Fast Stray-Field Robust Motor Position Sensor Family with Analog Output

HAL 302x is a fast angular position sensor family addressing the need for stray-field robust position sensing as well as the ISO 26262 compliance. This new sensor family features differential or single-ended sine and cosine analog outputs with passive wire-break detection working with pull-up or pull-down resistors. The rotation angle of a magnet can be calculated by an external A/D-converter and a microcontroller / ECU. This new family has three members (HAL 3020, HAL 3021 and HAL 3025). All members measure, based on Hall-effect technology, vertical magnetic-field components (B_z).
A key advantage of the HAL 3021 and HAL 3025 is their enhanced robustness against both static and dynamic mechanical tolerances, enabled by SixSense technology.

All devices are able to suppress external magnetic stray-fields by design by an array of Hall plates. Only a cost effective two-pole magnet in an end-of shaft configuration is required to measure the absolute angular position. The magnet can be placed above or below the sensor.

Major characteristics like sine and cosine gain, offset, (absolute) 0-angle, orthogonality and bandwidth can be adjusted using the integrated signal path by programming the non-volatile memory of HAL 302x. HAL 3020 and HAL 3021 are defined as Safety Element out of Context (SEooC) ASIL C ready according to ISO 26262:2018. HAL 3025 is defined as SEooC ASIL D ready according to ISO 26262:2018. HAL 302x contain on-board diagnostic features, such as overvoltage and undervoltage detection as well as wire-break monitoring. The devices are designed for operation in an ambient temperature range of –40 °C up to 150 °C. 
The sensors are available in the SOIC8 SMD package.