Renesas Electronics has introduced a new line of magnet-free inductive position sensor (IPS) ICs, namely RAA2P3226, RAA2P3200, and RAA2P4200 that have been designed for high resolution, precision, and robust performance across various industrial applications such as robotics, medical devices, smart buildings, home appliances, and motor commutation. These sensor ICs provide an affordable alternative to traditional magnetic and optical encoders by eliminating bulky components and maintenance needs. Complementing these products, Renesas launched a web-based design tool enabling customers to create customized sensing elements tailored to their specific systems.
Also Read: https://webnewsaddiction.com/digikey-adds-arduino-uno-q-perfect-for-ai-edge-iot/
The inductive sensors operate using metallic targets with dual- or single-coil configurations, detecting absolute rotary, linear, or arc positions. Withstanding harsh conditions including temperatures from -40°C to 125°C, moisture, vibration, and electromagnetic interference, they are immune to stray magnetic fields and require no maintenance, ideal for motor drives, actuators, valves, and robotics applications requiring reliability and long-term stability.
All three models achieve high accuracy better than 0.1% of the full electrical scale. The RAA2P3226 and RAA2P3200 run at 600K RPM electrical speed with propagation delays under 100 ns, essential for high-speed motors. The RAA2P3226 supports up to 19-bit resolution and 0.01° absolute accuracy with dual coils, suitable for robotic precision. The RAA2P4200 is designed for low-speed uses like medical devices and power tools, while the RAA2P3200 targets high-speed motor commutation. Automatic calibration and linearization simplify their system integration.
Renesas plans to release automotive-grade IPS products RAA2P452x and RAA2P4500 later in the year, with the RAA2P452x providing ASIL D safety compliance for automotive applications when paired with Renesas MCUs. The external sensing components like transmitter and receiver coils present design challenges addressed by Renesas’ web-based Inductive Position Sensor Coil Optimizer tool, which automates coil layout, simulation, and tuning, reducing development barriers and accelerating design cycles.
This smart, customizable sensor IC family and its supporting tools position Renesas at the forefront of industrial sensing innovation.
“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. 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.
