ACS724KMATR-20AB-T

@@ -0,0 +1,55 @@+# ACS724KMATR-20AB-T++**Allegro MicroSystems LLC** · Current Sensors · SOIC-16-300mil++ACS724KMATR-20AB-T from Allegro MicroSystems LLC, in a SOIC-16-300mil. 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); fused internally with pins 2, 3, 4. Carries the primary sensed current IP through the internal 0.85 mΩ copper conduction path. |+| 2 | IP+ | passive | Terminal for current being sensed (positive side); fused internally with pins 1, 3, 4. Carries the primary sensed current IP through the internal 0.85 mΩ copper conduction path. |+| 3 | IP+ | passive | Terminal for current being sensed (positive side); fused internally with pins 1, 2, 4. Carries the primary sensed current IP through the internal 0.85 mΩ copper conduction path. |+| 4 | IP+ | passive | Terminal for current being sensed (positive side); fused internally with pins 1, 2, 3. Carries the primary sensed current IP through the internal 0.85 mΩ copper conduction path. |+| 5 | IP- | passive | Terminal for current being sensed (return side); fused internally with pins 6, 7, 8. Return of the primary sensed current IP through the internal copper conduction path. |+| 6 | IP- | passive | Terminal for current being sensed (return side); fused internally with pins 5, 7, 8. Return of the primary sensed current IP through the internal copper conduction path. |+| 7 | IP- | passive | Terminal for current being sensed (return side); fused internally with pins 5, 6, 8. Return of the primary sensed current IP through the internal copper conduction path. |+| 8 | IP- | passive | Terminal for current being sensed (return side); fused internally with pins 5, 6, 7. Return of the primary sensed current IP through the internal copper conduction path. |+| 9 | NC | unconnected | No internal connection; recommended to be left unconnected to maintain high creepage between the primary (IP) side and the signal side. |+| 10 | VCC | power_in | Device power supply terminal. Operating range 4.5 to 5.5 V (typ 5 V), ICC ≈ 10 mA typ. Bypass to GND with 0.1 µF near the pin. |+| 11 | NC | unconnected | No internal connection; recommended to connect to GND for the best ESD performance. |+| 12 | VIOUT | output | Analog output signal. Voltage is ratiometric to VCC with a zero-current quiescent level of VCC/2 and a typical sensitivity of 100 mV/A for the -20AB variant. Output rides on VCC (VOH ≥ VCC−0.5 V, VOL ≤ 0.5 V). |+| 13 | FILTER | passive | Terminal for external capacitor CF that sets the output bandwidth (internal RF ≈ 1.7 kΩ forms an RC with CF). Reduces noise at the cost of bandwidth; typical CF = 1 nF. |+| 14 | NC | unconnected | No internal connection; recommended to connect to GND for the best ESD performance. |+| 15 | GND | power_in | Signal ground terminal. Return for VCC and VIOUT. |+| 16 | NC | unconnected | No internal connection; recommended to be left unconnected to maintain high creepage between the primary (IP) side and the signal side. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Allegro MicroSystems LLC |+| Package | SOIC-16-300mil |+| Category | Sensor |+| Pins | 16 |++## Ordering variants++- `ACS724KMATR-20AB-T`++## CAD (KiCad official)++- Symbol: `ACS724KMATR-20AB-T`+- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`+- 3D model: SOIC-16-300mil (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Allegro MicroSystems LLC datasheet](docs/acs724kmatr-20ab-t-datasheet.pdf) (20 pp, sha256 `32464f39a53b90bc`, 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/acs724kmatr-20ab-t-datasheet.pdf)

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