New simulation and optimization platform enables customized coil designs for industrial, robotics and medical systems
TOKYO, Japan, October 9, 2025 – Renesas Electronics Corporation (TSE:6723), a leading provider of advanced semiconductor solutions, today introduced a new family of magnet-free inductive position sensor (IPS) ICs that are fully customizable to various coil designs and with a variety of industrial applications such as robotics, medical and healthcare, intelligent buildings, household appliances and motor commutation are compatible. Designed for high resolution, precision, and robust performance, the new RAA2P3226, RAA2P3200, and RAA2P4200 sensor ICs provide a cost-effective alternative to traditional magnetic and optical encoders, which can be bulky, expensive, and require frequent maintenance. Renesas has also launched a web-based design tool that allows customers to easily create custom sensor elements to meet their specific system requirements.
Renesa's IPS products are based on non-contact coil sensor technology and use a simple metallic target and dual coil or single coil configurations to detect absolute rotary, linear or arc positions. These sensor ICs are designed to maintain stable operation even in environments with elevated temperatures (-40 to 125°C), particulate matter, humidity, mechanical vibration and electromagnetic interference. In addition, they are immune to stray magnetic fields and, unlike sensors based on magnetic or optical encoders, do not require maintenance. Their durability and low maintenance make them a reliable and cost-effective sensor solution for motor drives, actuators, valves, service robots and infrastructure applications where reliability and long-term performance are critical.
All three products offer high precision in detecting target positions with an accuracy of more than 0.1 percent of the entire electrical range. Two of the products, RAA2P3226 and RAA2P3200, operate at 600,000 rpm (electrical) and propagation delays below 100 ns, essential in high-speed motor applications. The advanced RAA2P3226 supports dual-coil detection with up to 19-bit resolution and 0.01° absolute accuracy, providing the high-precision performance required for robotic applications. The RAA2P4200 is designed for low speed applications such as medical devices and power tools and the RAA2P3200 is optimized for commutation of high speed motors. All three products include automatic calibration and linearization to simplify integration and improve system-level performance.
In addition to these three products, Renesas will also introduce automotive-grade IPS, RAA2P452x and RAA2P4500, which will be available later this year. The dual-channel RAA2P452x allows customers to achieve ASIL-D safety compliance when combined with Renesas MCUs. This automotive-grade solution provides a cost-effective option for low-speed body control and chassis systems without compromising on quality.
Designing with inductive position sensors typically involves integrating a circuit board, an IC with passive components, and a metal target mounted to the moving part. The most complex part is the external sensing element, such as the transmitter and receiver coils, which must be precisely configured and adapted to the mechanical and environmental requirements of the system to ensure accuracy. Renesas' web-based inductive position sensor coil optimization tool addresses this challenge by automating coil layout, simulation and tuning, significantly reducing the learning curve for developers. This tool also allows engineers to obtain accurate performance estimates and overcome manufacturing limitations by optimizing coil layout.
“Our new web-based coil design tool fundamentally changes inductive position sensing,” he said Leopold Beer, Vice President of the Sensor Department at Renesas. “Historically, developers have had to rely on technical expertise from chip suppliers when working with inductive position sensors. We have completely eliminated this hurdle. With this intuitive tool, developers can fully customize the sensing element and automatically fine-tune it to achieve maximum accuracy and robustness at the system level. This significantly lowers the barrier to entry and allows more customers, regardless of their expertise, to safely integrate inductive position detection into your designs.”
Key features of the RAA2P3226, RAA2P3200 and RAA2P4200
RAA2P3226
- Double coil IPS for fully inductive robot joints, logistics and industrial robots/cobots
- Output interfaces: UART, ABI, Step-Dir, I²C
- Up to 19-bit resolution and 0.01° absolute accuracy (integrated vernier)
- Automatic gain control (AGC) to compensate for air gap fluctuations
- 16-point linearization function to improve accuracy
- Real power position information at startup
- Rotary on-axis and off-axis, arc and linear implementations possible
- Industrial grade temperature range: -40°C to 125°C
- Supply voltage: 3.0V to 5.5V
RAA2P3200
- High-speed, low-latency IPS for motor commutation, e-bikes and industrial robots/cobots
- Output interfaces: SPI, UART, ABI, UVW or Step-Dir
- Automatic gain control (AGC) to compensate for air gap fluctuations
- 16-point linearization function to improve accuracy
- Rotary on-axis and off-axis, arc and linear implementations possible
- Industrial grade temperature range: -40°C to 125°C
- Supply voltage: 3.0V to 5.5V
- Overvoltage, reverse polarity and short circuit protection
RAA2P4200
- Single coil design for slow service robots, power tools and medical applications
- Output interfaces: Analog, PWM, I²C
- Automatic gain control (AGC) to compensate for air gap fluctuations
- 16-point linearization function to improve accuracy
- Rotary on-axis and off-axis, arc and linear implementations possible
- Industrial grade temperature range: -40°C to 125°C
- Supply voltage: 3.0V to 5.5V
- Overvoltage, reverse polarity and short circuit protection
- Replacing the ZMID4200 device
Winning combinations
Renesas combined the RAA2P3226 with other compatible devices to create two successful combinations: Mini BLDC Servo and Turntable System. Winning combinations are technically proven system architectures of compatible devices that work seamlessly together to create 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 accelerate the design process and bring their products to market faster. You can find it at renesas.com/win.
Availability
The RAA2P3226, RAA2P3200, and RAA2P4200 models are available in mass production along with evaluation kits. The automotive-grade RAA2P452x and RAA2P4500 models will enter production in the fourth quarter of 2025. The coil optimizer for inductive position sensors is now available and supports all Renesas IPS products. For more information, visit https://www.renesas.com/IPS.
About Renesas Electronics Corporation
Renesas Electronics Corporation (TSE: 6723) enables a safer, smarter and more sustainable future where technology helps make our lives easier. Renesas is a global leader in microcontrollers, combining our embedded processing, analog, power and connectivity expertise to deliver complete semiconductor solutions. These winning combinations accelerate the time to market of automotive, industrial, infrastructure and IoT applications and enable billions of connected, intelligent devices that improve the way people work and live. Learn more at renesas.com. Follow us on LinkedIn, Facebook, X, YouTubeAnd Instagram.
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