TI LAUNCHES INDUSTRY'S MOST ACCURATE HALL-EFFECT SENSORS AND INTEGRATED SHUNT SOLUTIONS

Texas Instruments (TI) debuted new current sensors to help engineers simplify their designs while improving accuracy.

The new TMCS1123 Hall-effect current sensor offers design simplicity and accuracy for high-voltage systems, featuring the industry’s highest 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 industry’s smallest fully integrated current shunt monitor and the industry’s highest-accuracy 75-A integrated shunt solution.

Achieve fast, accurate control in high-voltage systems with Hall-effect current sensors
The need for highly accurate current measurements in high-voltage systems such as electric vehicle chargers and solar inverters is growing, but Hall-effect current sensors have typically been overlooked given their high drift over a lifetime. The TMCS1123 Hall-effect current sensor features the highest reinforced isolation working voltage of 1,100 V_DC. The TMCS1123 also features a maximum sensitivity error of ±0.75% with 50 ppm/°C drift over temperature and ±0.5% drift over a lifetime. With this high accuracy, the TMCS1123 enables designers to optimize system performance while simplifying design. The high precision and stability over a lifetime remove the need to recalibrate equipment, reducing costly and time-consuming maintenance.

In addition, achieving precise control of power conversion is paramount for optimizing system efficiency and protection. The TMCS1123 features a low propagation delay of 600 ns and bandwidth of 250 kHz, which enable faster control loops while keeping noise low to help increase system efficiency.

Simplify and reduce system size with EZShunt technology
TI’s new EZShunt portfolio of current-sensing solutions simplifies designs by removing the need for an external shunt resistor. The portfolio provides a fully integrated current-sensing solution that fits within the footprint of a 1206 shunt resistor, offering the value of a discrete solution with the simplicity of a single chip.

The EZShunt portfolio offers both cost-optimized and high-accuracy options, featuring drift as low as 25 ppm/°C, in a variety of packages and shunt values. The INA700 is the industry’s smallest integrated current shunt monitor, enabling engineers to reduce the size of their current-sensing solution by as much as 84%. The portfolio also includes the INA781, the industry’s highest-accuracy 75-A integrated shunt solution, which supports common-mode voltages up to 85 V.

TI’s new Hall-effect and EZShunt current-sensing solutions build on the company’s commitment to helping engineers sense the world more accurately.