BD63873EFV-E2

Overview

The BD63873EFV-E2 is a bipolar stepper motor driver from ROHM Semiconductor, designed for applications requiring precise motion control. It operates within a power supply voltage range of 19 V to 28 V and delivers a maximum output current of 1.0 A. The device features a CLK-IN interface for step and direction control. It is housed in a 28-pin HTSSOP-B package with an exposed pad for enhanced thermal dissipation. The component supports mixed decay functions and includes built-in protection circuits such as overcurrent and temperature protection.

Feature Summary

• Supports bipolar stepper motor control with CLK-IN interface
• Integrated mixed decay function for optimized current waveform control
• Built-in protection mechanisms including overcurrent, temperature, and under-voltage lockout
• Designed for single power supply input operation

Applications

• Precision positioning systems
• Industrial automation equipment
• Office automation devices

Procurement Notes

Verify the specific suffix E2 against the official datasheet to confirm pinout and electrical characteristics match the design requirements. Note that this component is marked as Not Recommended for New Designs; ensure existing inventory or lifecycle status aligns with long-term production plans before finalizing procurement.

Selection Notes

Select this driver when a 1.0 A output current and 28 V maximum supply voltage are sufficient for the target stepper motor. The CLK-IN interface simplifies control logic compared to parallel interfaces. Consider the thermal performance of the HTSSOP-B package and ensure adequate PCB copper area for heat dissipation given the exposed pad design.

Part Context

This part belongs to the BD6387xEFV series of stepping motor drivers. It shares functional similarities with other members like the BD63847EFV-E2 but differs in output current ratings and specific feature sets. The series emphasizes high reliability and compact packaging solutions for embedded motion control applications.

Replacement Considerations

Check for pin-compatible alternatives within the same family if redesigning. Verify electrical parameter compatibility carefully.