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L6474

easySPIN - fully integrated microstepping motor driver
  • active Active

The L6474, 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.

All data registers, including those used to set analogue values (i.e. current control value, current protection trip point, dead time, etc.) are sent through a standard 5 Mbit/s SPI.

A very rich set of protections (thermal, low bus voltage, overcurrent) makes the L6474 “bullet proof” as required by the most demanding motor control applications.

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Errata Sheet
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Datasheet

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
  • Two-level overtemperature protection

Design Resources

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Technical Documentation

Product Specifications

Description Version Size
pdf
DS8773: easySPIN – fully integrated microstepping motor driver
3.0 670 KB

Application Notes

Description Version Size
pdf
AN4158: Peak current control with automatic decay adjustment and predictive current control: basics and setup
1.1 811 KB
pdf
AN4290: dSPIN™, cSPIN™ and easySPIN™ family communication protocol
1.1 816 KB

Presentations & Training Material

Presentations

Description Version Size
pdf
STM32 F1 firmware library for easySPIN (L6474) motor driver - quick guide
1.0.0 383 KB

Related Tools and Software

Related Tools and Software

Part Number Description
EVAL6474H Stepper motor driver mounting the L6474
EVAL6474H-DISC easySPIN Discovery: development tool to explore easySPIN (L6474) motor driver
STSW-MOTOR006 easySPIN evaluation software
STSW-STM32056 STM32F1xx motor control firmware for easySPIN L6474
X-NUCLEO-IHM01A1 Stepper motor driver expansion board based on easySPIN™ L6474 for STM32 Nucleo

Publications and Collaterals

Flyer

Description Version Size
pdf
xSPIN Motor Drivers
936 KB

Sample & Buy

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Part Number Marketing StatusPackagePacking TypeOperating Temperature (min) Operating Temperature (max) Automotive GradeOrder From STUnit Price (US$)*
@ 1000
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
L6474HActiveHTSSOP28Tube-40150_-2.5Distributor reported inventory date: 2014-11-27
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA5631000
P&SOrder NowASIA/PACIFIC481
Farnell Element14Order NowEUROPE511
MOUSEROrder NowWORLDWIDE7771
Ecopack2PDF
XML
L6474HTRActiveHTSSOP28Tape And Reel-40150_-2.5No availability reported, please contact our Sales officeEcopack2PDF
XML
L6474PDActivePowerSO 36Tube-40150_-2.851Distributor reported inventory date: 2014-11-28
Distributor NameRegionStockMin. order
RS COMPONENTSOrder NowEUROPE3021
DIGIKEYOrder NowWORLDWIDE2931
MOUSEROrder NowWORLDWIDE1731
Ecopack1PDF
XML
L6474PDTRActivePowerSO 36Tape And Reel-40150_Free Samples2.851Distributor reported inventory date: 2014-11-28
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA600600
DIGIKEYOrder NowWORLDWIDE5501
Ecopack1PDF
XML

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
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