Not For New Design

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

November 2007

Rev 9

1/32

1

L6258

PWM controlled

high current DMOS universal motor driver

Features

motor or two DC motors

microstepping and DC motor control

Description

L6258 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.

L6258 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 34V, 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.

PowerSO36

Table 1.

Device summary

Order Code

Package

Packing

L6258

(Replaced by L6258EX)

PowerSO36

Tube

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