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Home » NEWEST Products » New by Manufacturer » STMicroelectronics » STM L6472 dSPIN Microstepping Motor Drivers
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STMicroelectronics L6472 dSPIN Fully Integrated Microstepping Motor Drivers

STMicroelectronics L6472 dSPIN Fully
Integrated Microstepping Motor Drivers

STMicroelectronics' L6472 dSPIN Fully Integrated Microstepping Motor Driver, realized in analog mixed signal technology, is an advanced fully integrated solution suitable for driving two-phase bipolar stepper motors with microstepping. It integrates a dual low RDS(on) DMOS full bridge with all of the power switches equipped with an accurate on-chip current sensing circuitry suitable for non-dissipative current control and overcurrent protection. Thanks to a new current control, a 1/16 microstepping is achieved through an adaptive decay mode which outperforms traditional implementations. The digital control core can generate user defined motion profiles with acceleration, deceleration, speed or target position, easily programmed through a dedicated register set. A very rich set of protections (thermal, low bus voltage, overcurrent) makes the L6472 "bullet proof", as required by the most demanding motor control applications.

Features
  • Operating voltage: 8 - 45 V
  • 7.0 A output peak current (3.0 A r.m.s.)
  • Low RDS(on) power MOSFETs
  • Programmable speed profile
  • Programmable Power MOSFET slew rate
  • Up to 1/16 microstepping
  • Predictive current control with adaptive decay
  • Non-dissipative current sensing
  • SPI interface
  • Low quiescent and standby currents
  • Programmable non-dissipative overcurrent protection on all

  • Power MOSFETs
  • Two levels of overtemperature protection
Applications
  • Bipolar stepper motor

Additional Resources

Datasheet
L6472 Product Info
Block Diagram
Block Diagram

EVAL6472H Stepper Motor Demonstration Board

STMicroelectronics EVAL6472H Stepper Motor Demonstration Board is a fully integrated microstepping motor driver. In combination with the STEVAL-PCC009V2 communication board and the dSPIN evaluation software, the board allows the user to investigate all the features of the L6472 device. In particular, the board can be used to regulate the L6472 parameters in order to fit application requirements. The EVAL6472H supports the daisy chain configuration making it suitable for the evaluation of the L6472 in the multi-motor applications.


Features:
  • Voltage range from 8 V to 45 V
  • Phase current up to 3 Ar.m.s.
  • SPI with daisy chain feature
  • SW input
  • FLAG and BUSY LED indicators
  • Adjustable supply voltage compensation
  • Suitable for use in combination with STEVALPCC009V2
STMicroelectronics EVAL6472H Stepper Motor Demonstration Board

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EVAL6472H-DISC dSPIN Discovery Development Tool

STMicroelectronics EVAL6472H-DISC dSPIN Discovery Development Tool is a low cost development tool to explore the dSPIN (L6472) motor driver. An ideal starter-kit for both beginners and experienced users, it is autonomous and can be used with a software interface or with a custom firmware thanks to the embedded microcontroller. Through the available GUI the user can easily set the full configuration of application parameters. As a “Plug and Play” tool it offers high motor control flexibility thanks to the wide operating voltage range from 8V to 45V and the current capability up to 3Arms. It is equipped with LED indicators for specific ready, busy, error warning.


Features
  • STMicroelectronics® patented advanced current control
  • Fully autonomous solution embedding an STM32™ MCU and the L6470H stepper motor driver
  • Compatible with SPIN family evaluation software
  • Wide voltage range from 8V to 45V
  • High phase current up to 3Arms
  • Footprint for external resonator or crystal
  • Switch motor input control
  • Keys start/left - stop/right - reset
  • Ready, busy, error LED indicators
  • Spare LED indicators for specific design
  • Adjustable supply voltage compensation
  • Up to 1/16 microstepping
STMicro EVAL6472H-DISC dSPIN Discovery Development Tool
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  • STMicroelectronics
  • Power Management
  • Semiconductors|Integrated Circuits|IC-Power Management