ROHM-STEPMO_EVK_203 ROHM

EVALUATION BOARD MANUAL Motor Driver Stepper Motor Driver IC EVK STEPMO EVK 20x ROHM Stepper Motor Driver IC Evaluation Kit based on Arduino/Genuino Platform Abstract EVK Key Specifications (Across Model Versions) This evaluation board manual describes the Input voltage range..8~42V usage of ROHMs stepper motor driver IC Maximum Output Current Range..........1A~2.5A evaluation kit (EVK) called STEPMO EVK 20x. Stepping Modes. ,,,, It is designed as a plug-in board (Shield) for popular Arduino microcontroller platform. This document provides guidelines to quickly setup the hardware and software for fast and easy stepper motor driver IC performance evaluation. Description of Supported ICs This EVK supports a variety of pin-compatible ROHM stepper motor driver ICs from standard, microstep, low voltage and high voltage families with CLK-IN (clock input) or PARA-IN (parallel input) control. They integrate PWM constant-current drive with adjustable decay ratio and the ability for full, half and microstepping. The ICs feature single supply operation by integrating the voltage regulator for the low power logic together with highly efficient DMOS output power stages. These do not require an internal charge pump so the motor drivers EVK Features achieve low EMI performance. The motor drivers Designed as plug-in Shield for Arduino platform integrate various protection functions such as Recommended: Arduino Uno Ghost Supply Prevention (GSP), Thermal Several model variants covering wide range of Shutdown (TSD), Over-Current Protection pin- compatible stepper driver ICs (OCP), Under / Over Voltage Lockout (UVLO / Support of bipolar or unipolar stepper motors OVLO) high ESD resistance and Pin Short Adjustable current limit Protection for robust and reliable operation. The Adjustable current decay mode ICs are housed in compact HTSSOP-B28 power Single supply operation packages. For further details, please also consult Stackable design to allow controlling two motors the relevant product datasheets at at the same time STEPMO EVK 20x Evaluation Board Manual Table of Contents 0. Cover Page...............................................................................................................................................................................1 Abstract ............................................................................................................................................................................. 1 Description of Supported ICs ............................................................................................................................................. 1 EVK Key Specifications (Across Model Versions) ............................................................................................................. 1 EVK Features .................................................................................................................................................................... 1 1. Safety Instructions .................................................................................................................................................................... 3 1.1 Warnings ............................................................................................................................................................................... 3 1.2 Instructions for Safe Use ....................................................................................................................................................... 3 2. Introduction ............................................................................................................................................................................... 4 2.1 Block Diagram ....................................................................................................................................................................... 4 2.2 Model Overview .................................................................................................................................................................... 5 3. Hardware Description ............................................................................................................................................................... 5 3.1 Schematic ............................................................................................................................................................................. 6 3.2 Bill of Materials ...................................................................................................................................................................... 8 4. Setup Instruction ....................................................................................................................................................................... 9 4.1 Hardware .............................................................................................................................................................................. 9 Master/Slave Mode ............................................................................................................................................................ 9 Current Limitation Value ................................................................................................................................................... 11 Current Decay Mode ....................................................................................................................................................... 12 Supply and Motor Connection ......................................................................................................................................... 13 Connection to Microcontroller Motherboard ..................................................................................................................... 14 4.2 Software .............................................................................................................................................................................. 15 Installation Procedure ...................................................................................................................................................... 15 Content of the Software Delivery Package ...................................................................................................................... 16 DEMO Sketch .................................................................................................................................................................. 16 Library function description / FAQ .................................................................................................................................... 17 www.rohm.com EUDC59-U-002 - Rev. 1.3 2/20 2016 ROHM Co., Ltd. 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