L6258EX Datasheet PDF - ST Microelectronics

●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.

●Key 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