TOKYO, Japan, Oct 10, 2025 – Renesas Electronics has introduced magnet-free inductive position sensor (IPS) ICs designed for flexible coil configurations. The RAA2P3226, RAA2P3200, and RAA2P4200 devices support a range of industrial applications, including robotics, medical and healthcare, smart buildings, home appliances, and motor commutation. The sensors provide high resolution and precision while offering a lower-cost alternative to magnetic and optical encoders, which are often bulky and require frequent maintenance. Renesas also released a web-based design tool that lets engineers create custom sensing elements tailored to system requirements.
Operating on non-contact coil sensor technology, Renesas IPS products use a 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 in environments within a wide temperature range (-40 to 125°C), particulate matter, moisture, mechanical vibration and electromagnetic interference. Moreover, the sensors resist interference from stray magnetic fields and require no maintenance. Their durability makes them suitable for motor drives, actuators, valves, service robots, and infrastructure systems where reliability and stable performance are essential.
The RAA2P3226 and RAA2P3200 operate at 600K RPM (electrical) with propagation delays under 100ns. The RAA2P3226 supports dual-coil sensing with up to 19-bit resolution and 0.01° accuracy, suitable for robotic applications. The RAA2P4200 targets low-speed applications such as medical devices and power tools and the RAA2P3200 is optimized for motor commutation. All three products include automatic calibration and linearization to simplify integration and improve system-level performance.
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 paired with Renesas MCUs. This solution offers a cost-effective option for low-speed body control and chassis systems ensuring quality.
Designing with inductive position sensors requires a printed circuit board, an IC with passive components, and a metal target attached to the moving part. The sensing element – transmitter and receiver coils – must be customized to the system’s mechanical and environmental needs. Renesas’ inductive position sensor coil optimizer simplifies this process by automating coil layout, simulation, and tuning. The tool helps engineers generate accurate performance estimates and adjust designs to meet manufacturing constraints while reducing development time and complexity.
“Our new web-based coil design tool is a game changer for inductive position sensing,” said Leopold Beer, vice president of the Sensors division at Renesas. “In the past, developers had to rely on chip suppliers for technical expertise when working with inductive position sensors. We completely removed this hurdle. This intuitive tool lets developers fully customize the sensing element and automatically fine-tunes it to achieve maximum accuracy and robustness at the system level. This dramatically lowers the barrier of entry and enables more customers, regardless of their expertise level, to confidently integrate inductive position sensing into their designs.”
Key Features of the RAA2P3226, RAA2P3200 and RAA2P4200
RAA2P3226
- Dual-coil IPS for full inductive robotic joints, logistic 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 variations
- 16-point linearization feature to improve the accuracy
- True-power-on position information at the start-up
- 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 variations
- 16-point linearization feature to improve the 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 low-speed service robots, power tools and medical applications
- Output interfaces: Analog, PWM, I²C
- Automatic Gain Control (AGC) to compensate for air-gap variations
- 16-point linearization feature to improve the 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 develop two winning combinations: Mini BLDC Servo and Turntable System. Renesas offers more than 400 winning combinations with a range of products from the Renesas portfolio to enable customers to speed up the design process and bring their products to market more quickly.
Availability
The RAA2P3226, RAA2P3200 and RAA2P4200 are available in volume production, along with evaluation kits. The automotive-grade RAA2P452x and RAA2P4500 will be in production in Q4/2025. The Inductive Position Sensor Coil Optimizer is available and supports all Renesas IPS products.
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Source: Renesas Electronics
About Renesas Electronics
Renesas Electronics Corp., based in Tokyo, supplies power management integrated circuits (PMICs) and ships more than 1.5 billion power devices annually for computing, industrial, IoT, data center, and communications markets. Its portfolio includes PMICs, discrete devices, GaN power products, and design tools such as PowerCompass and PowerNavigator. These work with microcontrollers, SoCs, and connectivity solutions to support system design. The company was formed in 2010 through the merger of Renesas Technology and NEC Electronics, with origins in semiconductor units of Hitachi, Mitsubishi, and NEC. For the fiscal year ending Dec. 31, 2024, Renesas reported revenue between $9B and $10B.