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AMIS-30521

ON Semiconductor
Part Number AMIS-30521
Manufacturer ON Semiconductor
Description Micro-Stepping Motor Driver
Published Nov 4, 2009
Detailed Description AMIS-30521, NCV70521 Micro-Stepping Motor Driver Introduction The AMIS−30521/NCV70521 is a micro−stepping stepper motor...
Datasheet PDF File AMIS-30521 PDF File

AMIS-30521
AMIS-30521

Overview
AMIS-30521, NCV70521 Micro-Stepping Motor Driver Introduction The AMIS−30521/NCV70521 is a micro−stepping stepper motor driver for bipolar stepper motors.
The chip is connected through I/O pins and a SPI interface with an external microcontroller.
The AMIS−30521/NCV70521 contains a current−translation table.
It takes the next micro−step depending on the clock signal on the “NXT” input pin and the status of the “DIR” (= direction) register or input pin.
The chip provides a so−called “Speed and Load Angle” output.
This allows the creation of stall detection algorithms and control loops based on load−angle to adjust torque and speed.
It is using a proprietary PWM algorithm for reliable current...


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