# AT8548

**ZHONGKEWEI** · Stepper Motor Driver · SSOP-10-150mil

AT8548 from ZHONGKEWEI, in a SSOP-10-150mil. 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 | VCC | power_in | Power supply voltage, rated -0.3 to 15V with recommended operating range 2.7-12V. |
| 2 | IN1 | input | Channel 1 output control input with built-in 100kΩ pull-down resistor and 900ns deglitch time. |
| 3 | IN2 | input | Channel 1 output control input with built-in 100kΩ pull-down resistor and 900ns deglitch time. |
| 4 | IN3 | input | Channel 2 output control input with built-in 100kΩ pull-down resistor and 900ns deglitch time. |
| 5 | IN4 | input | Channel 2 output control input with built-in 100kΩ pull-down resistor and 900ns deglitch time. |
| 6 | GND | power_in | Power supply ground reference. |
| 7 | OUT4 | output | Channel 2 motor output, maximum ±1A per bridge or 2A with paralleled outputs. |
| 8 | OUT3 | output | Channel 2 motor output, maximum ±1A per bridge or 2A with paralleled outputs. |
| 9 | OUT2 | output | Channel 1 motor output, maximum ±1A per bridge or 2A with paralleled outputs. |
| 10 | OUT1 | output | Channel 1 motor output, maximum ±1A per bridge or 2A with paralleled outputs. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ZHONGKEWEI |
| Package | SSOP-10-150mil |
| Category | Motor Driver ICs |
| Pins | 10 |

## CAD (KiCad official)

- Symbol: `AT8548`
- Footprint: `Package_SO:SSOP-10_3.9x4.9mm_P1.00mm`
- 3D model: SSOP-10-150mil (KiCad packages3D, STEP)
- 3D model files: `at8548-etched.step` / `at8548-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `at8548.step` / `at8548.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [ZHONGKEWEI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588944479898243072) (12 pp, sha256 `f5c9067adc68f508`, retrieved 2026-09-22, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/at8548-datasheet.pdf)