MultiDimension TMR3109
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.DESCRIPTION
Auto-calibration is available for the TMR3109 to compensate non-linearities caused by imperfect installation.FEATURES AND BENEFITS
●●Tunneling magnetoresistance (TMR) technology●●Supply voltage: 3.3 V to 5 V
●●Supply current: 10 mA (typical)
●●Supports 0° to 360° absolute angle detection
●●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 & REACH compliant
APPLICATIONS
●●Contactless angular position measurement●●Brushless motor position sensing
●●Rotary speed sensing
●●Close loop stepper system
●●Servo encoder SOP8 MultiDimension Technology Co., Ltd. 01 TMR3109 23-bit TMR Magnetic Rotary Encoder Selection Guide Part Number (*) Output Interface Supply Voltage Operating Temperature Package Packing Form TMR3109P SPI 3.3 V to 5 V -40 °C to 125 °C SOP8 Note: * Please contact MDT local sales representative for more model’s information.