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GC8549
Public Made by Adomby adom
SX globalchip Stepper Motor Driver, SSOP-10. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownGC8549
SX globalchip · Stepper Motor Driver · SSOP-10
GC8549 from SX globalchip, in a SSOP-10. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VM | power_in | Motor supply input with a recommended range of 3.8 V to 12 V and an absolute maximum of 17 V; the bypass capacitor should sit as close to this pin as possible, and above 10 uF when supply voltage or current is high. |
| 2 | EN | input | Logic enable input: driving it low puts the H-bridge outputs in high-impedance sleep mode (under 1 uA total current), and it has an internal 40-100 kΩ pull-down with logic thresholds of VIL 1.26 V max and VIH 1.48 V min. |
| 3 | IN1 | input | Channel 1 direction/PWM input that, together with EN, sets the OUT1/OUT3 bridge state; it is 3.3 V and 5 V logic compatible and has an internal 40-100 kΩ pull-down. |
| 4 | IN2 | input | Channel 2 direction/PWM input that, together with EN, sets the OUT2/OUT4 bridge state; it is 3.3 V and 5 V logic compatible and has an internal 40-100 kΩ pull-down. |
| 5 | NC | unconnected | No internal connection; this pin is left floating on the package. |
| 6 | GND | power_in | Ground reference for the device; the datasheet specifies the H-bridge short-to-ground protection that acts on the outputs but gives no separate ground pin limit. |
| 7 | OUT4 | output | H-bridge output 4 (channel 2 low side/high side driver), rated for up to 1.5 A continuous per channel and 3 A peak limited by overcurrent protection. |
| 8 | OUT3 | output | H-bridge output 3 (channel 1 driver), rated for up to 1.5 A continuous per channel and 3 A peak limited by overcurrent protection. |
| 9 | OUT2 | output | H-bridge output 2 (channel 2 driver), rated for up to 1.5 A continuous per channel and 3 A peak limited by overcurrent protection. |
| 10 | OUT1 | output | H-bridge output 1 (channel 1 driver), rated for up to 1.5 A continuous per channel and 3 A peak limited by overcurrent protection. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | SX globalchip |
| Package | SSOP-10 |
| Category | Motor Driver ICs |
| Pins | 10 |
CAD (KiCad official)
- Symbol:
GC8549 - Footprint:
Package_SO:SSOP-10_3.9x4.9mm_P1.00mm - 3D model: SSOP-10 (KiCad packages3D, STEP)
- 3D model files:
gc8549-etched.step/gc8549-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);gc8549.step/gc8549.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: SX globalchip datasheet (11 pp, sha256
fbc6de5f5a149a3b, retrieved 2026-10-09, 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 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(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).