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ACS724LLCTR-20AU-T
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Allegro MicroSystems LLC Current Sensors, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+43@@ -0,0 +1,43 @@+# ACS724LLCTR-20AU-T++**Allegro MicroSystems LLC** · Current Sensors · SOP-8++ACS724LLCTR-20AU-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 path positive terminal; current flows through this terminal, internally fused, with 1.2 mΩ typical resistance. |+| 2 | IP+ | passive | Primary current path positive terminal; current flows through this terminal, internally fused, with 1.2 mΩ typical resistance. |+| 3 | IP- | passive | Primary current path negative terminal; current flows through this terminal, internally fused, with 1.2 mΩ typical resistance. |+| 4 | IP- | passive | Primary current path negative terminal; current flows through this terminal, internally fused, with 1.2 mΩ typical resistance. |+| 5 | GND | power_in | Signal ground terminal; reference potential for the analog output signal VIOUT and sensor IC secondary side. |+| 6 | FILTER | passive | External capacitor connection for bandwidth filtering; forms RC circuit with internal 1.8 kΩ resistance to optimize noise and resolution. |+| 7 | VIOUT | output | Analog output signal proportional to primary sensed current in 0-20 A range; unidirectional output with quiescent voltage of 0.1 × VCC nominal (approximately 0.5 V at 5 V supply). |+| 8 | VCC | power_in | Device power supply terminal; operates at 4.5-5.5 V nominal with typical supply current of 10-14 mA. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Allegro MicroSystems LLC |+| Package | SOP-8 |+| Category | Magnetic Sensors |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `ACS724LLCTR-20AU-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](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588912039633174528) (33 pp, sha256 `27366dfcae62c483`, retrieved 2026-09-17, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/acs724llctr-20au-t-datasheet.pdf)
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