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AMIS-30522 - Micro-Stepping Motor Driver

Description

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4 Equivalent Schematics

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5 Thermal Resist

Features

  • Dual H.
  • Bridge for 2 Phase Stepper Motors.
  • Programmable Peak.
  • Current up to 1.2 A Continuous (1.5 A Short Time), Using a 5.
  • Bit Current DAC.
  • On.
  • Chip Current Translator.
  • SPI Interface.
  • Speed and Load.
  • Angle Output.
  • 7 Step Modes from Full.
  • Step up to 32 Micro.
  • Steps.
  • Fully Integrated Current.
  • Sense.
  • PWM Current Control with Automatic Selection of Fast and Slow Decay.

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Datasheet Details

Part number AMIS-30522
Manufacturer onsemi
File Size 336.10 KB
Description Micro-Stepping Motor Driver
Datasheet download datasheet AMIS-30522 Datasheet

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Full PDF Text Transcription

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AMIS-30522, NCV70522 Micro-Stepping Motor Driver Introduction The AMIS−30522/NCV70522 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−30522/NCV70522 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.
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