L6470 Datasheet - STMicroelectronics

L6470 Fully integrated microstepping motor driver

The L6470 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 onchip current s.

L6470 Features

* Operating voltage: 8 - 45 V

* 7.0 A out peak current (3.0 A r.m.s.)

* Low RDS(on) Power MOSFETs

* Programmable speed profile and positioning

* Programmable power MOS slew rate

* Up to 1/128 microstepping

* Sensorless stall detection

* SPI interface

* Low quiesce

L6470_STMicroelectronics.pdf