Description

The L6472 device, realized in 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 RDS(on) DMOS full bridge with all of the power switches equipped with an accurate on-chip 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, easily programmed through a dedicated register set.

Features

? Operating voltage: 8 - 45 V

? 7.0 A output peak current (3.0 A r.m.s.)

? Low RDS(on) power MOSFETs

? Programmable speed profile

? Programmable power MOSFET slew rate

? Up to 1/16 microstepping

? Predictive current control with adaptive decay

? Non dissipative current sensing

? SPI interface

? Low quiescent and standby currents

? Programmable non dissipative overcurrent protection on all power MOSFETs

? Two levels of overtemperature protection

Applications

? Bipolar stepper motor

L6472PD屬于集成電路（IC） > 電機(jī)驅(qū)動(dòng)器，控制器。意法半導(dǎo)體（ST）集團(tuán)制造生產(chǎn)的L6472PD電機(jī)驅(qū)動(dòng)器，控制器產(chǎn)品屬于電機(jī)驅(qū)動(dòng)器和控制器電源管理集成電路 (PMIC) 系列，可用于控制或操作從某電源施加到電機(jī)或相關(guān)機(jī)電執(zhí)行器的電源。所實(shí)現(xiàn)的具體功能和特性集根據(jù)預(yù)期負(fù)載和預(yù)期應(yīng)用的特性有很大差異，范圍從用于有刷電機(jī)的簡(jiǎn)單開環(huán)速度控制到基于步進(jìn)電機(jī)的高級(jí)閉環(huán)運(yùn)動(dòng)控制。