L6474

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Stepper motor driver with up to 16 microsteps with SPI and advanced current control

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Product overview

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.

All data registers, including those used to set analogue 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 L6474 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 Ar.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

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STMicroelectronics - L6474

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L6474H
Active
HTSSOP28 Industrial Ecopack2
L6474HTR
Active
HTSSOP28 Industrial Ecopack2
L6474PD
Active
PowerSO 36 Industrial Ecopack2
L6474PDTR
Active
PowerSO 36 Industrial Ecopack2

L6474H

Package:

HTSSOP28

Material Declaration**:

PDF XML

Marketing Status

Active

Package

HTSSOP28

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L6474HTR

Package:

HTSSOP28

Material Declaration**:

PDF XML

Marketing Status

Active

Package

HTSSOP28

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L6474PD

Package:

PowerSO 36

Material Declaration**:

PDF XML

Marketing Status

Active

Package

PowerSO 36

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L6474PDTR

Package:

PowerSO 36

Material Declaration**:

PDF XML

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.

Sample & Buy

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L6474H
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L6474PDTR
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L6474HTR
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L6474PD
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L6474H Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

L6474H

Operating Temperature (°C)

Min:

Max:

Distributor Name

Distributor reported inventory date:

L6474PDTR Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

L6474PDTR

Operating Temperature (°C)

Min:

Max:

Distributor Name

Distributor reported inventory date:

L6474HTR Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

L6474HTR

Operating Temperature (°C)

Min:

Max:

Distributor Name

Distributor reported inventory date:

L6474PD Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

L6474PD

Operating Temperature (°C)

Min:

Max:

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Distributor reported inventory date:

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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