BQ2954SNTR

{
  "slug": "bq2954sntr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Battery Management ICs, SOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power supply chip",
    "bq2954sntr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "bq2954sntr.kicad_sym",
    "bq2954sntr.kicad_mod",
    "bq2954sntr.glb",
    "bq2954sntr.step",
    "bq2954sntr.lbr",
    "docs/hero.png",
    "docs/bq2954sntr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "bq2954sntr-hero.glb",
    "bq2954sntr-hero.overlay.json",
    "bq2954sntr-etched.glb"
  ],
  "component": {
    "mpn": "BQ2954SNTR",
    "manufacturer": "Texas Instruments",
    "package": "SOP-16",
    "pin_count": 16,
    "category": "Power Supply Chip",
    "subcategory": "Battery Management ICs",
    "datasheet": "https://www.ti.com/cn/lit/gpn/bq2954",
    "parts": {
      "symbol": "bq2954sntr.kicad_sym",
      "footprint": "bq2954sntr.kicad_mod",
      "model_3d": "bq2954sntr-hero.glb",
      "model_3d_plain": "bq2954sntr-etched.glb",
      "model_3d_step": "bq2954sntr-etched.step",
      "model_3d_step_plain": "bq2954sntr.step",
      "lbr": "bq2954sntr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2866594",
      "digikey": "296-37329-2-ND",
      "mouser": "595-BQ2954SNTR"
    },
    "distributor_check": {
      "checked_at": "2026-10-31T00:27:18Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-37329-2-ND",
        "status": "found",
        "lifecycle": "Last Time Buy"
      },
      "mouser": {
        "pn": "595-BQ2954SNTR",
        "status": "found",
        "lifecycle": "End of Life"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "TM",
        "type": "input",
        "description": "Time-out programming input that sets the maximum charge time (1 to 24 hours) through an external R-C network, with a recommended C of 0.1 µF."
      },
      {
        "number": "2",
        "name": "CHG",
        "type": "output",
        "description": "Open-drain charge-active output that is driven low when the battery is removed, during a temperature hold, on a fault, or when charge is done, and sinks at least 5 mA with VOL ≤ VSS + 0.8 V."
      },
      {
        "number": "3",
        "name": "BAT",
        "type": "input",
        "description": "Battery voltage sense input, derived from a high-impedance divider across the battery terminals (RB1 + RB2 typically 150 kΩ to 1 MΩ) and rated for 0 to VCC."
      },
      {
        "number": "4",
        "name": "VCOMP",
        "type": "input",
        "description": "Voltage loop compensation input that connects to an external R-C network to stabilize the regulated voltage."
      },
      {
        "number": "5",
        "name": "ICOMP",
        "type": "input",
        "description": "Current loop compensation input that connects to an external R-C network to stabilize the regulated charge current."
      },
      {
        "number": "6",
        "name": "ITERM",
        "type": "input",
        "description": "Three-state input that selects the IFULL and IMIN fast-charge termination thresholds according to Table 4."
      },
      {
        "number": "7",
        "name": "SNS",
        "type": "input",
        "description": "Charging current sense input that reads the battery current as the voltage developed across an external sense resistor, with VSNS = 0.250 V at IMAX."
      },
      {
        "number": "8",
        "name": "TS",
        "type": "input",
        "description": "Temperature sense input measured differentially against BAT-, using an external resistor-divider and NTC network to set the low and high temperature thresholds."
      },
      {
        "number": "9",
        "name": "TPWM",
        "type": "input",
        "description": "Regulation timebase input that uses an external timing capacitor to VSS to set the PWM frequency, typically 100 kHz to 200 kHz."
      },
      {
        "number": "10",
        "name": "BTST",
        "type": "output",
        "description": "Battery test output that is driven high when no battery is present to provide a potential at the battery terminal, and sources at least 10 mA at VOH ≥ VCC − 0.8 V."
      },
      {
        "number": "11",
        "name": "LCOM",
        "type": "output",
        "description": "Common output for LED1 and LED2 that is high-impedance during initialization so DSEL and CSEL can be read, and sinks at least 30 mA with VOL ≤ VSS + 0.5 V."
      },
      {
        "number": "12",
        "name": "VSS",
        "type": "power_in",
        "description": "System ground; all voltages on the device are specified relative to VSS."
      },
      {
        "number": "13",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply input at 5.0 V ±10% (4.5 V to 5.5 V recommended operating range, absolute maximum 7.0 V)."
      },
      {
        "number": "14",
        "name": "MOD",
        "type": "output",
        "description": "Pulse-width modulated push-pull current-switching control output that enables charge current when high, with a maximum duty cycle of 80%."
      },
      {
        "number": "15",
        "name": "LED1/CSEL",
        "type": "bidirectional",
        "description": "Charger display status 1 output that also serves as the CSEL input, latched at VCC rise, to select low-side or high-side current sensing."
      },
      {
        "number": "16",
        "name": "LED2/DSEL",
        "type": "bidirectional",
        "description": "Charger display status 2 output that also serves as the three-level DSEL input, latched at VCC rise, to select the LED display mode."
      }
    ],
    "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: Pin numbers were taken from the 16-pin pin-connection diagram (page 1) and confirmed against the pin; The datasheet describes LED1/CSEL and LED2/DSEL as bidirectional pins with a programming (input) fun"
        ],
        "pages_sent": 26,
        "cost_usd": 0.092,
        "at": "2026-10-31T00:27:05"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/bq2954",
        "pages": 26,
        "sha256": "527e2db91cecb526",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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      "footprint": "viewers/footprint.html"
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        "role": "plain",
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        "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": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bq2954sntr-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": -0.0,
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        "sha256": "dd0509fd68acb2325f6504dcc9274e4c4e83f3b3fe2ca715d2371ec3406a726f",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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    ],
    "package_dims": {
      "package_code": "D",
      "E1": {
        "nom_mm": 3.9,
        "range_mm": null
      },
      "E": {
        "nom_mm": 6.0,
        "range_mm": null
      },
      "e": {
        "nom_mm": 1.27,
        "range_mm": null
      },
      "source": "TI package designator D (no drawing in the datasheet)",
      "model_check": {
        "file": "bq2954sntr.step",
        "verdict": "SKIP",
        "reasons": [
          "the datasheet dimensions give no height or body size to compare"
        ],
        "by": "factory/package_fit.py"
      }
    }
  }
}