AN4241 Datasheet, PDF (1/18 Pages) STMicroelectronics – The L6470 and L6472 are fully integrated motor drivers providing

AN4241
Application note
dSPIN™ family: fully integrated stepper motor drivers
By Enrico Poli
Introduction
The L6470 and L6472 are fully integrated motor drivers providing a complete stand-alone
solution for the high-end stepper motor applications. The devices can be controlled by a
host microcontroller through a fast SPI interface and are able to execute a complete set of
motion commands.
This document describes how the devices can be configured and gives some suggestions
about the operation and the application design.
The current control algorithm of the devices (the L6470 voltage mode driving and the L6472
advanced current control) is not investigated in this document.
For further details, please, refer to the respective application notes AN4144 "Voltage mode
control operation and parameter optimization" and AN4158 "Peak current control with
automatic decay adjustment and predictive current control: basics and setup".
January 2013
Doc ID 024193 Rev 1
1/18
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