ACS711ELCTR-12AB-T

@@ -0,0 +1,54 @@+# ACS711ELCTR-12AB-T++**Allegro MicroSystems LLC** · Current Sensors · SOP-8++ACS711ELCTR-12AB-T from Allegro MicroSystems LLC, in a SOP-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 | Terminal for current being sensed (positive side of the internal copper conduction path). Pins 1 and 2 are fused internally and must be tied together on the PCB. Working voltage between the IP+/IP- side and IC side is rated to 100 VAC peak or VDC (basic isolation). |+| 2 | IP+ | passive | Terminal for current being sensed (positive side of the internal copper conduction path). Fused internally with pin 1; tie both externally to carry the primary current. |+| 3 | IP- | passive | Terminal for current being sensed (negative/return side of the internal copper conduction path). Fused internally with pin 4; tie both externally. Primary conductor resistance is ~1.2 mΩ for the LC package. |+| 4 | IP- | passive | Terminal for current being sensed (negative/return side of the internal copper conduction path). Fused internally with pin 3; tie both externally. |+| 5 | GND | power_in | Signal ground terminal for the IC (isolated from the IP+/IP- current path). |+| 6 | FAULT | output | Overcurrent fault output, active low, open-drain style requiring an external pull-up (RPU ≥ 1 kΩ, typ. to VCC). Trips and latches when |IP| exceeds ±100% of the full-scale range (±12.5 A for the 12AB variant); response time ~1.3 µs. Cleared only by cycling VCC below VCCFR (200 mV max) for at least tCCFR (100 µs). |+| 7 | VIOUT | output | Analog output voltage, ratiometric to VCC, with positive slope proportional to current flowing from IP+ to IP-. Quiescent output is VCC/2 at IP=0 A; sensitivity is 110 mV/A (typ) for the 12AB variant. Drives up to CLOAD=1 nF with RLOAD ≥ 15 kΩ. |+| 8 | VCC | power_in | Device power supply terminal. Operates from 3 to 5.5 V single supply (3.3 V nominal); ICC ~4 mA typ, 5.5 mA max. Bypass with 0.1 µF (CBYP) to GND close to the pin. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Allegro MicroSystems LLC |+| Package | SOP-8 |+| Category | Sensor |+| Pins | 8 |++## Ordering variants++- `ACS711ELCTR-12AB-TELCTR-12AB-T`+- `ACS711ELCTR-12AB-TKLCTR-12AB-T`+- `ACS711ELCTR-12AB-TELCTR-25AB-T`+- `ACS711ELCTR-12AB-TKLCTR-25AB-T`+- `ACS711ELCTR-12AB-TEEXLT-31AB-T`+- `ACS711ELCTR-12AB-TKEXLT-31AB-T`+- `ACS711ELCTR-12AB-TEEXLT-15AB-T`+- `ACS711ELCTR-12AB-TKEXLT-15AB-T`++## CAD (KiCad official)++- Symbol: `ACS711ELCTR-12AB-T`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Allegro MicroSystems LLC datasheet](docs/acs711elctr-12ab-t-datasheet.pdf) (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](docs/acs711elctr-12ab-t-datasheet.pdf)

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