ST EVL6472 User Manual

UM3317
User manual
Stepper motor driver evaluation board based on the L6472
Introduction
The EVL6472 is a stepper motor driver evaluation board based on the L6472.
It provides an affordable and easy-to-use solution to drive a stepper motor in your application.
The L6472 device, created using analog mixed signal technology, is an advanced fully integrated solution suitable for driving
two-phase bipolar stepper motors with microstepping. It integrates a dual low R DMOS full bridge with an accurate on-chip
dsON
current sensing circuitry suitable for non dissipative current control and overcurrent protection. Thanks to a new current control,
a 1/16 microstepping is achieved through an adaptive decay mode which outperforms traditional implementations. The digital
control core can generate user-defined motion profiles with acceleration, deceleration, speed or target position, which are easily
programmed through a dedicated set of registers. All application commands and data registers, including those used to set
analog values (that is: current control value, current protection trip point, dead time, etc.) are sent through a standard 5-Mbit/s
SPI. A complete set of protections (thermal, low bus voltage and overcurrent) makes the L6472 device fully protected, as
required by the most demanding motor control applications.
The EVL6472 is compatible with the Arduino® UNO R3 connector and supports the addition of other boards which can be
stacked to drive up to three stepper motors.
Figure 1. EVL6472 board
UM3317 - Rev 1 - March 2024
www.st.com
For further information contact your local STMicroelectronics sales office.