BQ24703PWR

{
  "slug": "bq24703pwr",
  "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)",
    "bq24703pwr",
    "factory-2.0.0",
    "extractor-text"
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  "dependencies": {},
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  "component": {
    "mpn": "BQ24703PWR",
    "manufacturer": "Texas Instruments",
    "package": "TSSOP-24",
    "pin_count": 24,
    "category": "Power Management (PMIC)",
    "subcategory": "Battery Management",
    "datasheet": "https://www.ti.com/lit/ds/symlink/bq24703.pdf",
    "parts": {
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      "lbr": "bq24703pwr.lbr"
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    "distributor_links": {
      "lcsc": "C2871694",
      "digikey": "296-37327-2-ND",
      "mouser": "595-BQ24703PWR"
    },
    "distributor_check": {
      "checked_at": "2026-11-06T00:04:38Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-37327-2-ND",
        "status": "found"
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    },
    "pins": [
      {
        "number": "1",
        "name": "ACDET",
        "type": "input",
        "description": "AC or adapter power detection input; when its voltage is below VACPRES the device enters sleep mode with PWM control disabled."
      },
      {
        "number": "2",
        "name": "ACPRES",
        "type": "output",
        "description": "Open-drain AC power indicator output that is high when the ACDET voltage is greater than VACPRES."
      },
      {
        "number": "3",
        "name": "ACSEL",
        "type": "input",
        "description": "AC adapter power select input; a logic high selects ac power and a logic low selects the battery."
      },
      {
        "number": "4",
        "name": "BATDEP",
        "type": "input",
        "description": "Depleted battery level input; battery depletion is detected when BATDEP is less than VACPRES."
      },
      {
        "number": "5",
        "name": "SRSET",
        "type": "input",
        "description": "Battery charge current programming voltage input that sets the battery charge current limit."
      },
      {
        "number": "6",
        "name": "ACSET",
        "type": "input",
        "description": "Adapter current programming voltage input that sets the system current level at which dynamic power management occurs."
      },
      {
        "number": "7",
        "name": "VREF",
        "type": "power_in",
        "description": "Bypassed precision 5-V voltage reference output with a tight tolerance suitable for charging lithium-ion batteries."
      },
      {
        "number": "8",
        "name": "ENABLE",
        "type": "input",
        "description": "Charge enable input; a high allows PWM control operation to enable charging while a low forces the PWM output high."
      },
      {
        "number": "9",
        "name": "BATSET",
        "type": "input",
        "description": "External override to the internal precision reference; when used it must be greater than 1.0 V, and grounding it selects the internal reference."
      },
      {
        "number": "10",
        "name": "COMP",
        "type": "output",
        "description": "Inverting input to the PWM comparator and output of the gm amplifiers, with a type II compensation network to GND recommended."
      },
      {
        "number": "11",
        "name": "ACN",
        "type": "input",
        "description": "Negative differential input for the ac-to-dc adapter current sense resistor."
      },
      {
        "number": "12",
        "name": "ACP",
        "type": "input",
        "description": "Positive differential input for the ac-to-dc adapter current sense resistor."
      },
      {
        "number": "13",
        "name": "BATP",
        "type": "input",
        "description": "Battery charge regulation voltage measurement input to the battery-voltage gm amplifier, regulated to the VFB reference."
      },
      {
        "number": "14",
        "name": "IBAT",
        "type": "output",
        "description": "Battery current differential amplifier output producing a voltage proportional to battery charge current, suitable for an ADC input."
      },
      {
        "number": "15",
        "name": "SRN",
        "type": "input",
        "description": "Negative differential battery current sense amplifier input, tied to the battery terminal."
      },
      {
        "number": "16",
        "name": "SRP",
        "type": "bidirectional",
        "description": "Positive differential battery current sense amplifier input that serves as the source pin for zero volt operation."
      },
      {
        "number": "17",
        "name": "GND",
        "type": "power_in",
        "description": "Supply return and ground reference."
      },
      {
        "number": "18",
        "name": "VS",
        "type": "power_in",
        "description": "System (load) voltage input that disables the BATDRV P-channel MOSFET if VS exceeds BATP; grounding VS disables this function."
      },
      {
        "number": "19",
        "name": "ALARM",
        "type": "output",
        "description": "Open-drain depleted battery alarm output that goes high when the BATDEP voltage is below VACPRES."
      },
      {
        "number": "20",
        "name": "VHSP",
        "type": "output",
        "description": "Voltage source for driving the gates of the external MOSFETs, bypassed with a 1-µF capacitor close to the pin."
      },
      {
        "number": "21",
        "name": "PWM",
        "type": "output",
        "description": "Gate drive output for the external P-channel PWM MOSFET, active when ACPRES, ACSEL and ENABLE are high."
      },
      {
        "number": "22",
        "name": "VCC",
        "type": "power_in",
        "description": "Operational supply voltage."
      },
      {
        "number": "23",
        "name": "BATDRV",
        "type": "output",
        "description": "Battery power source select output driving an external P-channel MOSFET, driven low to GND when ACDET is less than VACPRES."
      },
      {
        "number": "24",
        "name": "ACDRV",
        "type": "output",
        "description": "AC or adapter power source select output driving an external P-channel MOSFET, driven low to VHSP when ACSEL is high and ACDET is greater than VACPRES."
      }
    ],
    "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: Table 1 labels the PW (TSSOP-24) pin numbers under the bq24702 column; the datasheet does not separa"
        ],
        "pages_sent": 8,
        "cost_usd": 0.0237,
        "at": "2026-11-06T00:04:29"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/bq24703.pdf",
        "pages": 40,
        "sha256": "c7cccca725cc39ed",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 24,
        "described": 24,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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}