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AMIS-30521 - Micro-stepping Motor Driver

Description

Table 2: Pin List and Description Name Pin DO 31 www.DataSheet4U.com VDD 32 GND 1 DI 2 CLK 3 NXT 4 DIR 5 ERRB 6 SLA 7 CPN 9 CPP 10 VCP 11 CLR 12 CSB 13 VBB 14 MOTYP 15, 16 GND 17, 18 MOTYN 19, 20 MOTXN 21, 22 GND 23, 24 MOTXP 25, 26 VBB 27 / 8, 28, 30 TST0 29 Description SPI data output Logic Suppl

Features

  • Dual H-Bridge for 2-phase stepper motors Programmable peak-current up to 1.6A using a 5-bit current DAC On-chip current translator SPI interface Speed and load angle output Seven 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 Low EMC PWM with selectable voltage slopes Ac.

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Datasheet preview – AMIS-30521

Datasheet Details

Part number AMIS-30521
Manufacturer AMI SEMICONDUCTOR
File Size 2.36 MB
Description Micro-stepping Motor Driver
Datasheet download datasheet AMIS-30521 Datasheet
Additional preview pages of the AMIS-30521 datasheet.

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Full PDF Text Transcription

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AMIS-30521 Micro-stepping Motor Driver Data Sheet 1.0 Introduction The AMIS-30521 is a micro-stepping stepper motor driver for bipolar stepper motors. The chip is connected through I/O pins and an SPI interface with an external microcontroller. The AMIS-30521 contains a current-translation table and 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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