Infineon Technologies TLE4972 XENSIV™ Magnetic Coreless Current Sensor

Infineon Technologies TLE4972 XENSIV™ Magnetic Coreless Current Sensor integrates an analog sensor signal proportional to the measured current and two fast overcurrent detection pins. The TLE4972 is robust against stray fields with the differential measurement principle and ideal for current EMC-prone measurements.

The Infineon TLE4972 digitally assisted analog provides superior stability over temperature and lifetime due to the proprietary digital stress and temperature compensation along with the robust Hall technology. The Magnetic Sensor's coreless Sensor design avoids adverse effects such as saturation and hysteresis, which are generally from sensors using iron cores for flux concentration.

According to AEC Q100 and ISO 26262 Safety Element, the sensor is qualified out of context for safety requirements up to ASIL B. These requirements support safety-critical applications like traction inverter and battery main switches.

The sensor is available in a PG-TDSO-16 package suitable for use in 48V and high voltage applications due to its external current rail concept.

Features

High accurate, scalable, DC and AC current sensing
Very low sensitivity error over temperature and lifetime
Excellent stability of offset over temperature and lifetime
High bandwidth provides fast response time and low phase delay
Differential sensor principle ensures superior magnetic stray field suppression
Two independent fast Over-Current Detection (OCD) pins with configurable thresholds enable fast protection mechanisms for power circuitry (0.7µs typical)
Full scale up to 31mT for high current applications

Small form factor enables low insertion resistance and less power loss
Configurable analog output operational modes (fully-differential, semi-differential or single-ended, uni- and bidirectional with or without ratiometricity)
Supply voltage 3.1V to 3.5V
ISO 26262 Safety Element out of Context for safety requirements up to ASIL B
Different package solutions for optimal system integration in different wiring schemes