BQ24705RGER

{
  "schema_version": 1,
  "type": "component",
  "slug": "bq24705rger",
  "title": "BQ24705RGER",
  "brief": "Texas Instruments Battery Management, VQFN-24-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",
    "power management (pmic)",
    "bq24705rger",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "BQ24705RGER",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-24-EP(4x4)",
    "pin_count": 25,
    "category": "Power Management (PMIC)",
    "subcategory": "Battery Management",
    "datasheet": "https://www.ti.com/cn/lit/gpn/bq24705",
    "parts": {
      "symbol": "bq24705rger.kicad_sym",
      "footprint": "bq24705rger.kicad_mod",
      "model_3d": "bq24705rger-hero.glb",
      "model_3d_plain": "bq24705rger.glb",
      "model_3d_step": "bq24705rger-etched.step",
      "model_3d_step_plain": "bq24705rger.step",
      "lbr": "bq24705rger.lbr"
    },
    "distributor_links": {
      "lcsc": "C2873471",
      "digikey": "296-22957-2-ND",
      "mouser": "595-BQ24705RGER"
    },
    "distributor_check": {
      "checked_at": "2026-10-11T22:50:29Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-22957-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-BQ24705RGER",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PVCC",
        "type": "power_in",
        "description": "IC power positive supply (5 to 24 V operating); place a 0.1-µF ceramic capacitor from PVCC to PGND close to the IC."
      },
      {
        "number": "2",
        "name": "CHGEN",
        "type": "input",
        "description": "Charge enable active-low logic input; LO enables charge, HI disables charge."
      },
      {
        "number": "3",
        "name": "ACN",
        "type": "input",
        "description": "Adapter current sense resistor negative input; a 0.1-µF capacitor from ACN to ACP provides differential-mode filtering, with an optional 0.1-µF from ACN to AGND."
      },
      {
        "number": "4",
        "name": "ACP",
        "type": "input",
        "description": "Adapter current sense resistor positive input; a 0.1-µF capacitor from ACN to ACP provides differential filtering and 0.1 µF from ACP to AGND provides common-mode filtering."
      },
      {
        "number": "5",
        "name": "ACDET",
        "type": "input",
        "description": "Adapter detect voltage set input via resistor divider; adapter detected above 2.4 V, IADAPT amplifier active above 0.6 V, and charge disabled by ACOV when ACDET exceeds 3.1 V."
      },
      {
        "number": "6",
        "name": "ACSET",
        "type": "input",
        "description": "Adapter current set input; the ACSET to VREF voltage ratio programs the DPM input current regulation set-point, set by a divider from VREF or an external DAC."
      },
      {
        "number": "7",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground for low-current sensitive analog and digital signals; connect to PGND only through the PowerPad underneath the IC."
      },
      {
        "number": "8",
        "name": "VREF",
        "type": "power_out",
        "description": "3.3-V regulated voltage output for ratiometric programming and internal circuit source; place a 1-µF ceramic capacitor from VREF to AGND."
      },
      {
        "number": "9",
        "name": "VADJ",
        "type": "input",
        "description": "Charge voltage set input; the VADJ to VREF ratio programs the battery voltage regulation set-point, and connecting VADJ to REGN programs the default 4.2 V per cell."
      },
      {
        "number": "10",
        "name": "ACGOOD",
        "type": "output",
        "description": "Valid adapter active-low open-drain output, pulled low when input voltage is above the ACDET threshold; requires a 10-kΩ pullup to the supply rail."
      },
      {
        "number": "11",
        "name": "ISYNSET",
        "type": "input",
        "description": "Synchronous mode current set input; a resistor to AGND programs the charge undercurrent threshold for non-synchronous operation at low output current."
      },
      {
        "number": "12",
        "name": "IADAPT",
        "type": "output",
        "description": "Adapter current sense amplifier output equal to 20 times the ACP-ACN differential voltage; use a 100-pF or smaller decoupling capacitor to AGND."
      },
      {
        "number": "13",
        "name": "SRSET",
        "type": "input",
        "description": "Charge current set input; the SRSET to VREF ratio programs the charge current regulation set-point, set by a divider from VREF or an external DAC."
      },
      {
        "number": "14",
        "name": "BAT",
        "type": "input",
        "description": "Battery voltage remote sense; kelvin-connect to battery pack positive terminal with a 0.1-µF capacitor from BAT to AGND."
      },
      {
        "number": "15",
        "name": "SRN",
        "type": "input",
        "description": "Charge current sense resistor negative input; a 0.1-µF capacitor from SRN to SRP provides differential-mode filtering, with an optional 0.1-µF to AGND."
      },
      {
        "number": "16",
        "name": "SRP",
        "type": "input",
        "description": "Charge current sense resistor positive input; a 0.1-µF capacitor from SRN to SRP provides differential-mode filtering and 0.1 µF from SRP to AGND provides common-mode filtering."
      },
      {
        "number": "17",
        "name": "CELLS",
        "type": "input",
        "description": "Cell count selection logic input; low programs 3 cells, high programs 4 cells, floating programs 2 cells."
      },
      {
        "number": "18",
        "name": "DPMDET",
        "type": "output",
        "description": "DPM input current loop active open-drain status output; low indicates input current is limited by reducing charge current, with a 10-kΩ pullup to VREF or another rail."
      },
      {
        "number": "19",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground for the high-current converter node; connect directly to the low-side MOSFET source and to AGND only through the PowerPad."
      },
      {
        "number": "20",
        "name": "LODRV",
        "type": "output",
        "description": "PWM low-side driver output; connect to the gate of the low-side power MOSFET with a short trace."
      },
      {
        "number": "21",
        "name": "REGN",
        "type": "power_out",
        "description": "PWM low-side driver positive 6-V supply output; connect a 1-µF ceramic capacitor to PGND and a Schottky diode from REGN to BTST for bootstrap."
      },
      {
        "number": "22",
        "name": "PH",
        "type": "passive",
        "description": "PWM high-side driver negative supply; connect to the phase switching node and via a 0.1-µF bootstrap capacitor to BTST."
      },
      {
        "number": "23",
        "name": "HIDRV",
        "type": "output",
        "description": "PWM high-side driver output; connect to the gate of the high-side power MOSFET with a short trace."
      },
      {
        "number": "24",
        "name": "BTST",
        "type": "power_in",
        "description": "PWM high-side driver positive supply; connect a 0.1-µF bootstrap capacitor from BTST to PH and a Schottky diode from REGN to BTST."
      },
      {
        "number": "25",
        "name": "PowerPad",
        "type": "passive",
        "description": "Exposed pad beneath the IC; always solder to the board with vias to AGND and PGND planes, where AGND and PGND are star-connected, and serves as thermal pad."
      }
    ],
    "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's Table 1 (24-pin QFN) lists the exposed PowerPad with no pin number printed in the te; The Table 1 text for pin 3 is garbled in extraction ('ACN 3 ACN 2'). Pin 3 = ACN and pin 4 = ACP wer; Pin types for BTST, PH, and the sense/input pins are judgment calls mapping the datasheet's pin role",
          "exposed pad 25 added from the footprint"
        ],
        "pages_sent": 11,
        "cost_usd": 0.0858,
        "at": "2026-10-11T22:50:13"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/bq24705",
        "pages": 33,
        "sha256": "0b0cc2a18bec8bf4",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 25,
        "described": 25,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "bq24705rger.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4,
          4,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "096fc110543e6d324c5120c2d38e3dca87a389da9b6fac234f1fe40856295ef4",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bq24705rger-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4,
          4,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "73cae3a08f165031584c920533a3ac136c1010e36bef1aaac6221661894727ef",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "VQFN-24-EP(4x4)",
      "Category": "Power Management (PMIC)",
      "Pins": "25"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "bq24705rger"
  ],
  "discovery_pitch": "BQ24705RGER (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "bq24705rger.step",
    "bq24705rger.lbr",
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    "docs/bq24705rger-datasheet.pdf",
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    "bq24705rger-hero.overlay.json"
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  "visibility": {
    "public": true
  }
}