LB1945H-MPB-E

Overview

The LB1945H-MPB-E is a fully integrated bipolar stepper motor driver manufactured by onsemi. It operates within an input supply voltage range of 4.75V to 5.25V and supports load voltages from 10V to 28V. The device delivers a continuous output current of 800mA, suitable for driving bipolar stepper motors. Designed for general-purpose applications, it functions reliably across an operating temperature range of -20°C to 105°C. The component is housed in a compact 28-HSOPH package.

Feature Summary

• Fully integrated control and driver functionality for bipolar stepper motors
• Supports standard bipolar parallel interface operation
• Optimized for low-voltage logic compatibility with high-load capability

Applications

• General purpose bipolar stepper motor control
• Office automation equipment
• Industrial control systems

Procurement Notes

Verify the exact suffix 'MPB-E' against official onsemi documentation to confirm pinout and thermal specifications. Ensure the selected package variant matches the required PCB footprint. Confirm compliance status and halide-free certification if required for specific manufacturing processes. Cross-reference the datasheet revision date to ensure alignment with current design standards.

Selection Notes

Select this component when a fully integrated solution for bipolar stepper motors is required without external power stages. It is appropriate for designs needing 800mA drive current within a 10V-28V load range. Consider the 28-HSOPH package size for space-constrained layouts. Verify that the 4.75V-5.25V logic supply aligns with the system's control voltage architecture.

Part Context

This part belongs to onsemi's portfolio of motor drivers and controllers. It falls under the broader category of power management ICs designed for motion control applications. The series includes various drivers optimized for different motor types and interface requirements, providing integrated solutions for industrial and consumer electronics.

Replacement Considerations

Consult official substitution guides for equivalent bipolar stepper drivers. Verify pin-to-pin compatibility and electrical parameter alignment before replacement. Check for updated package options or enhanced thermal performance in newer revisions.