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On Semi 公司的AMIS-30532-D是微步进的步马达驱动器,它通过I/O引脚与SPI接口和外接 MCU毗连,可用于双极步进马达控制. AMIS-30532-D包罗有电压稳压器,重置输出和看门狗重置.可编程峰值电流高达1.6A,和5V与3.3V MCU兼容.本京电港论坛文章先容AMIS-30532-D主要特点,方框架图,典范应用电路和所用元器件. The AMIS-30532 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. It has an on-chip voltage regulator, reset-output and watchdog reset, able to supply peripheral devices. The AMIS-30532 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. The AMIS-30532 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 AMIS-30532 is ideally suited for general-purpose stepper motor applications in the automotive, industrial, medical, and marine environment. With the on-chip voltage regulator it further reduces the BOM for mechatronic stepper applications. AMIS-30532-D主要特点: Dual H-Bridge for 2-Phase Stepper Motors Programmable Peak-Current up to 1.6 A Continuous (3.0 A Short Time) 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 Active Fly-Back Diodes Full Output Protection and Diagnosis Thermal Warning and Shutdown Compatible with 5 V and 3.3 V Microcontrollers Integrated 5 V Regulator to Supply External Microcontroller Integrated Reset Function to Reset External Microcontroller Integrated Watchdog Function 应用电路元件表: 详情请复制打开此衔接地址: |
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