Renesas Programmable Motor Driver ICs Are First to Enable Full Torque at Zero Speed for Sensorless Brushless DC Motors

Release time：2023-12-08
author：AMEYA360
source：Renesas
reading：2208

　　TOKYO, Japan ― Renesas Electronics Corporation (TSE:6723), a premier supplier of advanced semiconductor solutions, today introduced a family of motor driver ICs for brushless DC (BLDC) motor applications. The devices implement Renesas’ new, patent-pending technologies that enable full torque at zero speed from motors without sensors, an industry first. The new motor driver ICs enable Renesas customers to design sensorless BLDC motor systems with higher horsepower and speed at a given torque. They also improve power consumption and reliability, while reducing cost and board space by lowering the number of components designers need to use.

Renesas Programmable Motor Driver ICs Are First to Enable Full Torque at Zero Speed for Sensorless Brushless DC Motors

　　Renesas is introducing three new motor driver ICs with the new technology. The RAA306012 65V, 3-phase Smart Driver is a standalone device that can be paired with a variety of MCUs from Renesas or from other sources. The RAJ306101 integrates a Renesas RX13T 32-bit MCU with the RAA306012 in a single package, reducing board space and improving cost and reliability. The RAJ306102 integrates a 16-bit Renesas RL78/G1F MCU with the RAA306012, providing similar integration benefits.

　　The ability to enable full torque at zero speed without sensors is made possible by two Renesas innovations. Enhanced Inductive Sensing (EIS) offers stable position detection when the motor is completely stopped. When the motor is operating at extremely low speed, Motor Rotor position Identification (MRI) is used. At higher speeds, the new motor driver ICs use conventional methods. Both of the new EIS and MRI algorithms include patent-pending technology developed by Renesas.

　　“The advantages of sensorless design are numerous, including cost, space, power and reliability,” said Davin Lee, Vice President of the Advanced Analog Division at Renesas. “Our customers can now enjoy these benefits for systems that require full torque at zero speed. This industry first is a great example of Renesas combining our technical prowess with deep application knowledge to deliver a solution that meets a clear market need.”

　　“We are eager to implement sensorless technology into new products where we previously had to include sensors,” said Peter Korošec, President and CEO at Domel Inc, a global supplier of electric motors, vacuum motors, blowers, and components. “This breakthrough from Renesas will enable us to provide new products for our customers with the best available size, cost and reliability.”

　　Key Features of the Renesas New Motor Driver ICs

　　High integration including drivers, power management and current sensing

　　Adaptive and adjustable dead time improves efficiency

　　Charge pump maintains steady gate drive voltage at programmed settings

　　Programmable gate drive voltage enables driving of N MOSFETs and GaN FETs

　　Rich sensing blocks allow for better accuracy and wide-speed RPM drive

　　16 programmable slew rate settings minimize electromagnetic emissions

　　Supports all types of motor control algorithms such as Trapezoidal, Sinusoidal, and FOC

　　Extensive protection functions improve system safety

　　Winning Combinations

　　Renesas has combined the new motor driver ICs with complementary components from its portfolio to offer a wide array of Winning Combinations, including Cordless Vacuum Cleaner and 20V Cordless Leaf Blower. These Winning Combinations are technically vetted system architectures from mutually compatible devices that work together seamlessly to bring an optimized, low-risk design for faster time to market. Renesas offers more than 400 Winning Combinations with a wide range of products from the Renesas portfolio to enable customers to speed up the design process and bring their products to market more quickly. They can be found at renesas.com/win.

　　Availability

　　The RAA306012, RAJ306101, and RAJ306102 are available today. The RAA306012 is available in a 7mm x 7mm 48-pin QFN package. The RAJ306101 and RAJ306102 are offered in 8 x 8 mm 56-pin and 64-pin QFNs, respectively. Renesas is also offering evaluation kits for each of the new devices.

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Renesas Expands MCU/MPU Portfolio to Meet New Processing Needs of Edge AI
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Renesas Expands MCU/MPU Portfolio to Meet New Processing Needs of Edge AI

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Many consumer and industrial applications, such as smart home voice recognition and autonomous sensors, demand ultra-low latency responses. Cloud-based AI struggles to meet these requirements due to network delays, making on-device inference essential. 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　　Renesas Electronics Corporation (TSE:6723), a premier supplier of advanced semiconductor solutions, today introduced the RAA489300/RAA489301 high-performance buck controller designed with a three-level buck topology used for battery charging and voltage regulation in USB-C systems such as multiple-port USB-PD chargers, portable power stations, PC docking station, robots, drones, and other applications that need a high efficiency DC/DC controller.　　The three-level buck converter topology enabled by the new IC delivers exceptional efficiency and significantly reduces the required inductance for regulating the output voltage. Its innovative design minimizes power loss and reduces system size, making it ideal for compact, high-performance applications.　　The three-level topology consists of two additional switches and a flying capacitor compared to a conventional two-level buck converter. The flying capacitor reduces voltage stress on the switches, allowing designers to use lower voltage FETs with better figures of merit. The result is reduced conduction and switching losses. This topology also enables the use of a smaller inductor with peak-to-peak ripple of only about 25 percent of that of a two-level converter, enabling reduced inductor core and direct current resistance losses.　　Renesas is a worldwide leader in USB-PD solutions, offering a comprehensive range of products, including turnkey solutions for various applications. Renesas helps customers shorten their time-to-market with an extensive development environment and pre-certified USB-IF reference designs. Renesas USB-PD solutions offer superior quality and safety, along with high efficiency and power density.　　“This three-level buck topology solution is a prime example of Renesas’ worldwide leadership in battery charging,” said Gaurang Shah, Vice President of the Power Division at Renesas. “The innovative technology includes patent-pending breakthroughs that offer our customers clear advantages over competing USB-C power offerings.”　　The 3-Level DC-DC RAA489300/RAA489301 battery charger and voltage regulator offers superior thermal performance, which reduces cooling requirements and results in cost and space savings. This innovative approach addresses the growing demand for compact and efficient power management systems.　　Key Features of the RAA489300/RAA489301 battery charger and voltage regulator　　Wide range of input and output voltages for use in voltage battery packs and with various PD adapters　　Integrated safety features with built-in protection mechanisms against overcharging, overheating, and voltage anomalies　　Scalability for easily adapting to various power levels and application requirements　　Optimized switching architecture divides the voltage across power switches, improving efficiency　　Minimizes power consumption, contributing to greener, more sustainable designs　　Lower thermal stress improves system reliability and extends product lifespan　　Winning Combinations　　Renesas offers the RTK-251-SinkCharger-240W and the 240W Dual-Port Daughter Card Winning Combinations that minimize the effort required for customers to design USB-C battery charging into their products. Winning Combinations are technically vetted system architectures from mutually compatible devices that work together seamlessly to bring an optimized, low-risk design for faster time to market. Renesas offers more than 400 Winning Combinations with a wide range of products from the Renesas portfolio to enable customers to speed up the design process and bring their products to market more quickly. 　　Device Availability　　The RAA489300/RAA489301 is available today in a 4×4 mm 32-lead TQFN package. Comprehensive design support and tools, including the RTK-251-SinkCharger-240W Kit and the RTKA489300DE0000BU Evaluation Board, are also available.
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2025-07-30 15:09 reading：569
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2025-07-28 14:40 reading：414
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