Description
The TMR3109 is a contactless, high-precision, and high-speed magnetic rotary encoder sensor, which integrated with tunneling magnetoresistance (TMR) sensors and CMOS digital signal processing circuitry.
The TMR3109 senses the single pole-pair magnet rotation above the chip by TMR sensors, collects the rotating magnetic field signal, transmits it to the digital processing unit, and calculates the rotation angle.
The TMR3109 supports 3-wire and 4-wire SPI working modes, allowing the client MCU to read 23-bit absolute position information through the SPI protocol.
Auto-calibration is available for the TMR3109 to compensate non-linearities caused by imperfect installation.
SOP8
Features and Benefits
Tunneling magnetoresistance (TMR) technology Supply voltage: 3.3 V to 5 V
Supports 0° to 360° absolute angle detection Supply current: 10 mA (typical)
On and off axis measurements Available in SPI interface
Angular output delay < 2 μs Angular repeatability < ±0.05°
Speeds up to 40,000 RPM Auto-calibration function
Integrated automatic gain calibration function RoHS and REACH compliant
Applications
Contactless angular position measurement Brushless motor position sensing
Rotary speed sensing Close loop stepper system
Servo encoder
| MultiDimension Technology Co., Ltd. | |
|---|---|
| Product Category | Rotary Encoders |
| Product Number | TMR3109 |
| Product Name | 23-bit TMR Magnetic Rotary Encoder |
| Encoder Technology | Magnetic |
