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L6472

Fully integrated microstepping motor driver with motion engine and SPI
  • active Active

The L6472 device, 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.

All application commands and data registers, including those used to set analog values (i.e.: current control value, current protection trip point, deadtime, etc.) are sent through a standard 5-Mbit/s SPI.

A very rich set of protections (thermal, low bus voltage, overcurrent) makes the L6472 device “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 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

Circuit Diagram

Design Resources

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Technical Documentation

Product Specifications

Description Version Size
pdf
DS8858: Fully integrated microstepping motor driver
5.0 1,262 KB

Application Notes

Description Version Size
pdf
AN4158: Peak current control with automatic decay adjustment and predictive current control: basics and setup
2.1 983 KB
pdf
AN4241: L6470 and L6472: fully integrated stepper motor drivers
2.0 413 KB
pdf
AN4290: L647x, L648x and powerSTEP01 family communication protocol
2.1 487 KB

User Manual

Description Version Size
pdf
UM1688: EVAL6470H, EVAL6470PD, EVAL6472H and EVAL6472PD: fully integrated microstepping motor drivers
2.0 6,087 KB
pdf
UM1692: EVAL6472H-DISC: fully integrated stepper motor driver based on the L6472 and STM32™
2.0 2,582 KB

Related Tools and Software

Related Tools and Software

Part Number Description
EVAL6472H-DISC L6472 Discovery: development tool to explore L6472 motor driver
stsw-spin004 firmware library dSPIN discovery
STSW-SPIN002 Evaluation software with graphical user interface for motor driver ICs (STSPIN)
STEVAL-PCC009V2 IBU Motor Control & IPS universal interface
EVAL6472H Fully integrated stepper motor driver based on the L6472
EVAL6472PD Fully integrated stepper motor driver mounting the L6472 in a high power PowerSO package

Publications and Collaterals

Flyer

Description Version Size
pdf
dSPIN Discovery
839 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**
L6472HActiveHTSSOP28Tube-40150_-3.4Distributor reported inventory date: 2016-02-08
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA9021000
AVNETOrder NowAMERICA3260
Farnell Element14Order NowEUROPE11
RS COMPONENTSOrder NowEUROPE431
DIGIKEYOrder NowWORLDWIDE10331
MOUSEROrder NowWORLDWIDE5861
Ecopack2PDF
XML
L6472HTRActiveHTSSOP28Tape And Reel-40150_Free Samples3.4Distributor reported inventory date: 2016-02-08
Distributor NameRegionStockMin. order
AVNETOrder NowAMERICA25000
DIGIKEYOrder NowWORLDWIDE53001
FUTUREOrder NowWORLDWIDE25002500
Ecopack2PDF
XML
L6472PDActivePowerSO 36Tube-40150_-3.8Distributor reported inventory date: 2016-02-08
Distributor NameRegionStockMin. order
AVNETOrder NowAMERICA3100
ARROWOrder NowEUROPE2480
Farnell Element14Order NowEUROPE151
RS COMPONENTSOrder NowEUROPE3651
RUTRONIKOrder NowEUROPE22231
DIGIKEYOrder NowWORLDWIDE6181
MOUSEROrder NowWORLDWIDE2131
Ecopack1PDF
XML
L6472PDTRActivePowerSO 36Tape And Reel-40150_Free Samples3.8Distributor reported inventory date: 2016-02-08
Distributor NameRegionStockMin. order
DIGIKEYOrder NowWORLDWIDE15791
MOUSEROrder NowWORLDWIDE3871
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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