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Automotive Product Finder Magazine | TDK launches linear Hall-effect sensor with SENT output
TDK launches linear Hall-effect sensor with SENT output
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TDK Corporation has expanded its Micronas linear Hall-effect sensor portfolio with the programmable HAL 1890 supporting the latest Single Edge Nibble Transmission (SENT) protocol according to SAE J2716 Rev. 4. The HAL 1890 now comes with digital output signal supervision and is as small, robust and cost-effective as the already existing HAL 188x variants. The HAL 1890 is an optimal system solution to measure small angles of up to 90° or linear displacements of a few millimetres in harsh environments. For example, it may be used as a gear position detection sensor in dual-clutch automatic transmission or as a steering torque sensor for industrial or recreational vehicles. Start of production is planned for the second half of 2019.
The sensor supports various SENT data frame formats (H.2 and H.4) as well as error signal transmission on fast and slow channels. Several programmable output signal clamping levels extend the error signaling capabilities to indicate various fault conditions, such as under/overvoltage, under/overflow of the signal path and overcurrent. The signal path of the HAL 1890 enables flexibility via external programming: major characteristics, like magnetic-field range, sensitivity, offset, etc. are programmable in non-volatile memory.
Linear Hall Effect Sensor
Single Edge Nibble Transmission
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