BQ40Z50RSMR-R2

{
  "schema_version": 1,
  "type": "component",
  "slug": "bq40z50rsmr-r2",
  "title": "BQ40Z50RSMR-R2",
  "brief": "Texas Instruments Global Sourcing Parts, VQFN-32-EP(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",
    "global sourcing parts",
    "bq40z50rsmr-r2",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "BQ40Z50RSMR-R2",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-32-EP(4x4)",
    "pin_count": 33,
    "category": "Global Sourcing Parts",
    "subcategory": "Global Sourcing Parts",
    "datasheet": "https://www.ti.com/cn/lit/gpn/bq40z50-r2",
    "parts": {
      "symbol": "bq40z50rsmr-r2.kicad_sym",
      "footprint": "bq40z50rsmr-r2.kicad_mod",
      "model_3d": "bq40z50rsmr-r2-etched.glb",
      "model_3d_plain": "bq40z50rsmr-r2.glb",
      "model_3d_step": "bq40z50rsmr-r2-etched.step",
      "model_3d_step_plain": "bq40z50rsmr-r2.step",
      "lbr": "bq40z50rsmr-r2.lbr"
    },
    "distributor_links": {
      "lcsc": "C2845123"
    },
    "pins": [
      {
        "number": "1",
        "name": "PBI",
        "type": "power_in",
        "description": "Backup power input pin; connect 2.2-µF capacitor to VSS for transient support"
      },
      {
        "number": "2",
        "name": "VC4",
        "type": "input",
        "description": "Cell 4 voltage and balance current input; VSS+0 to VSS+8.5V absolute maximum"
      },
      {
        "number": "3",
        "name": "VC3",
        "type": "input",
        "description": "Cell 3 voltage and balance current input; VSS+0 to VSS+8.5V absolute maximum"
      },
      {
        "number": "4",
        "name": "VC2",
        "type": "input",
        "description": "Cell 2 voltage and balance current input; VSS+0 to VSS+8.5V absolute maximum"
      },
      {
        "number": "5",
        "name": "VC1",
        "type": "input",
        "description": "Cell 1 voltage and balance current input; VSS+0 to VSS+8.5V absolute maximum"
      },
      {
        "number": "6",
        "name": "SRN",
        "type": "input",
        "description": "Coulomb counter negative sense input for integrating ADC; -0.3 to 0.3V absolute maximum"
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "Not internally connected; may be left floating or tied to VSS"
      },
      {
        "number": "8",
        "name": "SRP",
        "type": "input",
        "description": "Coulomb counter positive sense input for integrating ADC; -0.3 to 0.3V absolute maximum"
      },
      {
        "number": "9",
        "name": "VSS",
        "type": "power_in",
        "description": "Device ground connection pin"
      },
      {
        "number": "10",
        "name": "TS1",
        "type": "input",
        "description": "Thermistor 1 input for cell temperature sensing; 0 to VREG V operating range"
      },
      {
        "number": "11",
        "name": "TS2",
        "type": "input",
        "description": "Thermistor 2 input for cell temperature sensing; 0 to VREG V operating range"
      },
      {
        "number": "12",
        "name": "TS3",
        "type": "input",
        "description": "Thermistor 3 input for cell temperature sensing; 0 to VREG V operating range"
      },
      {
        "number": "13",
        "name": "TS4",
        "type": "input",
        "description": "Thermistor 4 input for cell temperature sensing; 0 to VREG V operating range"
      },
      {
        "number": "14",
        "name": "NC",
        "type": "unconnected",
        "description": "Not internally connected; may be left floating or tied to VSS"
      },
      {
        "number": "15",
        "name": "BTP_INT",
        "type": "output",
        "description": "Battery Trip Point interrupt output; 0 to 30V absolute maximum, connect to VSS if unused"
      },
      {
        "number": "16",
        "name": "PRES or SHUTDN",
        "type": "input",
        "description": "System present input for removable packs or emergency shutdown input for embedded packs; 0 to 30V absolute maximum"
      },
      {
        "number": "17",
        "name": "DISP",
        "type": "output",
        "description": "Display control output for LED segments; 0 to VBAT+0.3V absolute maximum"
      },
      {
        "number": "18",
        "name": "SMBD",
        "type": "tri_state",
        "description": "SMBus data pin, open-drain I/O with 1MΩ pulldown; 0 to 30V absolute maximum"
      },
      {
        "number": "19",
        "name": "SMBC",
        "type": "tri_state",
        "description": "SMBus clock pin, open-drain I/O with 1MΩ pulldown; 0 to 30V absolute maximum"
      },
      {
        "number": "20",
        "name": "LEDCNTLA",
        "type": "output",
        "description": "LED segment A control output; 22.5mA typical constant-current sink from VBAT−1.6V"
      },
      {
        "number": "21",
        "name": "LEDCNTLB",
        "type": "output",
        "description": "LED segment B control output; 22.5mA typical constant-current sink from VBAT−1.6V"
      },
      {
        "number": "22",
        "name": "LEDCNTLC",
        "type": "output",
        "description": "LED segment C control output; 22.5mA typical constant-current sink from VBAT−1.6V"
      },
      {
        "number": "23",
        "name": "PTC",
        "type": "input",
        "description": "Safety PTC thermistor input pin for overtemperature protection; 200-890mV trip voltage range"
      },
      {
        "number": "24",
        "name": "PTCEN",
        "type": "input",
        "description": "PTC thermistor enable pin; connect to BAT to enable or VSS to disable"
      },
      {
        "number": "25",
        "name": "FUSE",
        "type": "output",
        "description": "Fuse drive output pin for secondary protection; 6-8.65V high output for electro-chemical fuse ignition"
      },
      {
        "number": "26",
        "name": "VCC",
        "type": "power_in",
        "description": "Secondary power supply input for charger operation; 2.2-26V operating range"
      },
      {
        "number": "27",
        "name": "PACK",
        "type": "input",
        "description": "Pack voltage sense input for charger detection and current protection; 0-20V operating range"
      },
      {
        "number": "28",
        "name": "DSG",
        "type": "output",
        "description": "Discharge FET gate drive output pin; 10.5-12V typical high when enabled"
      },
      {
        "number": "29",
        "name": "NC",
        "type": "unconnected",
        "description": "Not internally connected; may be left floating or tied to VSS"
      },
      {
        "number": "30",
        "name": "PCHG",
        "type": "output",
        "description": "Precharge FET gate drive output pin; 6-8V typical high when enabled"
      },
      {
        "number": "31",
        "name": "CHG",
        "type": "output",
        "description": "Charge FET gate drive output pin; 10.5-12V typical high when enabled"
      },
      {
        "number": "32",
        "name": "BAT",
        "type": "power_in",
        "description": "Primary power supply input from battery pack positive terminal; 2.2-26V operating range"
      },
      {
        "number": "33",
        "name": "PAD",
        "type": "power_in",
        "description": "Exposed thermal pad for heat dissipation and mechanical package integrity; solder to PCB ground plane"
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 56,
        "cost_usd": 0.605,
        "at": "2026-09-24T07:31:38"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/bq40z50-r2",
        "pages": 56,
        "sha256": "67d8927ed202d901",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 33,
        "described": 33,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "bq40z50rsmr-r2.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4,
          4,
          0.6
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "7b482a511cdf2cf875c31931f9fea7f745b8dac2ea6203531cd6604f40a290cb",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bq40z50rsmr-r2-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "799b14f6379c50dc858d9cd45d90734f29ddb91142ffe70f9f35f8398b163753",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "VQFN-32-EP(4x4)",
      "Category": "Global Sourcing Parts",
      "Pins": "33"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
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  "discovery_triggers": [
    "bq40z50rsmr-r2"
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  "discovery_pitch": "BQ40Z50RSMR-R2 (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
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    "path": "docs/hero.png"
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  "files": [
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  "visibility": {
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}