AEC-Q100 qualified, programmable coreless high-precision Hall-effect current sensor

The TMCS2100-Q1 is a precision multi-sensor coreless current sensing

device, designed specifically for the demanding requirements of high voltage,

high-current multi-phase systems. This measurement design meets the performance

requirements of significantly larger, heavier and more expensive magnetic core-based

products while achieving a space-saving footprint, without the requirement to modify

or notch the high current carrying bus bars.

AC or DC current flows through a

busbar generating a magnetic field. The integrated on-chip Hall-effect sensors

measure the magnetic field. Typically, differential coreless current sensing devices

are highly susceptible to changes in magnetic field strength due to system

manufacturing tolerances, displacement and vibration. The TMCS2100-Q1 utilizes a TI

proprietary algorithm to significantly reduce the effect of displacement.

Additionally, active frequency compensation is available for eddy current-induced

amplitude errors.

The TMCS2100-Q1 characterization process minimizes phase-to-phase

magnetic crosstalk error and enables measurement errors below 0.5% at full-scale

current levels that can exceed 1000A.