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: SPC 14-bit
- Single IC supports on-axis and off-axis rotation, linear and arc motion
- Automatic gain control (AGC) to compensate for air-gap variations
- Propagation delay: 2µs
- Rotational speed: up to 600,000 (electrical) rpm
- 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 RAA2P4524 is a high-speed, magnet-free inductive position sensor IC designed for absolute rotary position sensing in safety-critical automotive steering 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 four receiver coils.
This configuration enables precise and redundant measurement of two independent angles. The device supports the SPC interface, providing flexible and efficient communication with automotive ECUs.
With support for safety requirements up to ASIL-D, the RAA2P4524 is ideally suited for demanding applications such as steering angle sensors, torque-only sensors, and torque angle sensors.
Parameters
| Attributes | Value |
|---|---|
| Function | Position Sensor |
| Resolution (bits) | 14 |
| Supply Voltage (V) | 3.3 - 5 |
| Interface | SPC |
| 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 |
Application Block Diagrams
 | Isolated Motor Drive Power Stage Isolated GaN-based three-phase inverter motor drive power stage for high-performance motor applications up to 3kW. |
Additional Applications
- Steering Angle Sensors (SAS)
- Torque-Only Sensors (TOS)
- Torque Angle Sensors (TAS)