BD6389FM-E2

Overview

The BD6389FM-E2 is a bipolar stepper motor driver from ROHM Semiconductor, designed for high performance and reliability. It operates on a single power supply ranging from 10 V to 28 V, with a maximum load voltage of 36 V. The device delivers an output current of up to 2.2 A and features low Rds(on) DMOS technology. It supports step resolutions of 1, 1/2, and 1/4 steps, with selectable mix decay functions. Key protection circuits include overcurrent (OCP), temperature shutdown (TSD), undervoltage lockout (UVLO), and overvoltage lockout (OVLO). The component is housed in a 36-HSOP-M package.

Feature Summary

• Integrates full control and power stages for bipolar stepper motors
• Supports quarter-step resolution and external DAC micro-stepping
• Includes comprehensive protection against overcurrent, overheating, and voltage anomalies

Applications

• General purpose stepper motor control systems
• Industrial automation equipment requiring precise motion control
• Office automation devices such as printers and scanners

Procurement Notes

Verify the part status carefully before procurement, as this component is marked as Not Recommended for New Designs (NRND). Confirm that existing inventory meets project requirements, as future availability may be limited. Ensure compatibility with the 36-HSOP-M package dimensions and thermal characteristics during integration. Check RoHS compliance details if required by specific environmental regulations.

Selection Notes

Select this driver for applications requiring a single-supply bipolar stepper motor solution with integrated protection. It is suitable where space efficiency is critical due to its compact HSOP-M package. Consider the 2.2 A current rating and 10-28 V operating range to ensure it matches the motor specifications. Evaluate the need for mix decay functionality and quarter-step support in the control algorithm design.

Part Context

This component belongs to the BD6389FM series, which are high-performance stepping motor drivers known for high reliability. The series is engineered to handle demanding industrial environments while maintaining precise motor control. The BD6389FM-E2 variant specifically integrates advanced protection features and flexible step resolution options within a robust DMOS architecture.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.