Automotive-grade current sensing with ±11.25A range
The TMCS1108A3BQDRQ1: This makes it suitable for under-hood or engine-bay current monitoring where ambient temperatures exceed 105°C. It senses AC or DC current bidirectionally up to ±11.25 A, outputting a ratiometric voltage proportional to the sensed current. The sensitivity is 200 mV/A, meaning a 5 A load produces a 1 V output shift from the zero-current reference. The 80 kHz bandwidth and 6.5 µs response time capture fast transients like motor inrush or short-circuit events, while the ±0.5% linearity keeps the transfer function accurate across the full range without external calibration.
8-SOIC package and supply integration
The ratiometric output tracks the supply voltage — if Vcc drifts, the output scales proportionally. A precision reference on the ADC side or a regulated supply rail maintains measurement accuracy.