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GC8549

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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); gc8549.step / gc8549.glb are 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, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF