L6474 Datasheet PDF - STMicroelectronics

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