E-L6258E View Datasheet(PDF) - STMicroelectronics

Part Name

Description

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E-L6258E

PWM controlled high current DMOS universal motor driver

STMicroelectronics 

L6258E

PWM controlled

high current DMOS universal motor driver

Not For New Design

Features

■ Able to drive both windings of a bipolar stepper

motor or two DC motors

■ Output current up to 1.2A each winding

■ Wide voltage range: 12V to 40V

■ Four quadrant current control, ideal for

microstepping and DC motor control

■ Precision PWM control

■ No need for recirculation diodes

■ TTL/CMOS compatible inputs

■ Cross conduction protection

■ Thermal shutdow

Description

L6258E 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.

L6258E 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.

PowerSO36

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 1.2A per winding in continuous mode,

with peak start-up current up to 1.5A. A thermal

protection circuitry disables the outputs if the chip

temperature exceeds the safe limits.

Table 1. Device summary

Order code

L6258E

(Replaced by L6258EX)

Package

PowerSO36

Packing

Tube

December 2007

Rev 8

This is information on a product still in production but not recommended for new designs.

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