LB1860M-W-AH Equivalent & Substitute Parts

Part Overview

The LB1860M-W-AH is a fully integrated motor driver IC manufactured by onsemi, designed for brushless DC (BLDC) motor control applications. This bipolar parallel motor driver features a half-bridge output configuration with 1.5A output current capability and operates across a 6.4V to 7V supply voltage range. The device is classified as obsolete, making identification of functionally equivalent substitute components essential for ongoing system support and new design implementations.

Substiute Parts

LB1860M-W-AH

onsemiIn Stock: 706LB1860M-W-AH Datasheet

Current PartRFQ

LB1668M-W-AH

onsemiIn Stock: 771LB1668M-W-AH Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LB1860M-W-AH is determined by the following critical parameters:

• Output Configuration: Half Bridge (2) topology
• Technology: Bipolar implementation
• Current Rating: 1.5A output capability
• Voltage Supply Range: 6.4V ~ 7V
• Mounting Type: Surface Mount
• Package Compatibility: 14-LSOP form factor
• Interface Type: Parallel control interface
• Motor Application: DC motor and general-purpose motor control

The LB1668M-W-AH qualifies as a substitute based on matching output configuration, bipolar technology, current rating, supply voltage range, mounting type, and package form factor. Both devices share identical package dimensions and electrical interface requirements, enabling direct functional replacement in existing circuit designs.

Parameter Comparison

Engineering Selection Recommendations

Both the LB1860M-W-AH and LB1668M-W-AH are classified as obsolete products. Selection between these devices should be based on load voltage requirements and environmental storage conditions.

The LB1860M-W-AH is specified for 12V and 24V load applications with MSL Level 1 (unlimited moisture sensitivity), providing superior shelf-life stability and suitability for extended storage without moisture-controlled environments.

The LB1668M-W-AH supports higher load voltage ranges (31V ~ 60V) with a marginally extended operating temperature upper limit of 85°C compared to 80°C. However, its MSL Level 3 rating requires moisture-controlled storage conditions (168-hour maximum exposure at specified humidity levels).

Both devices maintain REACH Unaffected and EAR99 ECCN compliance status. Selection should prioritize load voltage compatibility with the target application circuit and organizational moisture control capabilities for component storage and handling.

Frequently Asked Questions (FAQ)

Q: Can the LB1668M-W-AH directly replace the LB1860M-W-AH in existing designs?

A: Direct replacement is possible when the application load voltage requirement falls within the LB1668M-W-AH specification range (31V ~ 60V). If the design operates at 12V or 24V load voltages as specified for the LB1860M-W-AH, the LB1668M-W-AH remains functionally compatible due to matching output configuration, current rating, supply voltage, and package form factor. Verify load voltage compatibility before implementation.

Q: What are the package compatibility considerations?

A: Both devices utilize the 14-LSOP (0.173", 4.40mm Width) surface-mount package. PCB footprints, solder pad layouts, and mounting procedures are identical, enabling direct physical substitution without circuit board redesign.

Q: How do the moisture sensitivity levels affect component handling?

A: The LB1860M-W-AH (MSL Level 1) has unlimited shelf life and requires no special moisture control during storage or handling. The LB1668M-W-AH (MSL Level 3) must be stored in moisture-controlled environments and has a maximum floor-life of 168 hours after opening the moisture barrier bag. Organizations must implement appropriate moisture management protocols for the LB1668M-W-AH.

Q: Are there differences in operating temperature ranges?

A: The LB1860M-W-AH operates