
Infineon Technologies
Description
TLI4971 is a high precision miniature coreless magnetic current sensor for AC and DC measurements with analog interface and two fast over-current detection outputs.
Infineons well-established and robust monolithic Hall technology enables accurate and highly linear measurement of currents with a full scale up to ±120A. All negative effects (saturation, hysteresis) commonly known from open loop sensors using flux concentration techniques are avoided. The sensor is equipped with internal self-diagnostic feature.
FEATUREs & Benefits
● Integrated current rail with typical 220µΩ insertion
resistance enables ultra-low power loss
● Less than 1nH parasitic inductance of integrated
current rail enables wide bandgap design
● Bandwidth of 240kHz enables wide range of
applications
● 8x8mm form factor
● Very low sensitivity error over temperature
● Galvanic functional isolation up to 1150V
● VISO 3500V RMS agency type-tested for 60 seconds
per UL1577
● Differential sensing principle
● Two independent ultrafast Over Current Detection
outputs
Target Applications
The TLI4971 is suitable for AC as well as DC current measurement applications:
● Electrical drives
● General purpose inverters
● PV inverters
● Chargers
● Current monitoring
● Overload and over-current detection