Infineon Technologies TLI4971 XENSIV™ Magnetic Current Sensors
Infineon Technologies TLI4971 XENSIV™ Magnetic Current Sensors is a high-precision current sensor for bi-directional AC and DC measurements. The devices have an analog interface and two fast overcurrent detection outputs. The sensors support power circuitry protection. Galvanic isolation is provided due to the magnetic sensing principle. Infineon's monolithic Hall technology enables accurate and highly linear measurement of currents with a full scale up to 120A. Negative effects, like saturation and hysteresis, are commonly known from core-based sensor techniques and are not present in the Infineon open loop, core-less sensors principle. The smart current rail design (double U-shape) combined with differential signal sensing makes the current sensor robust against stray fields.
Features
- 70ARMS at 690VRMS within ±120A FSR
- <2% typical error rate at 25°C
- 225µΩ typical current rail resistance specified
- 120kHz bandwidth analog output signal
- 2 x IFSR fast overcurrent detection (typ. response time 1µs)
- Ultra-low power loss due to low resistance of current rail
- Reliable current measurement over lifetime (no re-calibration)
- Functional isolation for high-voltage application
- Easy and compact package allows high power density design
Applications
- Industrial inverter and drives up to 690VRMS
- Battery management
- Photovoltaic inverters
- Power supplies
- Overload or overcurrent detection in high-voltage power circuits
- White goods
- Power tools
- Robot applications
Block Diagram
Videos
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