Renesas’ programmable smart gate driver boost to BLDC motor applications

Renesas Electronics Corporation has introduced the RAA227063 smart gate driver for brushless DC (BLDC) motor applications. The new device is programmable via an SPI interface, enabling it to support motors with rotor position sensors and sensorless applications. It also provides programmable gate drive voltage, offering support for N-channel MOSFETs typically used in motor inverter designs, as well as GaN FETs used where high-power density is required. 

The RAA227063 is scalable to support multiple MCUs, including a wide range of offerings from Renesas. In addition to its flexibility, the integrated RAA227063 three-phase FET driver includes a 500mA buck-boost converter that powers low-voltage logic directly from the battery pack with 90 per cent power efficiency compared to traditional LDOs (40 per cent), says Renesas. It also includes a 200mA LDO regulator that can power both an MCU and additional analogue peripherals. Three integrated current sense amplifiers with programmable gain enable easy programming for multiple shunt configurations. 

According to Renesas, this high level of integration simplifies design, cuts overall BOM cost and reduces board space requirements by 30 per cent or more. “Motor control customers around the world have asked us for flexible solutions that enable fast design cycles and high integration to reduce cost and space,” said Davin Lee, vice-president of the industrial analogue division in Renesas’ IoT and infrastructure business unit. “The RAA227063 delivers all these features and complements our industry-leading MCU portfolio.”

The RAA227063 is available in a 7mm x 7mm 48-pin QFN package. Renesas is also offers the RTKA227063 evaluation kit that includes a 500W inverter that can use multiple CPU cards.

Renesas delivers embedded design innovation with complete semiconductor solutions that enable billions of connected, intelligent devices to enhance the way people work and live. A global leader in microcontrollers, analogue, power and SoC products, Renesas provides comprehensive solutions for a broad range of automotive, industrial, Infrastructure and IoT applications.

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