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. These support protection of the power circuitry. Galvanic isolation is provided due to 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 are not present in the Infineon open loop, core-less sensors principle. The smart current rail design (double U-shape) combined with a differential signal sensing makes the current sensor robust against stray fields.
Features
Measurement up to 70 ARMS at 690 VRMS within ±120 A FSRTypical error at 25°C < 2 percentCurrent rail resistance specified at 225µΩ typicalAnalog output signal with 120kHz bandwidthFast overcurrent detection up to 2 x IFSR (typ. response time 1µs)
Applications
Industrial inverter and drives up to 690 VRMSBattery managementPhotovoltaic invertersPower supplies
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