BQ7721602PWR

{
  "slug": "bq7721602pwr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Battery Management, TSSOP-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "bq7721602pwr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "bq7721602pwr.kicad_sym",
    "bq7721602pwr.kicad_mod",
    "bq7721602pwr.glb",
    "bq7721602pwr.step",
    "bq7721602pwr.lbr",
    "docs/hero.png",
    "docs/bq7721602pwr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "bq7721602pwr-hero.glb",
    "bq7721602pwr-hero.overlay.json"
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  "component": {
    "mpn": "BQ7721602PWR",
    "manufacturer": "Texas Instruments",
    "package": "TSSOP-24",
    "pin_count": 24,
    "category": "Power Management (PMIC)",
    "subcategory": "Battery Management",
    "datasheet": "https://www.ti.com/cn/lit/gpn/bq77216",
    "parts": {
      "symbol": "bq7721602pwr.kicad_sym",
      "footprint": "bq7721602pwr.kicad_mod",
      "model_3d": "bq7721602pwr-hero.glb",
      "model_3d_plain": "bq7721602pwr.glb",
      "model_3d_step": "bq7721602pwr-etched.step",
      "model_3d_step_plain": "bq7721602pwr.step",
      "lbr": "bq7721602pwr.lbr"
    },
    "distributor_links": {
      "lcsc": "C3682308",
      "digikey": "296-BQ7721602PWRTR-ND",
      "mouser": "595-BQ7721602PWR"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T18:53:14Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-BQ7721602PWRTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-BQ7721602PWR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "NC",
        "type": "unconnected",
        "description": "Not electrically connected internally; may be left floating."
      },
      {
        "number": "2",
        "name": "VDD",
        "type": "power_in",
        "description": "Non-regulated IC supply input, recommended 5 V to 75 V with an 85 V absolute maximum (VDD to VSS); a series resistor limits current and a capacitor to ground filters noise."
      },
      {
        "number": "3",
        "name": "V16",
        "type": "input",
        "description": "Voltage sense input for the positive terminal of the 16th cell from the bottom of the pack; Vn to Vn-1 recommended 0 V to 5 V, absolute maximum -0.3 V to 85 V to VSS, and requires a series RC filter."
      },
      {
        "number": "4",
        "name": "V15",
        "type": "input",
        "description": "Voltage sense input for the positive terminal of the 15th cell from the bottom of the pack; Vn to Vn-1 recommended 0 V to 5 V, absolute maximum -0.3 V to 85 V to VSS, and requires a series RC filter."
      },
      {
        "number": "5",
        "name": "V14",
        "type": "input",
        "description": "Voltage sense input for the positive terminal of the 14th cell from the bottom of the pack; Vn to Vn-1 recommended 0 V to 5 V, absolute maximum -0.3 V to 85 V to VSS, and requires a series RC filter."
      },
      {
        "number": "6",
        "name": "V13",
        "type": "input",
        "description": "Voltage sense input for the positive terminal of the 13th cell from the bottom of the pack; Vn to Vn-1 recommended 0 V to 5 V, absolute maximum -0.3 V to 85 V to VSS, and requires a series RC filter."
      },
      {
        "number": "7",
        "name": "V12",
        "type": "input",
        "description": "Voltage sense input for the positive terminal of the 12th cell from the bottom of the pack; Vn to Vn-1 recommended 0 V to 5 V, absolute maximum -0.3 V to 85 V to VSS, and requires a series RC filter."
      },
      {
        "number": "8",
        "name": "V11",
        "type": "input",
        "description": "Voltage sense input for the positive terminal of the 11th cell from the bottom of the pack; Vn to Vn-1 recommended 0 V to 5 V, absolute maximum -0.3 V to 85 V to VSS, and requires a series RC filter."
      },
      {
        "number": "9",
        "name": "V10",
        "type": "input",
        "description": "Voltage sense input for the positive terminal of the 10th cell from the bottom of the pack; Vn to Vn-1 recommended 0 V to 5 V, absolute maximum -0.3 V to 85 V to VSS, and requires a series RC filter."
      },
      {
        "number": "10",
        "name": "V9",
        "type": "input",
        "description": "Voltage sense input for the positive terminal of the 9th cell from the bottom of the pack; Vn to Vn-1 recommended 0 V to 5 V, absolute maximum -0.3 V to 85 V to VSS, and requires a series RC filter."
      },
      {
        "number": "11",
        "name": "V8",
        "type": "input",
        "description": "Voltage sense input for the positive terminal of the 8th cell from the bottom of the pack; Vn to Vn-1 recommended 0 V to 5 V, absolute maximum -0.3 V to 85 V to VSS, and requires a series RC filter."
      },
      {
        "number": "12",
        "name": "V7",
        "type": "input",
        "description": "Voltage sense input for the positive terminal of the 7th cell from the bottom of the pack; Vn to Vn-1 recommended 0 V to 5 V, absolute maximum -0.3 V to 85 V to VSS, and requires a series RC filter."
      },
      {
        "number": "13",
        "name": "V6",
        "type": "input",
        "description": "Voltage sense input for the positive terminal of the 6th cell from the bottom of the pack; Vn to Vn-1 recommended 0 V to 5 V, absolute maximum -0.3 V to 85 V to VSS, and requires a series RC filter."
      },
      {
        "number": "14",
        "name": "V5",
        "type": "input",
        "description": "Voltage sense input for the positive terminal of the 5th cell from the bottom of the pack; Vn to Vn-1 recommended 0 V to 5 V, absolute maximum -0.3 V to 85 V to VSS, and requires a series RC filter."
      },
      {
        "number": "15",
        "name": "NC",
        "type": "unconnected",
        "description": "Not electrically connected internally; may be left floating."
      },
      {
        "number": "16",
        "name": "NC",
        "type": "unconnected",
        "description": "Not electrically connected internally; may be left floating."
      },
      {
        "number": "17",
        "name": "V4",
        "type": "input",
        "description": "Voltage sense input for the positive terminal of the 4th cell from the bottom of the pack; Vn to Vn-1 recommended 0 V to 5 V, absolute maximum -0.3 V to 85 V to VSS, and requires a series RC filter."
      },
      {
        "number": "18",
        "name": "V3",
        "type": "input",
        "description": "Voltage sense input for the positive terminal of the 3rd cell from the bottom of the pack; Vn to Vn-1 recommended 0 V to 5 V, absolute maximum -0.3 V to 85 V to VSS, and requires a series RC filter."
      },
      {
        "number": "19",
        "name": "V2",
        "type": "input",
        "description": "Voltage sense input for the positive terminal of the 2nd cell from the bottom of the pack; Vn to Vn-1 recommended 0 V to 5 V, absolute maximum -0.3 V to 85 V to VSS, and requires a series RC filter."
      },
      {
        "number": "20",
        "name": "V1",
        "type": "input",
        "description": "Voltage sense input for the positive terminal of the lowest cell in the pack; V1 to VSS recommended 0 V to 5 V, absolute maximum -0.3 V to 85 V, and requires a series RC filter."
      },
      {
        "number": "21",
        "name": "VSS",
        "type": "power_in",
        "description": "Electrically connected to the IC ground and the negative terminal of the lowest cell in the pack; should connect to the CELL- terminal per the layout guidelines."
      },
      {
        "number": "22",
        "name": "COUT",
        "type": "output",
        "description": "Fault output for overvoltage, open-wire, undertemperature and overtemperature; for this variant it is configured active-high driving to 6 V, absolute maximum COUT to VSS -0.3 V to 85 V, and may be left floating when unused."
      },
      {
        "number": "23",
        "name": "DOUT",
        "type": "output",
        "description": "Fault output for undervoltage, open-wire, undertemperature and overtemperature; for this variant it is configured active-high driving to 6 V, absolute maximum DOUT to VSS -0.3 V to 85 V, and may be left floating when unused."
      },
      {
        "number": "24",
        "name": "TS",
        "type": "input",
        "description": "Temperature sensor input with a recommended range of 0 V to 1.5 V (absolute maximum -0.3 V to 1.5 V); if unused, connect to VSS through a 10 kΩ resistor."
      }
    ],
    "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: Package confirmed: BQ7721602 is listed as 24-pin TSSOP (PW) with 2000-piece tape and reel for BQ7721; The datasheet supplied is the Chinese translation (TI notes the translation is not guaranteed accura; Output type for COUT and DOUT is taken from the BQ7721602 row of the comparison table (page 4): acti"
        ],
        "pages_sent": 29,
        "cost_usd": 0.1368,
        "at": "2026-10-08T18:52:35"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/bq77216",
        "pages": 29,
        "sha256": "090af0809348e250",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 24,
        "described": 24,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "file": "bq7721602pwr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          7.8,
          0.97
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "706322f42d9793ebf28d5b80100a68bfa8769998a00b78acadf7af937fc1454f",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bq7721602pwr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "674d1f50e13c8fc6d8b340257b55a20daa658d3e0bf9b2d5810bde6a0d1c61db",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}