LB1940T-MPB-H

Full Half-Bridge (H Bridge) Drivers Overview

The LB1940T-MPB-H is a monolithic digital integrated circuit featuring a dual H-bridge constant current driver architecture. It operates within a supply voltage range of 1.9 V to 7.5 V and supports a maximum collector current of 0.4 A per channel. The device utilizes a TSSOP-20 surface-mount package with dimensions of 6.5 mm x 4.4 mm x 1.0 mm. It functions reliably across an operating temperature range from -20 °C to +85 °C, providing a compact solution for stepper motor control applications requiring precise current regulation.

Full Half-Bridge (H Bridge) Drivers Feature Summary

• Integrates two independent H-bridge outputs for dual-channel stepper motor driving
• Provides constant current control functionality for precise motor operation
• Supports low-voltage operation starting at 1.9 V for flexible power integration

Full Half-Bridge (H Bridge) Drivers Applications

• Stepper motor control systems
• Precision positioning mechanisms
• Compact electromechanical actuators

Full Half-Bridge (H Bridge) Drivers Procurement Notes

Verify the specific suffix 'MPB' against official onsemi documentation to confirm exact tape-and-reel specifications or marking variations. Ensure the selected variant matches the required thermal performance and packaging standards for the target assembly process. Cross-reference the full part number with the manufacturer's current product status to confirm availability and compliance.

Full Half-Bridge (H Bridge) Drivers Selection Notes

Select this component when designing circuits requiring dual-channel constant current drive for small stepper motors. The wide input voltage range accommodates various logic levels and power supplies. The TSSOP-20 package offers a balance between pin count and board space efficiency for dense layouts.

Full Half-Bridge (H Bridge) Drivers Part Context

This part belongs to the LB1940 series of monolithic digital ICs designed specifically for stepper motor applications. The series focuses on integrating H-bridge drivers with constant current control capabilities into a single compact package. This approach simplifies system design by reducing external component count while maintaining reliable motor control performance.

Full Half-Bridge (H Bridge) Drivers Replacement Considerations

Consult official substitution lists for verified equivalents. Generic cross-references may not match the specific MPB suffix requirements or exact electrical tolerances defined in the datasheet.