Part Datasheet Review
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Part Datasheet Review: ACS37800KMACTR-030B3-SPI
Date: 2026-07-21 Current Flux part project: silicon-yard/acs37800kmactr-030b3-spi
Completed the part review and saved the detailed findings in Part Datasheet Review: ACS37800KMACTR-030B3-SPI.
Open items:
- Datasheet URL exists, so I did not overwrite it, but the official Allegro URL would be better for traceability.
- Pin names/numbers match the datasheet, but pin types and pin descriptions are missing.
- Footprint matches SOICW-16 overall, but pad length is shorter than Allegro’s reference land pattern.
Suggested next steps:
- Update the Datasheet URL to the official Allegro PDF.
- Add datasheet-backed pin descriptions and electrical pin types.
- Adjust the footprint pad length/row spacing to Allegro’s reference if you want exact manufacturer-land-pattern alignment.
Fix metadata and footprint
Update datasheet URL
Add pin metadata
Fix footprint geometry
Run ERC DRC
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Part Datasheet Review: ACS37800KMACTR-030B3-SPI
Date: 2026-07-21
Sources reviewed
- Current Flux part project:
silicon-yard/acs37800kmactr-030b3-spi - Existing Flux Datasheet URL property:
https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/0fef1711be029be077b34a0ce6693678e8c28fa52e3b8a50552efc2f74b02c7f.pdf - Official Allegro product page:
https://www.allegromicro.com/en/products/sense/current-sensor-ics/integrated-current-sensors/acs37800 - Official Allegro datasheet:
https://www.allegromicro.com/-/media/files/datasheets/acs37800-datasheet.pdf
The part already had a Datasheet URL property set, so it was not overwritten under the user's instruction to update only when missing. The official Allegro URL above was used as corroboration.
Current part information in Flux
Table
| Field | Current value |
|---|---|
| Project / part name | ACS37800KMACTR-030B3-SPI |
| Published as part | Yes |
| Part UID | 1b826cea-669c-41e9-901e-68e90e80c0a7 |
| Manufacturer Part Number | ACS37800KMACTR-030B3-SPI |
| Manufacturer Name | Allegro Microsystems |
| Description | Isolated, Digital Output, Power Monitoring IC With Zero-Crossing Detection, Overcurrent And Overvoltage Flagging |
| Part Type | Integrated Circuits |
| Designator Prefix | IC |
| Pin / pad count | 16 |
| Datasheet URL | Existing uploaded PDF URL, not vendor URL |
| Footprint asset | SOIC127P1030X265-16N.kicad_mod |
| Footprint description | MA 16-Pin SOICW |
| 3D model | ACS37800KMACTR-030B3-SPI.stp |
Key datasheet specs for ACS37800KMACTR-030B3-SPI
Table
| Parameter | Datasheet value |
|---|---|
| Function | Isolated digital-output AC/DC power monitoring IC with zero-crossing, overcurrent, overvoltage and undervoltage features |
| Variant | 3.3 V, ±30 A, SPI, bidirectional, MA package |
| Package | MA, 16-pin SOICW, JEDEC MS-013AA reference |
| Operating temperature | -40°C to 125°C |
| VCC operating range | 2.97 V to 3.63 V for 3.3 V variant |
| Supply current | 12 mA typ, 15 mA max, no output-pin load |
| Recommended VCC bypass | 0.1 µF from VCC to GND |
| Current sensing range | -30 A to +30 A |
| Current sensitivity | 916.7 LSB/A typical for 030B3 variant |
| Main voltage/current bandwidth | 1 kHz |
| Instantaneous update rate | 32 kHz |
| Overcurrent path bandwidth | 200 kHz |
| Overcurrent response | 5 µs typical under datasheet test conditions |
| Voltage input differential range | VINP - VINN = ±250 mV; VINN always connect to GND per terminal list |
| SPI clock | 0.1 MHz to 10 MHz |
| SPI note | Datasheet recommends ACS37800 be the only device on the SPI bus because MISO continues to drive when CS is high |
| Isolation withstand | 5000 VRMS, 60 s agency type-test per UL 62368-1 edition 3 |
| Working voltage, basic isolation | 1550 VPK/VDC or 1097 VRMS |
| Working voltage, reinforced isolation | 800 VPK/VDC or 565 VRMS |
| Clearance / creepage | 8 mm minimum from IP leads to signal leads |
Pin cross-check
Table
| Pin | Flux symbol label | Datasheet name | Datasheet description | Result |
|---|---|---|---|---|
| 1 | IP+_1 | IP+ | Terminals for current being sensed; connected internally | Match |
| 2 | IP+_2 | IP+ | Terminals for current being sensed; connected internally | Match |
| 3 | IP+_3 | IP+ | Terminals for current being sensed; connected internally | Match |
| 4 | IP+_4 | IP+ | Terminals for current being sensed; connected internally | Match |
| 5 | IP-_1 | IP- | Terminals for current being sensed; connected internally | Match |
| 6 | IP-_2 | IP- | Terminals for current being sensed; connected internally | Match |
| 7 | IP-_3 | IP- | Terminals for current being sensed; connected internally | Match |
| 8 | IP-_4 | IP- | Terminals for current being sensed; connected internally | Match |
| 9 | DIO_1_/_CS | DIO_1/CS | Digital I/O 1 / Chip Select for SPI | Match |
| 10 | DIO_0_/_MOSI | DIO_0/MOSI | Digital I/O 0 / MOSI for SPI | Match |
| 11 | SCL_/_SCLK | SCL/SCLK | SCL for I2C / SCLK for SPI | Match |
| 12 | SDA_/_MISO | SDA/MISO | SDA for I2C / MISO for SPI | Match |
| 13 | VCC | VCC | Device power supply terminal | Match |
| 14 | GND | GND | Device ground terminal | Match |
| 15 | VINN | VINN | Negative voltage input, always connect to GND | Match |
| 16 | VINP | VINP | Positive voltage input | Match |
Footprint cross-check
Table
| Feature | Datasheet reference | Current Flux footprint | Result |
|---|---|---|---|
| Pin count | 16 | 16 | Match |
| Package family | MA 16-pin SOICW | SOIC127P1030X265-16N, described as MA 16-Pin SOICW | Match |
| Pin pitch | 1.27 mm BSC | 1.27 mm | Match |
| Body length | 10.21 ± 0.10 mm | Fab outline approximately 10.30 mm | Match / within expected nominal representation |
| Body width | 7.50 ± 0.10 mm | Fab outline 7.50 mm | Match |
| Overall lead span | 10.31 ± 0.20 mm | Footprint name/code implies ~10.30 mm; pad-row placement is compatible | Match |
| Recommended pad width | 0.65 mm | 0.65 mm | Match |
| Recommended pad length | 2.25 mm | 1.95 mm | Mismatch / shorter than Allegro reference |
| Recommended pad row spacing | 9.50 mm center-to-center | 9.45 mm center-to-center | Minor deviation, 0.05 mm narrower |
| Adjacent pad clearance | Minimum 0.20 mm | Pitch 1.27 mm minus 0.65 mm pad width = 0.62 mm | Pass |
Mismatches and metadata gaps
- Pin electrical types are all
Unspecified. Datasheet supports more specific types: IP+/IP- as current conductor/passive, VCC as power input, GND as ground, VINP/VINN as voltage input, SPI pins as input/output/digital. - Pin descriptions are not populated as explicit
Pin Descriptionproperties. The symbol labels and pin numbers match, but the datasheet descriptions are missing from the part metadata. - Package is present through the footprint but not explicit as a part property. Consider adding
Package or Case Code = MA / SOICW-16or equivalent if the library workflow expects package metadata separate from the footprint asset. - Datasheet URL property points to an uploaded PDF, not the official Allegro URL. This is valid as an existing datasheet reference, but vendor traceability would be better if updated to
https://www.allegromicro.com/-/media/files/datasheets/acs37800-datasheet.pdf. - Footprint pad length is shorter than Allegro's reference land pattern. Current land length is 1.95 mm vs datasheet reference 2.25 mm. Row spacing is also 9.45 mm vs 9.50 mm. This is probably still solderable for SOICW but is a real deviation from the manufacturer reference pattern.
Overall result
The core identity, MPN, manufacturer, description, pin count, pin numbering, and pin names match the Allegro datasheet. The main issues are metadata completeness and a footprint land-pattern deviation: all terminal pin types/descriptions are unspecified/missing, the Datasheet URL is not the official vendor URL, and pad length/row spacing differ from the Allegro reference footprint.
Sources reviewed
Current part information in Flux
Key datasheet specs for ACS37800KMACTR-030B3-SPI
Pin cross-check
Footprint cross-check
Mismatches and metadata gaps
Overall result
