• Part: L6474
  • Description: Fully integrated microstepping motor driver
  • Manufacturer: STMicroelectronics
  • Size: 950.75 KB
L6474 Datasheet (PDF) Download
STMicroelectronics
L6474

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.

Key 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