ADI Launches iCoupler-Based ADuM4122
| MOSFET/IGBT switching at desired speed
| Motor current consumption adjustment with situation-appropriate control


As designers strive to further increase the level of factory automation, they are challenged to reduce the electromagnetic (EM) emissions of motion systems and increase power efficiency.

Analog Devices (ADI) today unveiled the ADuM4122, an isolated dual-drive strength output driver based on its iCoupler technology.

The ADuM4122 is a simple output driver with dual drive capability that can efficiently switch between two digitally controllable slew rates.

While existing discrete or complex integrated solutions are bulky with over 20 pins, the ADuM4122 has only 8 pins, is smaller, and operates under a wide range of operating conditions.

According to the International Energy Agency (IEA), electric motor-driven systems account for 40% of global electricity consumption, so improving motor efficiency can have significant economic and environmental benefits..

The ADuM4122 controls the MOSFET or IGBT to turn on and off as fast or slow as the user desires, and controls the motor current consumption accordingly.

“In the past, conventional solutions required gate driver strength selection to ensure EM system compliance at all operating points,” said Mack Lund, director of ADI’s Interface and Isolation Technology Group. “This meant these systems were over-engineered and under-utilized.”

“Now, users can dynamically switch from slower to faster switching speeds, optimizing EM emissions without compromising efficiency,” he said. “Users no longer have to sacrifice performance to reduce EM emissions and power consumption.”

The ADuM4122 is available now, priced starting at $2.53 in 1,000-unit quantities in an 8-pin SOIC package.