1 Features
• AEC-Q100 qualified for automotive applications
– Temperature grade 0: -40°C to 150°C
• Functional Safety-Capable
– Documentation available to aid in functional
safety system design
• Programmable gain
• Fully differential output
• Fast Response
– Signal bandwidth: 250kHz
– Response time: 2.6μs
– Propagation delay: 0.7μs
– Overcurrent detection response: 500ns
• Operating supply range: 3V to 5.5V

2 Applications
• EV Traction Inverter
• Off-Highway Vehicle
• Solar Inverter

3 Description
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 fullscale
current levels that can exceed 1000A.