Infineon's XENSIV™ stray field robust linear TMR sensors for highly accurate length measurement in industrial and consumer applications
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Update time : 2024-02-04 09:35:51
Infineon Technologies AG has combined its proven magnetic position sensor technology expertise with its proven linear tunneling magnetoresistive (TMR) technology to introduce the XENSIV™ TLI5590-A6W magnetic position sensor. The sensor is available in a wafer-level package for linear and angular incremental position detection. The semiconductor device complies with the JEDEC JESD47K standard for industrial and consumer applications and can be used as a replacement for optical encoders and decoders, especially for zoom and focus adjustment of camera positioning lenses.
The TLI5590 is a low magnetic field sensor that utilizes Infineon's TMR technology developed specifically for high-capacity sensor systems. As a result, the sensor is characterized by ultra-high sensitivity, low jitter and low power consumption. Compared to linear Hall sensors, TMR sensors offer better linearity, less noise and lower hysteresis. Its high signal-to-noise ratio and low power consumption enable cost-effective magnetic circuit designs with low power consumption. As a result, this new sensor is capable of accurate detection in the presence of rapid changes in orientation.The TLI5590 consists of two TMR Wheatstone bridges, where the TMR resistance depends on the direction and strength of the external magnetic field. Combined with multi-pole magnets, each bridge provides differential output signals, i.e. sine and cosine signals. These signals are further processed and can be used to measure relative position. The sensor is available in an extremely small 6-ball wafer-level package SG-WFWLB-6-3. The higher integration density enables the sensor to be downsized to support miniaturization and position detection in miniature systems.The TLI5590-A6W achieves ultra-high-precision precision measurements with accuracies greater than 10µm by using suitable linear or rotary magnetic encoders. With a maximum operating temperature of +125°C, the sensor is flexible enough to be used in a variety of industrial and consumer applications. It is also the sensor of choice for use in a variety of harsh environments due to its high temperature stability.
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