BQ76952PFBR

{
  "schema_version": 1,
  "type": "component",
  "slug": "bq76952pfbr",
  "title": "BQ76952PFBR",
  "brief": "Texas Instruments Battery Management, TQFP-48(7x7). Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "pmic",
    "bq76952pfbr"
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  "component": {
    "mpn": "BQ76952PFBR",
    "manufacturer": "Texas Instruments",
    "package": "TQFP-48(7x7)",
    "pin_count": 48,
    "category": "PMIC",
    "subcategory": "Battery Management",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2302220800_Texas-Instruments-BQ76952PFBR_C2862742.pdf",
    "parts": {
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      "model_3d_step": "bq76952pfbr-etched.step",
      "model_3d_step_plain": "bq76952pfbr.step",
      "lbr": "bq76952pfbr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2862742"
    },
    "pins": [
      {
        "number": "1",
        "name": "VC15",
        "type": "input",
        "description": "Sense voltage input for the 15th cell from the bottom of the stack; balance current input for the 15th cell and return balance current for the 16th cell. Analog input (IA), up to VSS+85V."
      },
      {
        "number": "2",
        "name": "VC14",
        "type": "input",
        "description": "Sense voltage input for the 14th cell; balance current input for the 14th cell and return balance current for the 15th cell. Analog input (IA), up to VSS+85V."
      },
      {
        "number": "3",
        "name": "VC13",
        "type": "input",
        "description": "Sense voltage input for the 13th cell; balance current input for the 13th cell and return balance current for the 14th cell. Analog input (IA), up to VSS+85V."
      },
      {
        "number": "4",
        "name": "VC12",
        "type": "input",
        "description": "Sense voltage input for the 12th cell; balance current input for the 12th cell and return balance current for the 13th cell."
      },
      {
        "number": "5",
        "name": "VC11",
        "type": "input",
        "description": "Sense voltage input for the 11th cell; balance current input for the 11th cell and return balance current for the 12th cell."
      },
      {
        "number": "6",
        "name": "VC10",
        "type": "input",
        "description": "Sense voltage input for the 10th cell; balance current input for the 10th cell and return balance current for the 11th cell."
      },
      {
        "number": "7",
        "name": "VC9",
        "type": "input",
        "description": "Sense voltage input for the 9th cell; balance current input for the 9th cell and return balance current for the 10th cell."
      },
      {
        "number": "8",
        "name": "VC8",
        "type": "input",
        "description": "Sense voltage input for the 8th cell; balance current input for the 8th cell and return balance current for the 9th cell."
      },
      {
        "number": "9",
        "name": "VC7",
        "type": "input",
        "description": "Sense voltage input for the 7th cell; balance current input for the 7th cell and return balance current for the 8th cell."
      },
      {
        "number": "10",
        "name": "VC6",
        "type": "input",
        "description": "Sense voltage input for the 6th cell; balance current input for the 6th cell and return balance current for the 7th cell."
      },
      {
        "number": "11",
        "name": "VC5",
        "type": "input",
        "description": "Sense voltage input for the 5th cell; balance current input for the 5th cell and return balance current for the 6th cell."
      },
      {
        "number": "12",
        "name": "VC4",
        "type": "input",
        "description": "Sense voltage input for the 4th cell; balance current input for the 4th cell and return balance current for the 5th cell."
      },
      {
        "number": "13",
        "name": "VC3",
        "type": "input",
        "description": "Sense voltage input for the 3rd cell; balance current input for the 3rd cell and return balance current for the 4th cell."
      },
      {
        "number": "14",
        "name": "VC2",
        "type": "input",
        "description": "Sense voltage input for the 2nd cell; balance current input for the 2nd cell and return balance current for the 3rd cell."
      },
      {
        "number": "15",
        "name": "VC1",
        "type": "input",
        "description": "Sense voltage input for the 1st (bottom) cell; balance current input for the 1st cell and return balance current for the 2nd cell."
      },
      {
        "number": "16",
        "name": "VC0",
        "type": "input",
        "description": "Sense voltage input for the negative terminal of the bottom cell, and return balance current for the 1st cell."
      },
      {
        "number": "17",
        "name": "VSS",
        "type": "power_in",
        "description": "Device ground reference."
      },
      {
        "number": "18",
        "name": "SRP",
        "type": "input",
        "description": "Analog input to the internal coulomb-counter peripheral. SRP is the top (positive) of the current-sense resistor; a charging current generates a positive voltage from SRP to SRN. Absolute range VSS-0.3 to VREG18+0.3 V."
      },
      {
        "number": "19",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected to silicon."
      },
      {
        "number": "20",
        "name": "SRN",
        "type": "input",
        "description": "Analog input to the internal coulomb-counter peripheral. SRN is the bottom (negative) side of the current-sense resistor. Absolute range VSS-0.3 to VREG18+0.3 V."
      },
      {
        "number": "21",
        "name": "TS1",
        "type": "bidirectional",
        "description": "Thermistor input or general-purpose ADC input (OD, I/OA). Configurable via device data memory."
      },
      {
        "number": "22",
        "name": "TS2",
        "type": "bidirectional",
        "description": "Thermistor input; also serves as wakeup from SHUTDOWN. Alternately general-purpose ADC input (OD, I/OA)."
      },
      {
        "number": "23",
        "name": "TS3",
        "type": "bidirectional",
        "description": "Thermistor input, or general-purpose ADC input (OD, I/OA)."
      },
      {
        "number": "24",
        "name": "REG18",
        "type": "power_out",
        "description": "Internal 1.8-V LDO output. For internal device use only; bypass capacitor required."
      },
      {
        "number": "25",
        "name": "ALERT",
        "type": "bidirectional",
        "description": "Multifunction pin: ALERT interrupt output, HDQ I/O, thermistor input, general-purpose ADC input, or general-purpose digital output. I/OD, I/OA."
      },
      {
        "number": "26",
        "name": "SCL",
        "type": "bidirectional",
        "description": "Multifunction serial-clock pin: I2C SCL or SPI SCLK, selected by the device variant/configuration. I/OD."
      },
      {
        "number": "27",
        "name": "SDA",
        "type": "bidirectional",
        "description": "Multifunction serial-data pin: I2C SDA or SPI MISO, selected by device configuration. I/OD."
      },
      {
        "number": "28",
        "name": "HDQ",
        "type": "bidirectional",
        "description": "Multifunction pin: HDQ single-wire I/O, SPI MOSI, thermistor input, general-purpose ADC input, or general-purpose digital output. I/OD, I/OA."
      },
      {
        "number": "29",
        "name": "CFETOFF",
        "type": "bidirectional",
        "description": "Multifunction pin: CFETOFF charge-FET-off control input, SPI CS, thermistor input, general-purpose ADC input, or general-purpose digital output. I/OD, I/OA."
      },
      {
        "number": "30",
        "name": "DFETOFF",
        "type": "bidirectional",
        "description": "Multifunction pin: DFETOFF discharge-FET-off control, BOTHOFF, thermistor input, general-purpose ADC input, or general-purpose digital output. I/OD, I/OA."
      },
      {
        "number": "31",
        "name": "DCHG",
        "type": "bidirectional",
        "description": "Multifunction pin: DCHG deep-charge status output, thermistor input, general-purpose ADC input, or general-purpose digital output. OD, I/OA."
      },
      {
        "number": "32",
        "name": "DDSG",
        "type": "bidirectional",
        "description": "Multifunction pin: DDSG deep-discharge status output, thermistor input, general-purpose ADC input, or general-purpose digital output. OD, I/OA."
      },
      {
        "number": "33",
        "name": "RST_SHUT",
        "type": "input",
        "description": "Digital input pin for reset or shutdown control (ID). Absolute range VSS-0.3 to VSS+6 V."
      },
      {
        "number": "34",
        "name": "REG2",
        "type": "power_out",
        "description": "Second programmable LDO output. Selectable output of 1.8, 2.5, 3.0, 3.3, or 5.0 V for powering external circuitry."
      },
      {
        "number": "35",
        "name": "REG1",
        "type": "power_out",
        "description": "First programmable LDO output. Selectable output of 1.8, 2.5, 3.0, 3.3, or 5.0 V for powering external circuitry."
      },
      {
        "number": "36",
        "name": "REGIN",
        "type": "power_in",
        "description": "Input pin for the REG1 and REG2 LDOs; typically fed from the external preregulator driven by BREG."
      },
      {
        "number": "37",
        "name": "BREG",
        "type": "output",
        "description": "Base control signal for the external preregulator transistor used to derive REGIN from the pack voltage."
      },
      {
        "number": "38",
        "name": "FUSE",
        "type": "bidirectional",
        "description": "Chemical-fuse sense and drive pin. Drives external fuse for secondary protection; absolute range up to VSS+20 V or VBAT+0.3."
      },
      {
        "number": "39",
        "name": "PDSG",
        "type": "output",
        "description": "Predischarge PFET gate-drive output. Controls an external predischarge PFET for soft turn-on of the discharge path."
      },
      {
        "number": "40",
        "name": "PCHG",
        "type": "output",
        "description": "Precharge PFET gate-drive output. Controls an external precharge PFET for soft turn-on of the charge path."
      },
      {
        "number": "41",
        "name": "LD",
        "type": "bidirectional",
        "description": "Load-detect pin; connects to the PACK+ side through a bias resistor to detect load or charger insertion. Absolute range VSS-0.3 to VSS+85 V."
      },
      {
        "number": "42",
        "name": "PACK",
        "type": "input",
        "description": "Pack sense input pin; connects to the PACK+ terminal for pack voltage measurement. Absolute range up to VSS+85 V."
      },
      {
        "number": "43",
        "name": "DSG",
        "type": "output",
        "description": "NMOS discharge-FET gate-drive output; driven by the internal charge pump for high-side discharge FET control."
      },
      {
        "number": "44",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected to silicon."
      },
      {
        "number": "45",
        "name": "CHG",
        "type": "output",
        "description": "NMOS charge-FET gate-drive output; driven by the internal charge pump for high-side charge FET control."
      },
      {
        "number": "46",
        "name": "CP1",
        "type": "bidirectional",
        "description": "Charge-pump flying capacitor pin used to build the boosted supply that drives the high-side NFET gates on CHG and DSG."
      },
      {
        "number": "47",
        "name": "BAT",
        "type": "power_in",
        "description": "Primary power-supply input. Ties to the top of the cell stack; absolute range VSS-0.3 to VSS+85 V."
      },
      {
        "number": "48",
        "name": "VC16",
        "type": "input",
        "description": "Sense voltage input for the 16th (top) cell; balance current input for the 16th cell and top-of-stack measurement point."
      }
    ],
    "provenance": {
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      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2302220800_Texas-Instruments-BQ76952PFBR_C2862742.pdf",
        "pages": 87,
        "sha256": "a9d512dfdac12910",
        "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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    },
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      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "LQFP-48_7x7mm_P0.5mm@sha256:1ccc5ad4d95398a4",
      "mark": "drawn"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "TQFP-48(7x7)",
      "Category": "PMIC",
      "Pins": "48"
    }
  },
  "sections": [
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  "discovery_triggers": [
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  "discovery_pitch": "BQ76952PFBR (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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  "updated_at": "2026-09-24T18:06:04.570Z"
}