Description
The TMR3110 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 TMR3110 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 TMR3110 supports 3-wire and 4-wire SPI working modes, allowing the client MCU to read 23-bit absolute position information through the SPI protocol. Additionally, the chip also provides a 12-bit resolution PWM output interface, with the PWM frequency configurable in four levels according to customer requirements.
It is able to output A/B phase programmable incremental position signal with 1 to 4096 pulse and programmable zero-point (Z phase) signal. TMR3110 also provides inverted UVW output, analog and PWM signals, with rotational speed up to 40,000 RPM.
The TMR3110 can self-calibrate to compensate non-linearities caused by imperfect installation.
TSSOP16
Features and Benefits
Tunneling magnetoresistance (TMR) technology Supply voltage: 3.3 V to 5 V
Available in SPI, ABZ, UVW and PWM interfaces Supply current: 10 mA (typical)
Programmable A/B/Z interpolation factors from ×1 to ×4096 Speeds up to 40,000 RPM
Programmable inverted UVW output resolution in 1 to 32 pole-pair Angular output delay < 2 μs
Integrated automatic gain calibration function Angular repeatability < ±0.05°
Integrated EEPROM rewritable over 1000 cycles On and off axis measurements
Supports 0° to 360° absolute angle detection Self-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. | |
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Product Category | Rotary Encoders |
Product Number | TMR3110 |
Product Name | 23-bit TMR Magnetic Rotary Encoder |
Encoder Technology | Magnetic |