XENSIV™ TLE4971 High Performance at Minimal Space
Wide bandgap current sensors for industrial and automotive applications
Used to measure both AC and/or DC currents, Infineon’s current sensors provide accurate and stable current measurement up to 120 A or 31mT respectively. Infineon’s magnetic current sensors include either an integrated current rail in the package for low currents or measure the magnetic field of an external current rail for medium to high currents. Their products are intended for use in 48 V as well as high voltage and/or wide bandgap applications such as traction inverters, industrial drives, photovoltaic inverters, or EV charging systems.
Infineon’s XENSIV™ family of high-precision coreless open-loop current sensors are less bulky, and cost less compared to core-based current sensors. Based on Infineon’s precise and stable Hall effect current sensor IC technology, the current sensor analog output signal is highly linear over temperature and lifetime. Due to lacking an iron core or a flux concentrator, the sensor signal shows neither hysteresis nor does it suffer from saturation.
The differential current sensor measurement with two Hall cells ensures high accuracy even in a noisy environment as with crosstalk from adjacent current lines or magnetic stray fields. System designers can program sensor sensitivity as well as threshold levels of the two dedicated overcurrent signals, thereby adapting them to individual requirements without any external components. The contactless current sensor IC also provides a warning signal in case of over- or under-voltage conditions for the supply voltage.
Applications
- On board charger (OBC)
- Electrical drives (up to 690V)
- Auxiliary drives
- Photovoltaic inverter
- EV chargers
- General purpose inverters
- Power supplies
Summary of Features
- Minimal insertion resistance 220 μΩ & inductance <1 nH
- High dynamic range
- High peak current
- Market leading thermal performance
- Fast over current detection (OCD)
- Small size
- AEC-Q100 grade 1 qualified
Benefits
- Ultra-low power loss due to minimal resistance of current rail
- Reliable current measurement over lifetime (no re-calibration)
- Functional isolation for high-voltage application
- Easy and compact package
