Efficient Power Conversion (EPC) has introduced a new generation of 100 V integrated GaN power-stage ICs - EPC23108, EPC23109, EPC23110 and EPC23111 - targeting high-performance motion and power systems such as humanoid robots, drones, and other compact battery-powered platforms. The devices are designed to simplify implementation and improve operational robustness in real-world environments while preserving the efficiency and power-density advantages typical of integrated GaN technology.
Each IC integrates the high-side and low-side eGaN FETs together with the gate driver and level shifting circuitry in a thermally enhanced QFN package. They support operation up to 100 V, with load current capability of 35 A (EPC23108, EPC23109) and 20 A (EPC23110, EPC23111), enabling reliable high-frequency switching performance.
The control interface has an active-low fast-shutdown and standby input with a built-in 65 kΩ pull-up, which makes it work with industrial logic standards. As a result, designers can connect the devices directly to standard controllers without having to do any extra signal conditioning. This makes the design easier and makes sure that the devices work the same way on all platforms.
Operational safety is improved through deterministic shutdown behavior. When standby is asserted, PWM switching stops immediately and the driver enters a low-quiescent-current state from the VDRV supply. If the driver supply is lost, an active gate pull-down ensures both the high-side and low-side FETs remain off, maintaining system control during fault conditions and enhancing reliability.
The family also supports continuous 100% duty-cycle operation, which is necessary for full-torque and uninterrupted conduction modes in motion control, robotics, and precision regulation systems. This lets designers use control strategies without having to worry about modulating them, while still keeping things running smoothly.
EPC23109 and EPC23111 have single pin PWM input with enable logic and fixed dead time to ease multi axis designs. EPC23108 and EPC23110 have conventional dual PWM inputs to allow online adaptive dead time modulation schemes.
The new ePower Stage ICs reduce the need for external parts, make firmware design easier, and make operations more predictable by making device behavior match system-level expectations. They are well suited for applications where reliability and consistent performance are critical, including robotics, motion control, medical equipment, DC-DC converters and Class-D audio systems.