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infineon0619Sensor + Test hall 1, 324 Stand

Infineon is the first semiconductor manufacturer to launch a monolithically integrated linear Hall sensor at the Sensor + Test trade fair, which has been developed completely in accordance with the ISO26262 safety standard for automotive applications:XENSIVE TLE4999I3"Enables the development of fault-tolerant systems that meet the highest level of functional safety (ASIL D) with just one device.

These include, for example, electric steering systems, electric throttle valve system and pedal applications. The ISO26262 standard requires that a system function properly even if a single error occurs, for example, a module fails. With the help of the TLE4999I3, uninterrupted operation is possible at the system level. The device consists of a single silicon, on which two independent Hall elements are located. Their signal paths are designed separately. Internal control mechanisms already carry out a plausibility check of the sensor data within the block. In addition, the linear Hall sensor provides the system with extensive status information.

In addition to functional safety, the TLE4999I3 offers very high magnetic sensitivity with a fault tolerance of less than 2%. The offset error drift of the main channel, also an important parameter for a magnetic sensor for determining the absolute position in a magnetic field, is a maximum of 100 μT. This makes it only half as high as comparable products. The values ​​of these parameters apply over the entire temperature range and product life.

The TLE4999I3 can be set to two magnetic ranges of ± 12,5 and 25 mT. These low values ​​allow the use of relatively small and therefore less expensive magnets. The device has a PSI5 communication interface.

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