ACS713ELCTR-20A-T

@@ -0,0 +1,48 @@+# ACS713ELCTR-20A-T++**Allegro MicroSystems LLC** · Current Sensors · SOIC-8++ACS713ELCTR-20A-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 | Input terminal for current being sampled; internally fused to pin 2 forming one side of the low-resistance (~1.2 mΩ) primary copper conduction path. Electrically isolated from the signal side (pins 5-8) up to 2.1 kVRMS. |+| 2 | IP+ | passive | Input terminal for current being sampled; internally fused to pin 1. Together pins 1-2 form the positive side of the primary current conduction path. |+| 3 | IP- | passive | Output terminal for current being sampled; internally fused to pin 4 forming the return side of the primary copper conduction path. Isolated from the signal side up to 2.1 kVRMS. |+| 4 | IP- | passive | Output terminal for current being sampled; internally fused to pin 3. Together pins 3-4 form the return side of the primary current path. |+| 5 | GND | power_in | Signal ground terminal for the Hall sensor and output amplifier circuitry. Reference for VCC, VIOUT, and FILTER. |+| 6 | FILTER | passive | Terminal for external capacitor (CF) that sets device bandwidth together with the ~1.7 kΩ internal filter resistance (RF(INT)). Larger CF lowers bandwidth and reduces output noise. |+| 7 | VIOUT | output | Analog output signal. Voltage is proportional to sampled DC primary current with sensitivity 185 mV/A (20A variant); quiescent output (IP = 0 A) is VCC × 0.1. Output source/sink capability 3 mA / 10 mA. |+| 8 | VCC | power_in | Device power supply terminal. 5.0 V nominal (4.5 to 5.5 V), typical supply current 10 mA (13 mA max). Output is ratiometric to VCC. Bypass with a 0.1 µF ceramic capacitor to GND. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Allegro MicroSystems LLC |+| Package | SOIC-8 |+| Category | Sensor |+| Pins | 8 |++## Ordering variants++- `ACS713ELCTR-20A-T`+- `ACS713ELCTR-20A-TELCTR-30A-T`++## CAD (KiCad official)++- Symbol: `ACS713ELCTR-20A-T`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Allegro MicroSystems LLC datasheet](docs/acs713elctr-20a-t-datasheet.pdf) (15 pp, sha256 `50e71d5195b1c939`, 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/acs713elctr-20a-t-datasheet.pdf)

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