Hall-effect current transducer for contactless AC/DC measurement in automotive and industrial applications

The CUR 3105 from Micronas can be perfectly adapted to contactless current sensing applications by selecting the magnetic field range, by programming the required output characteristics and by choosing the suitable package.

Freiburg, May 11, 2010 – Micronas (SIX Swiss Exchange: MASN), a leading manufacturer and supplier of innovative and application-specific sensor and IC system solutions for automotive electronics, presents its Hall-effect transducer CUR 3105.

The CUR 3105 targets applications, such as battery monitoring e.g. in hybrid / electrical cars, DC-DC converters, start-stop-systems or metering systems.

In combination with a flux concentrator the CUR 3105 is able to measure currents in the milliampere range. Currents in the hundred ampere range can be measured without flux concentrator using special conductor designs.

The CUR 3105 is able to measure currents with a bandwidth of up to 1 kHz. The operating magnetic field range can be adjusted from ±30 to ±100 mT. Various programmable parameters can be set to adapt the output characteristics which are stored in the highly reliable on-chip EEPROM.

To meet all the different assembly requirements, the CUR 3105 is available in a SOIC8 package and in a solderable and weldable TO92UT package. A wide temperature range from Tj -40 to 170 °C, open-circuit detection, over- and undervoltage detection complete the characteristics of the CUR3105.

Engineering samples will be available in July 2010 and qualified samples in December 2010.

Micronas will present the CUR3105 at the Sensor+Test trade fair in Nuremberg, Germany, (booth 12-302) from May 18 to 20, 2010, and at the Sensors Expo & Conference in Chicago, USA, (booth 715) from June 7 to 9, 2010.