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L6472
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Education Design Win
Fully integrated microstepping motor driver with motion engine and SPI

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Product overview

Description

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.

  • All 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
    Read more Read less

Circuit Diagram

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STMicroelectronics - L6472

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Longevity Commitment Longevity Starting Date Material Declaration**
L6472H
Active
HTSSOP28 Industrial Ecopack2 15 2026-01-01T00:00:00.000+01:00
L6472HTR
Active
HTSSOP28 Industrial Ecopack2 15 2026-01-01T00:00:00.000+01:00
L6472PD
Active
PowerSO 36 Industrial Ecopack2 15 2026-01-01T00:00:00.000+01:00
L6472PDTR
Active
PowerSO 36 Industrial Ecopack2 15 2026-01-01T00:00:00.000+01:00

L6472H

Package:

HTSSOP28

Material Declaration**:

PDF XML
More Info

Marketing Status

Active

Package

HTSSOP28

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L6472HTR

Package:

HTSSOP28

Material Declaration**:

PDF XML
More Info

Marketing Status

Active

Package

HTSSOP28

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L6472PD

Package:

PowerSO 36

Material Declaration**:

PDF XML
More Info

Marketing Status

Active

Package

PowerSO 36

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L6472PDTR

Package:

PowerSO 36

Material Declaration**:

PDF XML
More Info

Marketing Status

Active

Package

PowerSO 36

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) 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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(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors

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