Automotive current sense for shunt monitoring
The STMicroelectronics TSC1031IYPT is a single-channel current sense amplifier qualified to AEC-Q100, built for precision shunt-resistor monitoring in automotive and industrial environments. The 700 kHz bandwidth and 0.6 V/µs slew rate are enough to track motor-phase current and DC/DC inductor waveforms, though not fast-switching GaN edges.
The 700 kHz -3 dB bandwidth sets the usable frequency for current measurement. In a motor drive PWM at 20 kHz, you get clean replica of the average current with good ripple content. For a 500 kHz switching regulator, the output will show significant attenuation — you are measuring the DC component, not the switching ripple. The 0.6 V/µs slew rate matches that bandwidth; expect about 1.5 µs settling to 1% for a full-scale step. That is fine for overcurrent detection in a 48 V automotive load dump, but not for cycle-by-cycle peak current limiting in a high-frequency converter.
Housed in an 8-TSSOP (4.40 mm width) with surface-mount termination, the TSC1031IYPT is a standard footprint for automated assembly.
It is a current-production part, qualified to AEC-Q100, and available through independent distribution.