BQ25505RGRR

{
  "slug": "bq25505rgrr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Power Management Specialized - PMIC, VQFN-20-EP(3.5x3.5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management ics",
    "bq25505rgrr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "bq25505rgrr.kicad_sym",
    "bq25505rgrr.kicad_mod",
    "bq25505rgrr.glb",
    "bq25505rgrr.step",
    "bq25505rgrr.lbr",
    "docs/hero.png",
    "docs/bq25505rgrr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "bq25505rgrr-hero.glb",
    "bq25505rgrr-hero.overlay.json",
    "bq25505rgrr-etched.glb"
  ],
  "component": {
    "mpn": "BQ25505RGRR",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-20-EP(3.5x3.5)",
    "pin_count": 21,
    "category": "Power Management ICs",
    "subcategory": "Power Management Specialized - PMIC",
    "datasheet": "https://www.ti.com/cn/lit/gpn/bq25505",
    "parts": {
      "symbol": "bq25505rgrr.kicad_sym",
      "footprint": "bq25505rgrr.kicad_mod",
      "model_3d": "bq25505rgrr-hero.glb",
      "model_3d_plain": "bq25505rgrr-etched.glb",
      "model_3d_step": "bq25505rgrr-etched.step",
      "model_3d_step_plain": "bq25505rgrr.step",
      "lbr": "bq25505rgrr.lbr"
    },
    "distributor_links": {
      "lcsc": "C882746",
      "digikey": "296-37078-2-ND",
      "mouser": "595-BQ25505RGRR"
    },
    "distributor_check": {
      "checked_at": "2026-10-30T11:52:47Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-37078-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-BQ25505RGRR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VSS",
        "type": "power_in",
        "description": "General ground connection for the device; place the VIN_DC capacitor (at least 4.7 µF) and VSTOR capacitors close to this pin."
      },
      {
        "number": "2",
        "name": "VIN_DC",
        "type": "power_in",
        "description": "DC voltage input from energy harvesters (0.1 V to 5.1 V recommended); connect at least a 4.7-µF capacitor as close as possible between this pin and pin 1."
      },
      {
        "number": "3",
        "name": "VOC_SAMP",
        "type": "input",
        "description": "Sampling pin for the MPPT network; connect to VSTOR to sample at 80% of source open-circuit voltage, to GND for 50%, or to the mid-point of an external divider between VIN_DC and GND."
      },
      {
        "number": "4",
        "name": "VREF_SAMP",
        "type": "passive",
        "description": "Connect a 0.01-µF low-leakage capacitor from this pin to GND to store the voltage to which VIN_DC will be regulated, provided by the MPPT sample circuit."
      },
      {
        "number": "5",
        "name": "EN",
        "type": "input",
        "description": "Active-low digital programming input for enabling/disabling the IC; connect to GND to enable the IC."
      },
      {
        "number": "6",
        "name": "NC",
        "type": "unconnected",
        "description": "Connect to VSS via the IC's PowerPad."
      },
      {
        "number": "7",
        "name": "VBAT_OV",
        "type": "input",
        "description": "Connect to the mid-point of the external resistor divider between VRDIV and GND for setting the VSTOR = VBAT_SEC overvoltage threshold."
      },
      {
        "number": "8",
        "name": "VRDIV",
        "type": "power_out",
        "description": "Biasing voltage to which the high side of the resistor divider networks is connected."
      },
      {
        "number": "9",
        "name": "VB_SEC_ON",
        "type": "output",
        "description": "Active-low push-pull driver for the secondary (rechargeable) energy storage PMOS FET; leave floating if not used."
      },
      {
        "number": "10",
        "name": "VB_PRI_ON",
        "type": "output",
        "description": "Active-low push-pull driver for the primary (nonrechargeable) energy storage PMOS FET; leave floating if not used."
      },
      {
        "number": "11",
        "name": "OK_HYST",
        "type": "input",
        "description": "Connect to the mid-point of the external resistor divider between VRDIV and GND for setting the VBAT_OK hysteresis threshold; connect to GND if not used."
      },
      {
        "number": "12",
        "name": "OK_PROG",
        "type": "input",
        "description": "Connect to the mid-point of the external resistor divider between VRDIV and GND for setting the VBAT_OK threshold; connect to GND if not used."
      },
      {
        "number": "13",
        "name": "VBAT_OK",
        "type": "output",
        "description": "Digital battery-good indicator output internally referenced to the VSTOR voltage; leave floating if not used."
      },
      {
        "number": "14",
        "name": "VBAT_PRI",
        "type": "input",
        "description": "Primary (nonrechargeable) energy storage element high-impedance sense input; leave floating if not used."
      },
      {
        "number": "15",
        "name": "VSS",
        "type": "power_in",
        "description": "Signal ground connection for the device."
      },
      {
        "number": "16",
        "name": "NC",
        "type": "unconnected",
        "description": "Connect to ground using the IC's PowerPad."
      },
      {
        "number": "17",
        "name": "NC",
        "type": "unconnected",
        "description": "Connect to ground using the IC's PowerPad."
      },
      {
        "number": "18",
        "name": "VBAT_SEC",
        "type": "bidirectional",
        "description": "Connect a secondary (rechargeable) storage element with at least 100 µF of equivalent capacitance to this pin."
      },
      {
        "number": "19",
        "name": "VSTOR",
        "type": "power_out",
        "description": "Output of the boost charger, typically connected to the system load; connect at least a 4.7-µF capacitor in parallel with a 0.1-µF capacitor close to this pin and pin 1 (VSS)."
      },
      {
        "number": "20",
        "name": "LBOOST",
        "type": "passive",
        "description": "Inductor connection for the boost charger switching node; connect a 22-µH inductor between this pin and pin 2 (VIN_DC)."
      },
      {
        "number": "21",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-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 pin-configuration figure and table are labeled 'RGT Package', but the orderable BQ2550; The Thermal Pad (exposed pad) is shown in the pin figure but has no pin number or table entry. It is; The table lists NC pins 6, 16 and 17 as 'Input', and gives no I/O type for VBAT_OV. These types are "
        ],
        "pages_sent": 9,
        "cost_usd": 0.1368,
        "at": "2026-10-30T11:52:13"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/bq25505",
        "pages": 39,
        "sha256": "dd46bc016c8753e7",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 21,
        "described": 21,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "bq25505rgrr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.52,
          3.52,
          0.9
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "bdcfeae7f615e7fc2c4543365c4ae8e5b0963fbe4f5a96fcef3d754f5aca3794",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bq25505rgrr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.52,
          3.52,
          0.9
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "5483cb597714bc3f1727714cc702cb1a289c65b9e5a2a9d3cabe639877ae8a99",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "RGR0020A (VQFN RGR, 20)",
      "source_page": 36,
      "D": {
        "nom_mm": 3.5,
        "range_mm": [
          3.35,
          3.65
        ]
      },
      "E1": {
        "nom_mm": 3.5,
        "range_mm": [
          3.35,
          3.65
        ]
      },
      "e": {
        "nom_mm": 0.5,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 0.9,
        "range_mm": [
          0.8,
          1.0
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "bq25505rgrr.step",
        "verdict": "PASS",
        "reasons": [
          "height within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  }
}