L6258EX

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PWM-controlled, high-current DMOS universal motor driver

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Product overview

Description

L6258EX is a dual full bridge for motor control applications realized in BCD technology, with the capability of driving both windings of a bipolar stepper motor or bidirectionally control two DC motors.

L6258EX and a few external components form a complete control and drive circuit. It has high efficiency phase shift chopping that allows a very low current ripple at the lowest current control levels, and makes this device ideal for steppers as well as for DC motors.

The power stage is a dual DMOS full bridge capable of sustaining up to 40V, and includes the diodes for current recirculation.The output current capability is 1.5A per winding in continuous mode, with peak start-up current up to 2A. A thermal protection circuitry disables the outputs if the chip temperature exceeds the safe limits.

  • All features

    • TTL/CMOS compatible inputs
    • No need for recirculation diodes
    • Thermal shutdow
    • Able to drive both windings of a bipolar stepper motor or two DC motors
    • Wide voltage range: 12V to 40V
    • Output current up to 1.5A each winding
    • Precision PWM control
    • Cross conduction protection
    • Four quadrant current control, ideal for microstepping and DC motor control

Circuit Diagram

EDA Symbols, Footprints and 3D Models

STMicroelectronics - L6258EX

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Longevity Commitment Longevity Starting Date Material Declaration**
E-L6258EX
Active
PowerSO 36 Industrial Ecopack2 - -
E-L6258EXTR
Active
PowerSO 36 Industrial Ecopack2 - -

E-L6258EX

Package:

PowerSO 36

Material Declaration**:

PDF XML

Marketing Status

Active

Package

PowerSO 36

Grade

Industrial

RoHS Compliance Grade

Ecopack2

E-L6258EXTR

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.

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E-L6258EX

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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