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, ...
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