DRV425RTJR

{
  "slug": "drv425rtjr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Linear Hall Sensors, QFN-20-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "magnetic sensors",
    "drv425rtjr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "drv425rtjr.kicad_sym",
    "drv425rtjr.kicad_mod",
    "drv425rtjr.glb",
    "drv425rtjr.step",
    "drv425rtjr.lbr",
    "docs/hero.png",
    "docs/drv425rtjr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "component": {
    "mpn": "DRV425RTJR",
    "manufacturer": "Texas Instruments",
    "package": "QFN-20-EP(4x4)",
    "pin_count": 21,
    "category": "Magnetic Sensors",
    "subcategory": "Linear Hall Sensors",
    "datasheet": "https://www.ti.com/cn/lit/gpn/drv425",
    "parts": {
      "symbol": "drv425rtjr.kicad_sym",
      "footprint": "drv425rtjr.kicad_mod",
      "model_3d": "drv425rtjr-etched.glb",
      "model_3d_plain": "drv425rtjr.glb",
      "model_3d_step": "drv425rtjr-etched.step",
      "model_3d_step_plain": "drv425rtjr.step",
      "lbr": "drv425rtjr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2153001"
    },
    "pins": [
      {
        "number": "1",
        "name": "BSEL",
        "type": "input",
        "description": "Bandwidth selection input; selects 32 kHz when low or 47 kHz when high with 22Ω external shunt resistance."
      },
      {
        "number": "2",
        "name": "RSEL1",
        "type": "input",
        "description": "Reference voltage mode selection input bit 1; used with RSEL0 to select REFOUT of 2.5V (00), 1.65V (01), or VDD/2 (1x)."
      },
      {
        "number": "3",
        "name": "RSEL0",
        "type": "input",
        "description": "Reference voltage mode selection input bit 0; used with RSEL1 to select REFOUT of 2.5V (00), 1.65V (01), or VDD/2 (1x)."
      },
      {
        "number": "4",
        "name": "REFOUT",
        "type": "output",
        "description": "Precision voltage reference output providing 2.5V ±2% maximum accuracy or 1.65V ±2% or VDD/2 with ±50ppm/°C temperature drift."
      },
      {
        "number": "5",
        "name": "REFIN",
        "type": "input",
        "description": "Common-mode reference input of shunt sense amplifier; accepts input voltage range from GND to VDD with 40kΩ to 60kΩ input impedance."
      },
      {
        "number": "6",
        "name": "VOUT",
        "type": "output",
        "description": "Shunt sense amplifier output with 4V/V gain centered at REFIN voltage and responsive to detected magnetic field proportional to external shunt resistor voltage."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin; must be connected to ground plane for proper device operation and thermal dissipation."
      },
      {
        "number": "8",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply pin for 3.0V to 5.5V operation; must be bypassed with 1µF ceramic capacitor placed close to the device."
      },
      {
        "number": "9",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply pin for 3.0V to 5.5V operation; must be bypassed with 1µF ceramic capacitor placed close to the device."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin; must be connected to ground plane for proper device operation and thermal dissipation."
      },
      {
        "number": "11",
        "name": "DRV2",
        "type": "output",
        "description": "Compensation coil driver output 2; differential drive capable of ±250mA at 5V or ±150mA at 3.3V with common-mode voltage set by RSEL pins."
      },
      {
        "number": "12",
        "name": "DRV1",
        "type": "output",
        "description": "Compensation coil driver output 1; differential drive capable of ±250mA at 5V or ±150mA at 3.3V with common-mode voltage set by RSEL pins."
      },
      {
        "number": "13",
        "name": "AINP",
        "type": "input",
        "description": "Non-inverting input of shunt sense amplifier; connected to positive terminal of external shunt resistor with 20kΩ differential input impedance."
      },
      {
        "number": "14",
        "name": "AINN",
        "type": "input",
        "description": "Inverting input of shunt sense amplifier; connected to negative terminal of external shunt resistor with 20kΩ differential input impedance."
      },
      {
        "number": "15",
        "name": "OR",
        "type": "output",
        "description": "Out-of-range indicator; open-drain active-low output asserted when shunt sense amplifier output exceeds 48mV to 100mV from supply rails with 2.5µs to 3.5µs response delay."
      },
      {
        "number": "16",
        "name": "COMP1",
        "type": "input",
        "description": "Internal compensation coil feedback input 1; provides feedback signal for closed-loop magnetic field compensation circuit."
      },
      {
        "number": "17",
        "name": "COMP2",
        "type": "input",
        "description": "Internal compensation coil feedback input 2; provides feedback signal for closed-loop magnetic field compensation circuit."
      },
      {
        "number": "18",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin; must be connected to ground plane for proper device operation and thermal dissipation."
      },
      {
        "number": "19",
        "name": "ERROR",
        "type": "output",
        "description": "Error flag; open-drain active-low output asserted when fluxgate sensor saturates with internal magnetic field exceeding ±1.6mT, with 4µs to 6µs suppression delay."
      },
      {
        "number": "20",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin; must be connected to ground plane for proper device operation and thermal dissipation."
      },
      {
        "number": "21",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Thermal pad not assigned a pin number in datasheet; shown as exposed pad on package bottom (referenc",
          "exposed pad 21 added from the footprint"
        ],
        "pages_sent": 40,
        "cost_usd": 0.4804,
        "at": "2026-09-24T08:57:59"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/drv425",
        "pages": 40,
        "sha256": "bd09889dc24e60d9",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 21,
        "described": 21,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "drv425rtjr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          4.0,
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        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c9476a1612023de37f27b4972110ab6ac6dc0eaf5ac48957a2e1c497650082a5",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "drv425rtjr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "sha256": "234e2ebc1494215349d240790821ae9df1348fbda9277f4f2717070b549752d5",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}