Texas Instruments Introduces New High-Precision Hall-Effect Sensor and Integrated Shunt to Simplify Current Sensing
【Lansheng Technology Information】Texas Instruments launched a variety of new current sensors on August 23 to help engineers simplify design and improve accuracy. Designed to operate over a wide common-mode voltage and temperature range, these new products include lower-drift isolated Hall-effect current sensors for high-voltage systems and eliminate the need for external shunt resistors for non-isolated voltage rails device current shunt monitor product line.
Texas Instruments' new EZShunt™ product family includes small, fully integrated current shunt monitors and the industry's highest precision 75A integrated shunt solution for non-isolated systems up to 85V and 75ARMS.
Highly accurate current measurements are increasingly required in high-voltage systems such as electric vehicle chargers and photovoltaic inverters, but the high drift of Hall-effect current sensors over their lifetime makes them often overlooked. The Hall-effect current sensor TMCS1123 features a higher reinforced isolation operating voltage of 1,100VDC, a maximum sensitivity error of ±0.75%, a drift of 50ppm/°C over temperature, and a drift of ±0.5% over lifetime %. With the high precision of the TMCS1123, designers can optimize system performance while simplifying design. The device's high accuracy and excellent stability over its lifetime eliminates the need for recalibration of the device, reducing costly and time-consuming maintenance.
Additionally, precise control of power conversion is critical to optimize system efficiency and protection. The TMCS1123 has a low propagation delay of 600ns and a bandwidth of 250kHz, enabling faster control loops while maintaining low noise for improved system efficiency.
Texas Instruments' new EZShunt family of current-sensing solutions simplifies designs by eliminating the need for external shunt resistors. The new product family offers a fully integrated current sensing solution that fits into a 1206 shunt resistor package, delivering the value of a discrete solution in the simplicity of a single chip.
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