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High Voltage Intelligent Battery Shunt Sensor with CAN-FD Interface

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The HV-IBSS-CANFD is a reference design that showcases an isolated current and voltage measurement unit connected via CAN-FD. This design provides one current measurement channel and three voltage measurement channels. It also illustrates the effectiveness of our WSBE low TCR battery shunt technology and our CDMA high-precision, low-tracing-error voltage divider in minimizing measurement variations over temperature. Depending on the shunt used, the design can measure continuous currents of up to 1,826 A (with a 5-second overload of 9,000 A) and voltages of up to 1,200 V at a rate of 100 Hz.

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The HV-IBSS-CANFD is a reference design that showcases an isolated current and voltage measurement unit connected via CAN-FD. This design provides one current measurement channel and three voltage measurement channels. It also illustrates the effectiveness of our WSBE low TCR battery shunt technology and our CDMA high-precision, low-tracing-error voltage divider in minimizing measurement variations over temperature. Depending on the shunt used, the design can measure continuous currents of up to 1,826 A (with a 5-second overload of 9,000 A) and voltages of up to 1,200 V at a rate of 100 Hz.

Reference Design Files

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Datasheet

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Functional Block Diagram

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Features

Low TCR shunt resistor (down to < ± 10 ppm)

Voltage up to 1415 V

24-bit analog-digital converter

9 V to 40 V power supply

Low thermal EMF (as low as < 1.25 μV/°C)

Very low inductance (< 5 nH)

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