STMicroelectronics AN1794 PractiSPIN Evaluation System Configuration Guide

About this manual

The PractiSPIN evaluation system is designed to test and demonstrate several STMicroelectronics motor driver integrated circuits. The system consists of a Graphical User Interface (GUI) running on an IBM-PC under Windows, a common ST7-based interface board, and device-specific target boards that connect via a standard 34-pin ribbon cable.

What's inside

• System overview
• Starting practiSPIN
• Stepper motor drive
• DC motor drive
• BLDC motor drive
• EVAL6205N board configuration
• EVAL6206N board configuration
• EVAL6208N board configuration

Specifications

Frequently asked questions

How do you calibrate the current setting in the system?

Calibration is a two-step process: first null out the offset by adjusting R18, then set the maximum current using the Vref potentiometer.

What types of motors can the PractiSPIN system drive?

The software can operate the device to drive a stepper motor, one or two DC motors, or a brushless DC (BLDC) motor.

What is the required range for the user-supplied DC power supply?

The target PCB connects to a user supplied DC power supply generally in the range of 12 to 48 Vdc.

What is the typical reference voltage applied when potentiometers are set to full scale?

If the potentiometers are set to full scale (clockwise) the reference applied to the input of the device is typically about 0.88 V.