特性
- Voltage supply: 3.3V±0.3V or 5.0V±0.5V
- Qualified for industrial applications operating from -40°C to +125°C
- Output interfaces: high-speed UART, ABI, step/dir, and I2C
- Rotational speed: up to 600K rpm, with less than 100ns propagation delay
- High-accuracy sensor with up to 19-bit resolution and 15-bit accuracy (integrated vernier)
- True power-on position information with ABI and step/dir
- On-axis and off-axis implementations support
- Automatic gain control (AGC) to compensate for air-gap variations
- Autocalibration and 16-point linearization for enhanced accuracy
- On-chip failure diagnostics
- External auxiliary sensor input
描述
The RAA2P3226 is a magnet-free, inductive position sensor IC designed for absolute rotary, linear, or arc position sensing in industrial applications. It operates on the principle of eddy currents, detecting the position of a simple metallic target that is moving above a set of coils, comprising one transmitter coil and two receiver coils.
Inductive sensing technology offers significant advantages over magnetic technology, including greater flexibility, easier system integration, and enhanced performance, reliability, and cost efficiency. As a result, it is becoming the preferred choice for a wide range of industrial applications.
产品参数
| 属性 | 值 |
|---|---|
| Function | Position Sensor |
| Resolution (bits) | 19 |
| Supply Voltage (V) | 4.5 - 5.5, 3.0 - 3.6 |
| Interface | I2C, ABI, Step/Dir, UART |
| Temp. Range (°C) | -40 to 125°C |
封装选项
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| TSSOP | 5.0 x 4.4 x 1.0 | 16 | 0.65 |
应用方框图
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微型 BLDC 伺服器
BLDC 伺服驱动功率高达 75W 的电机，具有精确、高效的集成控制功能。
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唱盘系统
这款唱盘系统采用低功耗 MCU 和 RIAA 前置放大器，可实现精确的电机和音频控制。
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其他应用
- Optical encoder replacement
- Magnetic encoder replacement
- Linear motor
- Robotics
- Medical applications
- Industrial automation