L6474PD(2011) Datasheet PDF - STMicroelectronics

Description
The L6474, realized in analog mixed signal technology, integrates a dual low RDSon 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 RDSon 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

APPLICATION
■ Bipolar stepper motor