Xensiv TLE4971 current sensor goes beyond automotive, says Infineon

The latest addition to Infineon Technologies’ current sensor portfolio is the Xensiv  TLE4971. The 3.3V devices are the next generation of TLI4971 devices available in a small PG-TISON-8-5 package with an integrated rail and available in 25, 50, 75 and 120A pre-programmed current ranges. Its compact design means it is suitable for automotive use including on-board chargers (OBC), high voltage auxiliary drives and charging applications. It is also suitable for industrial applications including DC chargers for electric vehicles, industrial drives, servo drives and PV inverters, added Infineon.

The Xensiv TLE4971 devices offer a precise magnetic current sensing based on proprietary temperature and stress compensation, without the negative effects of magnetic cores cased from hysteresis or saturation effects, explained the company. The differential sensing principle means no core or shielding is required to protect against stray fields. The sensors are also suitable for applications using wide-bandgap materials such as Gallium Nitride (GaN) and Silicon Carbide (SiC). The integrated EEPROM allows users to customise the sensor’s over-current detection (OCD) values and de-glitch filters for different use cases.

Minimum insertion resistance is 220 microΩ and inductance is less than one nH, which means that the system losses decrease to enable higher efficiency and accuracy, said Infineon. The TISON package enables high dynamic range, high surge current and what Infineon described as market-leading thermal performance. The devices are fully qualified to AEC-Q100 Grade 1 for automotive applications up to 125 degrees. To support industrial applications, all sensor variants are available as standard and UL certified versions.

The Infineon Xensiv TLE4971 current sensor family is available now. Visitors to electronica 2022 (15 to 18 November) in Munich, Germany will be able to see the sensors at the Infineon Technologies’ stand in Hall C3-502.


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