Motor driver : L6474

The L6474 device, realized in analog mixed  signal technology, integrates a dual low R DS(on) DMOS full bridge with all power switches equipped with an accurate on-chip current  sensing circuitry suitable for non-dissipative  current control and overcurrent protections. 

Thanks to a new curr ent control, a 1/16  microstepping is achiev ed through an adaptive  decay mode which outp erforms traditional  implementations. 

All data registers, including those used to set  analogue values (i.e.: current control value, current protection trip point, deadtime, etc.) are sent through a standard 5 Mbit/s SPI. A very rich set of prot ections (thermal, low bus  voltage, overcurrent) makes the L6474 device  “bullet proof” as required by the most demanding  motor control applications.