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- TI simplifies current sensing with the industry’s most accurate Hall-effect sensors and integrated shunt solutions
TI simplifies current sensing with the industry’s most accurate Hall-effect sensors and integrated shunt solutions
– Texas Instruments introduced new current sensors to simplify design and improve accuracy, including a low-drift isolated Hall-effect current sensor for high-voltage systems and a range of current shunt monitors that eliminate the need for an external shunt resistor.– The TMCS1123 Hall-effect current sensor features the highest reinforced isolation and highest accuracy over lifetime and temperature. TI’s EZShunt portfolio includes the smallest fully integrated current shunt monitor and the highest-accuracy 75-A integrated shunt solution.
Texas Instruments, a leader in advanced sensing technologies, today launched new current sensors to assist engineers in simplifying their designs while enhancing accuracy. These products are designed for a wide range of common-mode voltages and temperatures. The new TMCS1123 Hall-effect current sensor provides design simplicity and precision for high-voltage systems, demonstrating the industry’s top reinforced isolation and highest accuracy over lifetime and temperature.
For nonisolated systems up to 85 V and 75 ARMS, TI’s new EZShunt portfolio includes the smallest fully integrated current shunt monitor and the industry’s highest-accuracy 75-A integrated shunt solution. Jason Cole, business unit manager, said, “These new products highlight how the breadth of our sensing technologies address this design challenge for a variety of systems. Take the TMCS1123, for example; its high accuracy and low propagation delay enable designers to now use Hall-effect sensors in high-voltage systems where they couldn’t before – and that opens the door to reduce system cost and size.”
The need for highly accurate current measurements in high-voltage systems such as electric vehicle chargers is growing. The TMCS1123 Hall-effect current sensor features a maximum sensitivity error of ±0.75% with 50 ppm/°C drift over temperature and ±0.5% drift over lifetime. It also has low propagation delay of 600 ns and bandwidth of 250 kHz, enabling faster control loops while keeping noise low to help increase system efficiency.
TI’s new EZShunt portfolio removes the need for an external shunt resistor, providing a fully integrated current-sensing solution that fits within a 1206 shunt resistor footprint. The portfolio offers both cost-optimized and high-accuracy options, featuring drift as low as 25 ppm/°C. The INA700 is the smallest integrated current shunt monitor, enabling engineers to reduce the size of their current-sensing solution by up to 84%. The portfolio also includes the INA781, the highest-accuracy 75-A integrated shunt solution, which supports common-mode voltages up to 85 V.
These new Hall-effect and EZShunt current-sensing solutions from TI demonstrate the company’s dedication to helping engineers sense the world more accurately. The TMCS1123 Hall-effect current sensor and EZShunt products are available now in preproduction quantities.
These advancements from Texas Instruments will enhance the accuracy and efficiency of power management in electric vehicles, contributing to overall performance improvements in the industry.