ACS725LLCTR-20AB-T

{
  "schema_version": 1,
  "type": "component",
  "slug": "acs725llctr-20ab-t",
  "title": "ACS725LLCTR-20AB-T",
  "brief": "Allegro MicroSystems LLC Current Sensors, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "sensor",
    "acs725llctr-20ab-t"
  ],
  "component": {
    "mpn": "ACS725LLCTR-20AB-T",
    "manufacturer": "Allegro MicroSystems LLC",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Sensor",
    "subcategory": "Current Sensors",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/7b53fbc820ba1e0027fc317be68669c1.pdf",
    "parts": {
      "symbol": "acs725llctr-20ab-t.kicad_sym",
      "footprint": "acs725llctr-20ab-t.kicad_mod",
      "model_3d": "acs725llctr-20ab-t-etched.glb",
      "model_3d_plain": "acs725llctr-20ab-t.glb",
      "model_3d_step": "acs725llctr-20ab-t-etched.step",
      "model_3d_step_plain": "acs725llctr-20ab-t.step",
      "lbr": "acs725llctr-20ab-t.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "IP+",
        "type": "passive",
        "description": "Primary current input terminal (positive side of the sensed current path). Pins 1 and 2 are tied together internally to the copper conduction path (1.2 mΩ typical) that carries the primary current being sensed. Fused internally."
      },
      {
        "number": "2",
        "name": "IP+",
        "type": "passive",
        "description": "Primary current input terminal (positive side of the sensed current path). Pins 1 and 2 are tied together internally to the copper conduction path (1.2 mΩ typical). Fused internally."
      },
      {
        "number": "3",
        "name": "IP-",
        "type": "passive",
        "description": "Primary current return terminal (negative side of the sensed current path). Pins 3 and 4 are tied together internally to the copper conduction path (1.2 mΩ typical). Fused internally."
      },
      {
        "number": "4",
        "name": "IP-",
        "type": "passive",
        "description": "Primary current return terminal (negative side of the sensed current path). Pins 3 and 4 are tied together internally to the copper conduction path (1.2 mΩ typical). Fused internally."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Signal ground terminal. Reference for VCC, VIOUT, and the FILTER capacitor."
      },
      {
        "number": "6",
        "name": "FILTER",
        "type": "passive",
        "description": "Terminal for an external capacitor (C_F) that sets the output bandwidth. Forms an internal RC low-pass filter with R_F(int) = 1.8 kΩ typical; a 1 nF cap is used for the default 120 kHz bandwidth, larger caps reduce bandwidth for better noise performance."
      },
      {
        "number": "7",
        "name": "VIOUT",
        "type": "output",
        "description": "Analog output voltage proportional to the sensed primary current I_P. Ratiometric to VCC with a quiescent output at VCC/2 and 66 mV/A sensitivity (typ) for the -20AB variant (±20 A range). Drives a resistive load ≥4.7 kΩ and capacitive load ≤10 nF."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Device power supply terminal. 3.3 V single-supply operation (3.0 V min, 3.6 V max); I_CC = 10 mA typ, 14 mA max. Bypass with 0.1 µF C_BYPASS to GND."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/7b53fbc820ba1e0027fc317be68669c1.pdf",
        "pages": 24,
        "sha256": "2c79a87c5a09ef07",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "acs725llctr-20ab-t.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "acs725llctr-20ab-t-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,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "aeef5c4aeecf819afba0da1155ba5bb42377139dd20babea8c4efc4373749358",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Allegro MicroSystems LLC",
      "Package": "SOP-8",
      "Category": "Sensor",
      "Pins": "8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "acs725llctr-20ab-t"
  ],
  "discovery_pitch": "ACS725LLCTR-20AB-T (Allegro MicroSystems LLC) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "acs725llctr-20ab-t.kicad_sym",
    "acs725llctr-20ab-t.kicad_mod",
    "acs725llctr-20ab-t.glb",
    "acs725llctr-20ab-t.step",
    "acs725llctr-20ab-t.lbr",
    "docs/hero.png",
    "docs/acs725llctr-20ab-t-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "acs725llctr-20ab-t-etched.step"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T15:32:07.132Z"
}