Features
- Voltage supply: 3.3V±0.3V or 5.0V±0.5V
- AEC-Q100 Grade 0 qualified (-40°C to +160°C)
- ISO 26262 compliant, fulfilling FuSa requirements up to ASIL-D
- Output interfaces: SENT, SPI, UART, ABI, PWM, step/dir, and UVW
- Single IC supports on-axis and off-axis rotation, linear and arc motion
- Automatic gain control (AGC) to compensate for air-gap variations
- Autocalibration and 16-point linearization for enhanced accuracy
- Overvoltage ±18V, reverse-polarity ±18V, ESD, and short-circuit protection features
- On-chip failure diagnostics
- External auxiliary sensor input
- Fully customizable sensing element design using the Renesas Inductive Position Sensor Coil Optimizer tool
Description
The RAA2P3500 is a magnet-free, inductive position sensor IC designed for absolute rotary, linear, or arc position sensing in automotive applications. It operates on the principle of eddy currents, detecting the position of a simple metallic target moving above a set of coils, consisting of one transmitter coil and two receiver coils.
This architecture enables precise and accurate position measurements, making it ideal for high-speed automotive systems such as HV traction motor, brake booster, belt starter, and electric power steering applications. Its robust, magnet-free design ensures reliable performance in harsh automotive environments, offering a durable and cost-effective alternative to traditional magnetic sensing technologies.
Parameters
| Attributes | Value |
|---|---|
| Function | Position Sensor |
| Resolution (bits) | 14 |
| Supply Voltage (V) | 3.3 - 5 |
| Interface | SPI, UART, UVW, Step/Dir, ABI, SENT, PWM |
| Temp. Range (°C) | -40 to 160°C |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| TSSOP | 5.0 x 4.4 x 1.0 | 16 | 0.65 |
Product Comparison
Applications
- Digital Resolver Replacement
- Traction Motor
- Belt Starter Generator
- Brake Booster
- Electric Power Steering
Knowledge Base
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Which inductive position sensor is best for high‑speed rotary applications?
... motors, brake booster, electrical power steering or any high‑speed applications, you should select either IPS2550 with high‑speed analog sin/cos output or RAA2P3500 with high‑speed digital interface, ideal when you prefer the sensor to deliver a processed digital angle directly, reducing ECU load and calibration effort ...
Mar 4, 2026 -
Do I need a dual‑channel product if my system is not ASIL?
... sensors are designed for redundancy, safety integrity, voting or cross‑checking in the ECU. If your system is non‑safety critical, a single‑channel device (RAA2P3500, RAA2P4500 or IPS2550) is typically sufficient and more cost‑effective. However, some customers still choose dual-channel for diagnostic coverage, system availability and/ ...
Mar 4, 2026 -
Should I choose an analog or a digital output sensor?
... ADC capability, you want maximum control over signal processing and/or you prefer direct sin/cos raw waveforms for custom algorithms. Chose digital (RAA2P3500, RAA2P4500, RAA2P4520/4524) when you want ready‑to‑use angle data in SPI/UART, SPC or any other digital format, you need ...
Mar 4, 2026
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