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Contents

README

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ACS711KLCTR-25AB-T

Allegro MicroSystems LLC · Current Sensors · SOIC-8

ACS711KLCTR-25AB-T from Allegro MicroSystems LLC, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 IP+ passive Primary current input terminal. Terminals for the current being sensed; fused internally with pin 2. The IP+ and IP− pairs form the isolated copper conduction path with ~1.2 mΩ resistance in the LC package.
2 IP+ passive Primary current input terminal. Terminals for the current being sensed; fused internally with pin 1.
3 IP- passive Primary current output terminal. Terminals for the current being sensed; fused internally with pin 4.
4 IP- passive Primary current output terminal. Terminals for the current being sensed; fused internally with pin 3.
5 GND power_in Signal ground terminal. Low-side reference for VCC, VIOUT, and FAULT.
6 FAULT output Overcurrent fault output; active-low, open-drain style requiring an external pull-up (RPU ≥ 1 kΩ). Latches low when
7 VIOUT output Analog output signal. Ratiometric to VCC with quiescent output VCC/2 at IP = 0 A; sensitivity 55 mV/A for the x25AB variant. Bandwidth 100 kHz; drives loads ≥15 kΩ and ≤1 nF.
8 VCC power_in Device power supply terminal. 3 to 5.5 V single supply (3.3 V nominal for factory-trimmed accuracy); ICC ≈ 4 mA typical. Bypass with 0.1 μF to GND. Absolute max 7 V.

Key specifications

Parameter Value
Manufacturer Allegro MicroSystems LLC
Package SOIC-8
Category Sensor
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • ACS711KLCTR-25AB-T
  • ACS711ELCTR-25AB-T
  • ACS711KLCTR-12AB-T
  • ACS711ELCTR-12AB-T
  • ACS711KEXLT-15AB-T
  • ACS711EEXLT-15AB-T
  • ACS711KEXLT-31AB-T
  • ACS711EEXLT-31AB-T

CAD (KiCad official)

  • Symbol: ACS711KLCTR-25AB-T
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: acs711klctr-25ab-t-etched.step / acs711klctr-25ab-t-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); acs711klctr-25ab-t.step / acs711klctr-25ab-t.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Allegro MicroSystems LLC datasheet (18 pp, sha256 6fb6310c420b9503, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF