Three-phase BLDC motor driver reduces size plus design time and BOM cost

Qorvo has added a highly integrated BLDC motor driver to its increasing family of power management products. Its new 160V, three-phase gate driver allows smaller solution size and dramatically decreases design time and BOM cost/count compared to a discrete automotive and industrial motor control approach.

The ACT72350 replaces as many as 40 discrete components in a BLDC motor control system and provides a configurable AFE, allowing customers to configure their exact sensing and position detection needs. It also includes a configurable power manager with an internal DC-DC Buck converter and LDOs to support internal components and serve as an optional supply for the host MCU device. The wide 25V to 160V input range also permits customers to reuse the same design for various battery-operated motor control applications, including power and garden tools, drones, EVs and e-bikes.

Jeff Strang, Qorvo Power Management GM, said, “The newest addition to our power management portfolio brings added flexibility to our customers’ BLDC designs, significantly reducing total solution size, design time and BOM cost. The ACT72350 provides the critical analog circuitry needed to implement a BLDC motor control system and can be paired with a variety of popular MCUs.”

The ACT72350 delivers high efficiency via programable propagation delay, precise current sensing and BEMF feedback, and differentiated features for safety-critical applications. This robust, SOI-based motor driver is obtainable now in a 9mm x 9mm, 57-pin QFN package.