BQ24753ARHDR

{
  "slug": "bq24753arhdr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Battery Management, VQFN-28(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "bq24753arhdr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
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    "bq24753arhdr.kicad_mod",
    "bq24753arhdr.glb",
    "bq24753arhdr.step",
    "bq24753arhdr.lbr",
    "docs/hero.png",
    "docs/bq24753arhdr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "bq24753arhdr-hero.glb",
    "bq24753arhdr-hero.overlay.json"
  ],
  "component": {
    "mpn": "BQ24753ARHDR",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-28(5x5)",
    "pin_count": 29,
    "category": "Power Management (PMIC)",
    "subcategory": "Battery Management",
    "datasheet": "https://www.ti.com/cn/lit/gpn/bq24753a",
    "parts": {
      "symbol": "bq24753arhdr.kicad_sym",
      "footprint": "bq24753arhdr.kicad_mod",
      "model_3d": "bq24753arhdr-hero.glb",
      "model_3d_plain": "bq24753arhdr.glb",
      "model_3d_step": "bq24753arhdr-etched.step",
      "model_3d_step_plain": "bq24753arhdr.step",
      "lbr": "bq24753arhdr.lbr"
    },
    "distributor_links": {
      "lcsc": "C3682508",
      "digikey": "BQ24753ARHDR-ND",
      "mouser": "595-BQ24753ARHDR"
    },
    "distributor_check": {
      "checked_at": "2026-10-10T21:36:58Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "BQ24753ARHDR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-BQ24753ARHDR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CHGEN",
        "type": "input",
        "description": "Active-low charge enable logic input: low enables charging and high disables it, with input thresholds of 0.8 V (low) and 2.1 V (high)."
      },
      {
        "number": "2",
        "name": "ACN",
        "type": "input",
        "description": "Adapter current sense resistor negative input, with a 0.1-μF differential filter capacitor to ACP and an optional 0.1-μF common-mode capacitor to AGND; ACP-ACN is limited to ±0.3 V."
      },
      {
        "number": "3",
        "name": "ACP",
        "type": "input",
        "description": "Adapter current sense resistor positive input, with a 0.1-μF differential filter capacitor to ACN and a 0.1-μF common-mode capacitor to AGND; the input common-mode range is 0 to 24 V."
      },
      {
        "number": "4",
        "name": "ACDRV",
        "type": "output",
        "description": "Gate driver output for the AC adapter-to-system P-channel ACFET (and reverse-blocking FET), which latches off when ACOP exceeds 2 V."
      },
      {
        "number": "5",
        "name": "ACDET",
        "type": "input",
        "description": "Adapter-detect threshold input set by a resistor divider to AGND; adapter is detected when ACDET exceeds 2.4 V rising (40 mV falling hysteresis), and the IADAPT amplifier is active above 0.6 V."
      },
      {
        "number": "6",
        "name": "ACSET",
        "type": "input",
        "description": "Adapter current set input whose ratio to VDAC programs the input current regulation set-point during DPM, with an ACSET voltage range of 0 to VDAC."
      },
      {
        "number": "7",
        "name": "ACOP",
        "type": "input",
        "description": "Input overpower time-constant input with a ceramic capacitor to AGND; the ACDRV latches off when ACOP exceeds 2 V, and the latch is reset by toggling ACDET or PVCC UVLO."
      },
      {
        "number": "8",
        "name": "OVPSET",
        "type": "input",
        "description": "Input overvoltage protection threshold set input via a resistor divider to AGND; charge is disabled and ACDRV is turned off when OVPSET exceeds 3.1 V (non-latching)."
      },
      {
        "number": "9",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground for low-current sensitive analog and digital signals, connected to PGND only through the thermal pad."
      },
      {
        "number": "10",
        "name": "VREF",
        "type": "power_in",
        "description": "3.3-V regulated reference output requiring a 1-μF ceramic capacitor to AGND, with a 0 to 30 mA regulation range; do not apply an external voltage to this pin."
      },
      {
        "number": "11",
        "name": "VDAC",
        "type": "input",
        "description": "Reference input for ratiometric programming, operating from 2.6 V to 3.6 V, to which VREF or an external DAC supply is connected."
      },
      {
        "number": "12",
        "name": "VADJ",
        "type": "input",
        "description": "Charge voltage set input whose ratio to VDAC sets the battery regulation point, with a VADJ range of 0 to REGN; connecting VADJ to REGN gives the default of 4.2 V per cell."
      },
      {
        "number": "13",
        "name": "ACGOOD",
        "type": "output",
        "description": "Active-low, open-drain adapter-present output that is pulled low when the input exceeds the programmed ACDET threshold, typically pulled up with 10 kΩ to VREF; the output low voltage is 0.5 V maximum at 5 mA sink."
      },
      {
        "number": "14",
        "name": "BATDRV",
        "type": "output",
        "description": "Gate driver output for the battery-to-system P-channel BATFET, with its source at the system node and drain at the battery; the drive is 6.5 V typical relative to ACN."
      },
      {
        "number": "15",
        "name": "IADAPT",
        "type": "output",
        "description": "Adapter current sense amplifier output at 20 V/V gain of the ACP-ACN differential voltage, with an output range of 0 to 2 V and a maximum load capacitance of 100 pF."
      },
      {
        "number": "16",
        "name": "SRSET",
        "type": "input",
        "description": "Charge current set input whose ratio to VDAC programs the charge current regulation set-point, with an SRSET voltage range of 0 to VDAC."
      },
      {
        "number": "17",
        "name": "BAT",
        "type": "power_in",
        "description": "Battery voltage remote sense input, connected by a Kelvin trace to the battery positive terminal with a 0.1-μF capacitor to AGND; the BAT regulation range is 8 to 18.048 V across 2 to 4 cells."
      },
      {
        "number": "18",
        "name": "SRN",
        "type": "input",
        "description": "Charge current sense resistor negative input, with a 0.1-μF differential capacitor to SRP and an optional 0.1-μF common-mode capacitor to AGND; SRP-SRN is limited to ±0.3 V."
      },
      {
        "number": "19",
        "name": "SRP",
        "type": "input",
        "description": "Charge current sense resistor positive input, with a 0.1-μF differential capacitor to SRN and a 0.1-μF common-mode capacitor to AGND; the charge current regulation differential range is 0 to 100 mV."
      },
      {
        "number": "20",
        "name": "CELLS",
        "type": "input",
        "description": "Cell-count selection input: logic low programs 3 cells, logic high programs 4 cells, and floating programs 2 cells."
      },
      {
        "number": "21",
        "name": "LEARN",
        "type": "input",
        "description": "Learn mode logic input with a 5.5 V maximum rating; when high with an adapter present, charging is disabled, ACDRV is off and BATDRV is on, and the system selector switches to the adapter if the battery falls below 3 V."
      },
      {
        "number": "22",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground for the high-current converter node, connected directly to the low-side MOSFET source and the input and output capacitor grounds, and connected to AGND only through the thermal pad."
      },
      {
        "number": "23",
        "name": "LODRV",
        "type": "output",
        "description": "PWM low-side gate driver output with a 6-V REGN-referenced drive, connected to the low-side power MOSFET gate by a short trace."
      },
      {
        "number": "24",
        "name": "REGN",
        "type": "output",
        "description": "PWM low-side driver 6-V supply output requiring a 1-μF ceramic capacitor to PGND and a Schottky diode to BTST; REGN is disabled when CHGEN is high, with a regulated voltage of 5.6 to 6.2 V."
      },
      {
        "number": "25",
        "name": "PH",
        "type": "power_in",
        "description": "PWM high-side driver negative supply connected to the phase switching node, with a 0.1-μF bootstrap capacitor from PH to BTST; the PH range is -1 to 24 V."
      },
      {
        "number": "26",
        "name": "HIDRV",
        "type": "output",
        "description": "PWM high-side driver output connected to the high-side power MOSFET gate by a short trace, with BTST-PH limited to 30 V."
      },
      {
        "number": "27",
        "name": "BTST",
        "type": "power_in",
        "description": "PWM high-side driver positive bootstrap supply, with a 0.1-μF bootstrap capacitor to PH and a Schottky diode from REGN; BTST and HIDRV are rated 36 V maximum to AGND and PGND."
      },
      {
        "number": "28",
        "name": "PVCC",
        "type": "power_in",
        "description": "IC power supply input connected to the diode-OR common-source node of the ACFET and reverse-blocking FET, with an operating range of 8 to 24 V and a 0.1-μF capacitor to PGND."
      },
      {
        "number": "29",
        "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-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Thermal pad (exposed pad beneath the IC) is not a numbered pin and is not in the 28-pin list; it is ; The pin-function table gives no I/O direction ('–') for these pins; types were assigned as power_in ; Pin types for ACN, ACP, SRN, SRP are given as I in the datasheet, but these are differential sense i",
          "exposed pad 29 added from the footprint"
        ],
        "pages_sent": 13,
        "cost_usd": 0.1053,
        "at": "2026-10-10T21:36:40"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/bq24753a",
        "pages": 46,
        "sha256": "064e1b55737c8832",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 29,
        "described": 29,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
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        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "e9d6d740f505b03e5aa0ac826330f9e269344b84656d051f50eb07ac162749eb",
        "checked": "2026-10-10",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bq24753arhdr-etched.step",
        "role": "eda",
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        "origin": "footprint origin = pad-pattern centre",
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        "sha256": "d5dbe2296463c9d8b57f4ac40b03748ce31eb141455657838e9ecc47fec3e226",
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  }
}