E-L6258EP

Overview

The E-L6258EP is a dual full bridge motor driver realized in BCD technology, designed to drive both windings of a bipolar stepper motor or control two DC motors bidirectionally. It operates within a supply voltage range of 12V to 40V and delivers an output current of up to 1.2A per winding continuously, with peak start-up currents reaching 1.5A. The device features high-efficiency phase shift chopping for low current ripple and includes thermal protection that disables outputs if safe temperature limits are exceeded.

Feature Summary

• Integrates a dual DMOS full bridge power stage capable of sustaining 40V without external recirculation diodes
• Provides precision PWM control with four-quadrant current regulation suitable for microstepping applications
• Incorporates cross-conduction protection and TTL/CMOS compatible inputs for simplified interface

Applications

• Driving bipolar stepper motor windings
• Bidirectional control of DC motors
• Microstepping applications requiring precise current regulation

Procurement Notes

Verify the specific suffix against official STMicroelectronics documentation to confirm pinout and electrical characteristics. Ensure the PowerSO-36 package dimensions align with PCB layout requirements. Confirm RoHS compliance status through the manufacturer's datasheet rather than distributor summaries.

Selection Notes

Select this component when a fully integrated solution for bipolar stepper or dual DC motor control is required. It is suitable for designs needing high efficiency at low current levels due to phase shift chopping. Consider the 1.2A continuous current rating and 40V maximum voltage as primary constraints for load matching.

Part Context

This part belongs to the L6258E series of universal motor drivers manufactured by STMicroelectronics. It utilizes BCD technology to combine logic and power stages on a single chip. The series is characterized by its ability to handle high currents while maintaining low electromagnetic interference through advanced chopping techniques.

Replacement Considerations

Consult official substitution lists for equivalent dual full bridge drivers. Verify compatibility regarding operating voltage ranges, current capabilities, and package footprint before replacing.