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NCV70521

ON Semiconductor
Part Number NCV70521
Manufacturer ON Semiconductor
Description Micro-Stepping Motor Driver
Published Dec 9, 2010
Detailed Description AMIS-30521, NCV70521 Micro-Stepping Motor Driver Introduction The AMIS−30521/NCV70521 is a micro−stepping stepper motor...
Datasheet PDF File NCV70521 PDF File

NCV70521
NCV70521

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 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 purp...


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