Toshiba has introduced a 40V/3.0A stepper-motor control IC that requires no external current-sense resistors. The TB67S508FTG stepper-motor controller has on-chip current sensing. As a result it can eliminate the effects of resistor-tolerance errors, ensuring greater accuracy (+/-5%) and uniformity, says the supplier. The transistors of the output bridge have very low on-resistance of 0.45Ω (typical, ...
Read full article: Toshiba adds current sensor for accurate motor control
from Electronics Weekly https://www.electronicsweekly.com/news/toshiba-adds-current-sensor-accurate-motor-control-2017-05/
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