        "name": "PACK",
        "type": "input",
        "description": "Pack sense input pin; maximum VSS+85 V."
      },
      {
        "number": "43",
        "name": "DSG",
        "type": "output",
        "description": "NMOS discharge FET drive output; leave floating if not used."
      },
      {
        "number": "44",
        "name": "NC",
        "type": "unconnected",
        "description": "This pin is not connected to silicon and may be left floating, connected to an adjacent pin, or connected to VSS."
      },
      {
        "number": "45",
        "name": "CHG",
        "type": "output",
        "description": "NMOS charge FET drive output; leave floating if not used."
      },
      {
        "number": "46",
        "name": "CP1",
        "type": "bidirectional",
        "description": "Charge pump capacitor pin; if the charge pump is unused, connect to BAT (pin 47), which adds about 200 µA of supply current when the charge pump is enabled."
      },
      {
        "number": "47",
        "name": "BAT",
        "type": "power_in",
        "description": "Primary power supply input; recommended operating range 4.7 V to 55 V, absolute maximum VSS+85 V."
      },
      {
        "number": "48",
        "name": "VC10",
        "type": "input",
        "description": "Sense voltage input for the tenth cell from the bottom of the stack, balance current input for that cell, and top-of-stack measurement point; maximum VSS+85 V."
      }
    ],
    "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: The datasheet is the BQ76942 family datasheet (ZHCSMR2B), not a BQ7694203-specific one. The pin tabl; The ordering addendum (page 80) lists BQ7694203PFBR as an active TQFP (PFB) 48-pin, 1000-piece T&R p; The text-extracted pinout diagram (page 4) is garbled, so pin numbers were taken from the Table 6-1 "
        ],
        "pages_sent": 26,
        "cost_usd": 0.1773,
        "at": "2026-10-08T19:43:05"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/bq76942",
        "pages": 85,
        "sha256": "a976a88e92abb957",
        "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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        "sha256": "14ca7676e4932e92f0eca0c6d56ce3018cd28a2531204a70ab7bbacb3eeb3cf5",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
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        "sha256": "274823ef3c8639a50393230b3fc84e372d377993c28e7d8b3765e0ae1e059d48",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "TQFP-48(7x7)",
      "Category": "Power Management (PMIC)",
      "Pins": "48"
    }
  },
  "variants": [],
  "sections": [
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  "discovery_pitch": "BQ7694203PFBR (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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