Micronas – First ISO 26262 compliant Hall Switch Family
Micronas extends its Hall-effect sensor portfolio by the new HAL 15xy switch family, successor of the HAL 5xy family. The new sensors provide highest quality and reliability for a broad variety of automotive applications. Distributor Rutronik presents the sensor innovations at the Sensor + Test from June 3 to 5, 2014, at Nuernberg (hall 12, booth 466).
The new sensor family was developed for harshest environmental conditions from -40°C up to 150°C ambient temperature. As the first generation of ASIL A ready Hall-effect switches with a single-point fault metric greater than 60% according to the latest ISO 26262 standard, the HAL 15xy sensors fulfill enhanced functional safety requirements. They provide many new diagnostic features, allowing a deployment in ASIL A, B and higher classified automotive applications. For even more stringent security requirements, the HAL 15xy features an additional, unique power-on self-test. It can optionally be enabled for a full functional test of the sensors’ signal processing path and output before starting standard operation.
With HAL 15xy, the customer can choose from a 3-wire version with short-circuit protected open-drain output or a 2-wire version with current source interface as well as from a wide range of different temperature-compensated constant switching points. The HAL 15xy sensors in the particularly small SOT23 package feature a very low current consumption of only 1.6mA and a minimum supply voltage of 2.7V. They can be operated with a maximum supply voltage of 24V, provides an overvoltage protection capability of up to 40V and withstands ESD pulses up to 8kV.