LB1845L-E Equivalent & Substitute Parts

Part Overview

The LB1845L-E is a motor driver IC manufactured by onsemi in 28-DIP packaging, designed for integrated motor control applications. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The LB1845L-E operates as a fully integrated motor driver solution with control and power stage functionality integrated into a single package.

Substiute Parts

LB1845L-E

onsemiIn Stock: 3878LB1845L-E Datasheet

Current PartRFQ

A3966SLBTR-T

Allegro MicroSystemsIn Stock: 18503A3966SLBTR-T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LB1845L-E is based on the following critical parameters:

• Functional Category: Power Management (PMIC) - Motor Driver
• Function Type: Driver with fully integrated control and power stage
• Compliance & Certification: REACH Unaffected, ECCN EAR99
• Regulatory Status: Both main and substitute parts maintain equivalent compliance profiles

The A3966SLBTR-T qualifies as a substitute based on matching functional classification as a fully integrated motor driver with control and power stage architecture. Both components serve equivalent roles in motor control applications, though with different packaging and electrical specifications.

Parameter Comparison

Engineering Selection Recommendations

The A3966SLBTR-T is an active product from Allegro MicroSystems and maintains equivalent compliance certifications (REACH Unaffected, ECCN EAR99) to the obsolete LB1845L-E. Selection of this substitute requires evaluation of the following factors:

• Packaging Transition: The substitute requires transition from through-hole (28-DIP) to surface-mount (16-SOIC) technology, necessitating PCB redesign
• Product Status: The A3966SLBTR-T is active and supported, providing long-term availability compared to the obsolete LB1845L-E
• Regulatory Compliance: Both components maintain equivalent REACH and ECCN classifications, suitable for equivalent regulatory environments

Frequently Asked Questions (FAQ)

Q: Can the A3966SLBTR-T directly replace the LB1845L-E without PCB modification?

A: No. The A3966SLBTR-T uses surface-mount packaging (16-SOIC) while the LB1845L-E uses through-hole packaging (28-DIP). PCB redesign is required for physical and electrical integration.

Q: Are the compliance certifications equivalent between these parts?

A: Yes. Both the LB1845L-E and A3966SLBTR-T maintain REACH Unaffected and ECCN EAR99 classifications. The A3966SLBTR-T additionally carries ROHS3 compliance.

Q: What is the primary reason for substitution?

A: The LB1845L-E is obsolete. The A3966SLBTR-T is an active product from Allegro MicroSystems, ensuring continued availability and manufacturer support.

Q: Are there electrical parameter differences between these motor drivers?

A: Yes. Electrical specifications including voltage supply ranges, output current ratings, and operating temperature ranges differ between the two components. Detailed electrical datasheets must be consulted for application-specific compatibility verification.

Q: What mounting considerations apply to the A3966SLBTR-T?

A: The A3966SLBTR-T is a surface-mount component in 16-PowerSOIC packaging. Assembly requires surface-mount soldering processes and compatible PCB footprint design.