Description

The L6474 device, realized in analog mixed signal technology, integrates a dual low RDS(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 current control, a 1/16 microstepping is achieved through an adaptive decay mode which outperforms traditional implementations.

Features

• Operating voltage: 8 - 45 V

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

• Low RDS(on) power MOSFETs

• Programmable power MOS slew rate

• Up to 1/16 microstepping

• Current control with adaptive decay

• Non-dissipative current sensing

• SPI interface

• Low quiescent and standby currents

• Programmable non-dissipative overcurrent protection on all power MOS

• Two-level overtemperature protection

Applications

• Bipolar stepper motor