ACS711KLCTR-12AB-T

@@ -0,0 +1,54 @@+# ACS711KLCTR-12AB-T++**Allegro MicroSystems LLC** · Current Sensors · SOP-8++ACS711KLCTR-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 | Primary current sense terminal (positive). Pins 1 and 2 are internally fused and form one side of the ~1.2 mΩ internal current-sensing conductor. Rated for 100 VAC/VDC working isolation to pins 5-8. |+| 2 | IP+ | passive | Primary current sense terminal (positive). Tied internally to pin 1; both must be connected in parallel to carry the primary current. |+| 3 | IP- | passive | Primary current sense terminal (negative/return). Pins 3 and 4 are internally fused and form the return side of the internal ~1.2 mΩ conduction path. |+| 4 | IP- | passive | Primary current sense terminal (negative/return). Tied internally to pin 3; both must be connected in parallel to carry the primary current. |+| 5 | GND | power_in | Signal ground terminal. Reference for VCC, VIOUT, and FAULT. |+| 6 | FAULT | output | Overcurrent fault output; active low, open-drain. Latches low when |IP| exceeds ±100% of full-scale (±12.5 A for the -12AB variant) with tFAULT ≈ 1.3 µs. Requires an external pull-up resistor (RPU ≥ 1 kΩ) to VCC; VOL ≤ 0.3 V with RPU = 1 kΩ. Reset only by a power-off/on cycle with VCC held below 200 mV for ≥100 µs. |+| 7 | VIOUT | output | Analog output signal. Ratiometric voltage proportional to primary current IP with 110 mV/A sensitivity centered at VCC/2 for IP = 0 A. VIOH = VCC-0.3 V max, VIOL = 0.3 V max; drives up to 1 nF load; 100 kHz bandwidth, 4.6 µs response time. |+| 8 | VCC | power_in | Device power supply terminal. 3 V to 5.5 V (3.3 V nominal for rated accuracy). Supply current ICC ≈ 4 mA typ (5.5 mA max). Bypass with 0.1 µF ceramic to GND. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Allegro MicroSystems LLC |+| Package | SOP-8 |+| Category | Sensor |+| Pins | 8 |++## Ordering variants++- `ACS711KLCTR-12AB-TKLCTR-12AB-T`+- `ACS711KLCTR-12AB-TELCTR-12AB-T`+- `ACS711KLCTR-12AB-TKLCTR-25AB-T`+- `ACS711KLCTR-12AB-TELCTR-25AB-T`+- `ACS711KLCTR-12AB-TKEXLT-31AB-T`+- `ACS711KLCTR-12AB-TEEXLT-31AB-T`+- `ACS711KLCTR-12AB-TKEXLT-15AB-T`+- `ACS711KLCTR-12AB-TEEXLT-15AB-T`++## CAD (KiCad official)++- Symbol: `ACS711KLCTR-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/acs711klctr-12ab-t-datasheet.pdf) (18 pp, sha256 `2123c7c534373016`, 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/acs711klctr-12ab-t-datasheet.pdf)

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