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/Title (AMIS-30521 - Micro-stepping Motor Driver)
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2019-04-16T13:17:42-07:00
BroadVision, Inc.
2020-10-07T12:33:27+02:00
2020-10-07T12:33:27+02:00
Acrobat Distiller 18.0 (Windows)
application/pdf
AMIS-30521 - Micro-stepping Motor Driver
ON Semiconductor
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 control.
The AMIS−30521/NCV70521 is implemented in I2T100
technology, enabling both high voltage analog circuitry and digital
functionality on the same chip. The chip is fully compatible with the
automotive voltage requirements.
The 521 is ideally suited for general purpose stepper motor
applications in the automotive, industrial, medical and marine
environment. The AMIS−30521 is intended for use in industrial
applications. The NCV70521 version is qualified for use in
automotive applications.
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