BD63843EFV-E2

Overview

The BD63843EFV-E2 is a bipolar stepper motor driver from ROHM Semiconductor, designed for single power supply operation with a maximum voltage of 36 V. It features an integrated DMOS output stage capable of delivering up to 1 A continuous current and 1.5 A peak current. The device supports micro-stepping resolution ranging from full step to 1/16 step via the CLK-IN interface. Key protection circuits include thermal shutdown (TSD), overcurrent protection (OCP), under-voltage lockout (UVLO), and over-voltage lockout (OVLO). It operates within a temperature range of -25°C to +85°C in a 28-pin HTSSOP-B package.

Feature Summary

• Supports mixed decay function for smooth micro-step operation
• Integrates comprehensive protection mechanisms including thermal and overcurrent safeguards
• Enables forward and reverse rotation switching through simple control signals
• Features low on-resistance DMOS outputs for efficient heat dissipation

Applications

• Precision positioning systems requiring micro-stepping control
• Automotive interior actuators and motion control modules
• Industrial automation equipment utilizing bipolar stepper motors
• Home appliance mechanisms needing compact motor drive solutions

Procurement Notes

Verify component authenticity against official ROHM Semiconductor documentation before integration. Confirm that the specific suffix E2 matches the required pin configuration and packaging specifications. Ensure that the operating environment remains within the specified thermal and voltage limits to maintain reliability. Check for any recent design notices or lifecycle status updates regarding this part number prior to final procurement decisions.

Selection Notes

Select this component when a single-supply bipolar stepper driver with integrated protection is required. It is suitable for applications demanding high precision through 1/16 micro-stepping capabilities. Consider the thermal performance of the HTSSOP-B package for heat dissipation requirements. Ensure the control interface aligns with the CLK-IN driving method specified in the technical documentation.

Part Context

This part belongs to the BD63843EFV series of motor drivers manufactured by ROHM Semiconductor. It is specifically engineered for bipolar stepper motor applications. The product line emphasizes compactness and high thermal efficiency through its specialized package design. It serves as a solution for motion control tasks requiring reliable current regulation and multiple safety features.

Replacement Considerations

The BD63843EFV is listed as a pin-compatible alternative within the same product family. Verify functional equivalence and parameter alignment before substitution. Note that the BD63843EFV-E2 status is Not Recommended for New Designs; existing designs should continue using this part while new implementations consider alternatives.