TAS5421QPWPRQ1

{
  "slug": "tas5421qpwprq1",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Audio Power OpAmps, HTSSOP-16-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
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    "operational amplifier-comparator",
    "tas5421qpwprq1",
    "factory-2.0.0",
    "extractor-text"
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    "tas5421qpwprq1.lbr",
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    "docs/tas5421qpwprq1-datasheet.pdf",
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    "viewers/footprint.html",
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    "tas5421qpwprq1-hero.overlay.json"
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  "component": {
    "mpn": "TAS5421QPWPRQ1",
    "manufacturer": "Texas Instruments",
    "package": "HTSSOP-16-EP",
    "pin_count": 17,
    "category": "Operational Amplifier/Comparator",
    "subcategory": "Audio Power OpAmps",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tas5421-q1",
    "parts": {
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      "lbr": "tas5421qpwprq1.lbr"
    },
    "distributor_links": {
      "lcsc": "C181230",
      "digikey": "296-38388-2-ND",
      "mouser": "595-TAS5421QPWPRQ1"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T03:58:07Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-38388-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-TAS5421QPWPRQ1",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground reference; datasheet lists pins 1, 9 and 16 as ground."
      },
      {
        "number": "2",
        "name": "STANDBY",
        "type": "input",
        "description": "Active-low STANDBY input with no internal pullup or pulldown, so an unused pin must be tied to a low-voltage rail such as 3.3 V or 5 V through a high-impedance resistor."
      },
      {
        "number": "3",
        "name": "BYP",
        "type": "passive",
        "description": "Voltage-regulator bypass pin requiring a 1 µF ±10% capacitor; the BYP pin voltage is stated as 6.4 V to 7.4 V."
      },
      {
        "number": "4",
        "name": "SDA",
        "type": "bidirectional",
        "description": "I2C data line; with a 4.7 kΩ pullup it outputs at least 2.4 V high and at most 0.4 V low at 3 mA sink, and inputs above 2.1 V and below 1.1 V are logic high and low; connect to 3.3 V if no I2C master is used."
      },
      {
        "number": "5",
        "name": "SCL",
        "type": "input",
        "description": "I2C clock input with logic-high input of 2.1 V to 5.5 V and logic-low input of at most 1.1 V, operating up to 400 kHz."
      },
      {
        "number": "6",
        "name": "IN_P",
        "type": "input",
        "description": "Non-inverting analog audio input, internally biased to 3 V common mode and AC-coupled through an external series capacitor of 1 µF."
      },
      {
        "number": "7",
        "name": "IN_N",
        "type": "input",
        "description": "Inverting analog audio input, internally biased to 3 V common mode and AC-coupled through an external series capacitor of 1 µF."
      },
      {
        "number": "8",
        "name": "MUTE",
        "type": "input",
        "description": "Active-high mute input with no internal pullup or pulldown; if unused, connect it to GND through a high-impedance resistor."
      },
      {
        "number": "9",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground reference; datasheet lists pins 1, 9 and 16 as ground."
      },
      {
        "number": "10",
        "name": "BSTN",
        "type": "passive",
        "description": "Bootstrap pin for the negative-output high-side FET, connected through a 220 nF ±20% capacitor to OUTN."
      },
      {
        "number": "11",
        "name": "OUTN",
        "type": "power_out",
        "description": "Negative BTL amplifier output, filtered with an LC low-pass filter; peak output current is limited to 3.5 A by overcurrent shutdown."
      },
      {
        "number": "12",
        "name": "OUTP",
        "type": "power_out",
        "description": "Positive BTL amplifier output, filtered with an LC low-pass filter; peak output current is limited to 3.5 A by overcurrent shutdown."
      },
      {
        "number": "13",
        "name": "BSTP",
        "type": "passive",
        "description": "Bootstrap pin for the positive-output high-side FET, connected through a 220 nF ±20% capacitor to OUTP."
      },
      {
        "number": "14",
        "name": "FAULT",
        "type": "output",
        "description": "Active-low open-drain fault output that reports faults; it reads at most 0.5 V low with a 47 kΩ pullup to 3.3 V and has a maximum sink current of 7 mA."
      },
      {
        "number": "15",
        "name": "PVDD",
        "type": "power_in",
        "description": "Power supply input with a recommended operating range of 4.5 V to 18 V for a 4 Ω load and an absolute maximum DC rating of 30 V relative to GND."
      },
      {
        "number": "16",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground reference; datasheet lists pins 1, 9 and 16 as ground."
      },
      {
        "number": "17",
        "name": "Thermal Pad",
        "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: The exposed thermal pad is listed in the pin table as '—' with no pin number. It must be soldered to; Type classification is a judgment call: the datasheet labels BYP as 'PBY' (power bypass), and BSTN/B; Table 'Recommended Operating Conditions' values for SCL/SDA/STANDBY input levels were extracted from",
          "exposed pad 17 added from the footprint"
        ],
        "pages_sent": 13,
        "cost_usd": 0.0827,
        "at": "2026-10-08T03:57:41"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tas5421-q1",
        "pages": 32,
        "sha256": "98d5a60a363b9539",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 17,
        "described": 17,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
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}