component
AT8549
Public Made by Adomby adom
ZHONGKEWEI Stepper Motor Driver, SSOP-10-150mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownAT8549
ZHONGKEWEI · Stepper Motor Driver · SSOP-10-150mil
AT8549 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 end, operating range 2.7-15V with capacitor filtering recommended. |
| 2 | EN | input | Enable input; high level enables normal chip operation, low level enters sleep mode. |
| 3 | PHS1 | input | Channel 1 H-bridge output control input with internal 100kΩ pull-down resistance. |
| 4 | PHS2 | input | Channel 2 H-bridge output control input with internal 100kΩ pull-down resistance. |
| 5 | NC | unconnected | Floating pin with no connection or defined function. |
| 6 | GND | power_in | Power supply ground. |
| 7 | OUT4 | tri_state | Channel 2 H-bridge output terminal; driven high or low or high-impedance when disabled. |
| 8 | OUT3 | tri_state | Channel 2 H-bridge output terminal; driven high or low or high-impedance when disabled. |
| 9 | OUT2 | tri_state | Channel 1 H-bridge output terminal; driven high or low or high-impedance when disabled. |
| 10 | OUT1 | tri_state | Channel 1 H-bridge output terminal; driven high or low or high-impedance when disabled. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ZHONGKEWEI |
| Package | SSOP-10-150mil |
| Category | Motor Driver ICs |
| Pins | 10 |
CAD (KiCad official)
- Symbol:
AT8549 - Footprint:
Package_SO:SSOP-10_3.9x4.9mm_P1.00mm - 3D model: SSOP-10-150mil (KiCad packages3D, STEP)
- 3D model files:
at8549-etched.step/at8549-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);at8549.step/at8549.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ZHONGKEWEI datasheet (9 pp, sha256
eb1d305b05cdbdf9, retrieved 2026-09-21, 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, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).