Infineon Technologies XENSIV™ - TLE4973 for automotive

TLE4973 is an accurate current sensor family for automotive use, particularly in electric vehicles. The sensors work at 5 V with an analog output as well as over current detection output. One digital control and diagnostic interface provides temperature readout, safety status readout, read / write programming access to internal EEPROM. The measurement range of up to +/-34 mT allows to sense currents up to 2 kA without the negative effects, e.g. hysteresis and saturation.

Key features

• Highly accurate coreless magnetic current sensor
• 5 V supply voltage
• Digital control and diagnostic interface
• Very fast overcurrent detection (typ. response time 0.7 µs)

Additional features

• Programmable sensitivity and overcurrent threshold
• ISO 26262-compliant development for safety requirements up to ASIL B

Applications

• Traction inverter (high voltage and 48 V)
• Auxiliary drives
• Battery main switch
• PV inverters
• Overload and over current monitoring