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STMicroelectronics Debuts GaN ICs for Motor Control Systems

by | Nov 25, 2025

Introduces GaN motor-control ICs that reduce power loss, limit self-heating, and support higher-efficiency operation in home appliances, industrial equipment and factory systems
Image: STMicroelectronics

GENEVA, Switzerland, Nov 25, 2025 – STMicroelectronics introduced new GaN-based smart power components designed to improve energy efficiency, increase performance, and save cost in home appliances and industrial drives. The devices extend GaN (gallium-nitride) technology beyond adapters and chargers to support higher-performance motor systems used in equipment like washing machines, hairdryers, power tools, and factory automation.

“Our new GaNSPIN system-in-package platform unleashes wide-bandgap efficiency gains in motion-control applications by introducing special features that optimize system performance and safeguard reliability,” said Domenico Arrigo, general manager, application specific products division, STMicroelectronics. “The new devices enable future generations of appliances to achieve higher rotational speed for improved performance, with smaller and lower-cost control modules, lightweight form factors, and improved energy ratings.”

The first members of ST’s new family, the GANSPIN611 and GANSPIN612, can power motors of up to 400 Watts including domestic and industrial compressors, pumps, fans, and servo drives. Pin compatibility between the two devices ensures designs are scalable. GANSPIN611 is in production, in a 9mm x 9mm QFN package, from $4.44.

Technical Notes on GaNSPIN Drivers

The new GaNSPIN system-in-package uses a driver that controls turn-on and turn-off times in hard switching to reduce motor-winding stress and lower electromagnetic noise. It delivers a 10 V/ns nominal slew rate (dV/dt) to support reliability and meet electromagnetic compatibility (EMC) requirements, including the EU EMC directive. Designers can adjust the turn-on dV/dt for both GaN drivers to adjust switching performance depending on motor types.

The GANSPIN611 and GANSPIN612 integrate GaN transistors with RDS(on) levels of 138 mΩ and 270 mΩ respectively to reduce power loss and limit self-heating. The reduced losses allow power stages to operate without a heatsink, reducing assembly cost. The design also reduces circuit footprint by up to 60% to permit a smaller, lower-cost PCB.

Further features include:

  • System-in-package with driver and half-bridge power stage with 650V GaN power transistors for driving 3-phase BLDC motors
  • Integrated bootstrap diode for high-side circuitry
  • Suitable for universal 110V – 230V AC offline-powered appliances
  • Fault-sensing comparator for smart shutdown provides overcurrent protection with programmable disable time
  • Undervoltage lockout (UVLO), overvoltage, overcurrent, thermal, and interlocking protection
  • Wide supply and input-voltage range up to 20V, for robust and easy conversion of traditional power stages
  • Standby pin for power saving

Source: STMicroelectronics

About STMicroelectronics

STMicroelectronics (ST) is a semiconductor company founded in 1987. It designs and manufactures microcontrollers, sensors, power devices and other analog and mixed-signal components. The company operates as an integrated device manufacturer with in-house production that supports large-volume supply for global markets. Its customers include automotive, industrial, consumer electronics and communications equipment manufacturers. ST also works with technology partners to develop components used in mobility systems, energy and power management equipment and connected devices. The company reports ongoing efforts to reduce emissions across its operations and increase the share of renewable electricity in its manufacturing sites, with a goal to reach full renewable sourcing by 2027. ST is headquartered in Geneva, Switzerland. It serves more than 200,000 customers worldwide and employs about 50,000 people. Its technologies support applications that require efficient power conversion, sensing, processing and connectivity. The company expands its portfolio to support automotive, industrial, consumer and connected system applications through integrated design and manufacturing.