LB1860M-TLM-E Motor Driver IC - Equivalent & Substitute Parts

Part Overview

The LB1860M-TLM-E is a fully integrated motor driver IC manufactured by onsemi, designed for brushless DC (BLDC) motor control applications. This device integrates both control and power stage functionality in a compact 14-LSOP surface mount package, delivering 1.5A output current at 6.4V-7V supply voltage with support for 12V and 24V load voltages.

The LB1860M-TLM-E is classified as obsolete. Identifying equivalent substitute parts is essential for maintaining design continuity, ensuring supply chain reliability, and supporting legacy system maintenance or redesign initiatives.

Substiute Parts

LB1860M-TLM-E

onsemiIn Stock: 2123LB1860M-TLM-E 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-TLM-E is determined by the following critical parameters:

Primary Compatibility Criteria:

• Output Configuration: Half Bridge (2)
• Technology: Bipolar
• Current Rating: 1.5A
• Package Type: 14-LSOP surface mount
• Voltage Supply Range: 6.4V ~ 7V
• Motor Driver Function: Fully integrated control and power stage

Secondary Compatibility Criteria:

• Operating temperature range compatibility
• Moisture sensitivity level
• Regulatory compliance (REACH, RoHS status)

The LB1668M-W-AH qualifies as a substitute based on matching output configuration, bipolar technology, 1.5A current rating, and identical package specifications. Both parts share the same supply voltage range (6.4V ~ 7V) and surface mount 14-LSOP packaging. The substitute part supports an extended load voltage range (31V ~ 60V versus 12V, 24V) and slightly higher operating temperature maximum (85°C versus 80°C), providing broader application flexibility.

Parameter Comparison

Engineering Selection Recommendations

Both the LB1860M-TLM-E and LB1668M-W-AH are classified as obsolete products. Selection between these parts should be based on the following factors:

Regulatory Compliance: The LB1668M-W-AH carries RoHS3 compliance certification, whereas the main part does not specify RoHS status. For applications requiring RoHS compliance, the substitute part is the appropriate selection.

Load Voltage Requirements: The LB1668M-W-AH supports load voltages from 31V to 60V, compared to the main part's 12V and 24V specification. If your application requires load voltages exceeding 24V, the substitute part accommodates this requirement. For applications limited to 12V or 24V loads, both parts are functionally equivalent.

Operating Temperature Range: The LB1668M-W-AH extends the maximum operating temperature to 85°C versus 80°C for the main part. For thermal-constrained applications, the substitute provides a 5°C margin improvement.

Package and Interface Compatibility: Both parts utilize identical 14-LSOP surface mount packaging and deliver equivalent 1.5A output current. PCB layout and thermal management considerations remain consistent between the two devices.

Frequently Asked Questions (FAQ)

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

A: Yes, for applications operating within the original design parameters (12V or 24V load voltage, -30°C to 80°C operating temperature). The identical package, output configuration, current rating, and supply voltage range ensure mechanical and electrical compatibility. Verify that your application does not require the parallel interface specification of the main part, as the substitute does not specify interface type in the provided data.

Q: What is the primary difference between these two parts?

A: The LB1668M-W-AH supports an extended load voltage range (31V ~ 60V) compared to the LB1860M-TLM-E (12V, 24V). The substitute also provides RoHS3 compliance and a slightly higher maximum operating temperature (85°C versus 80°C).

Q: Are there any package considerations when substituting these parts?

A: No. Both parts use the 14-LSOP surface mount package with identical dimensions (0.173" width, 4.40mm). PCB footprints and reflow soldering profiles remain unchanged.

Q: Why are both parts classified as obsolete?

A: Obsolete status indicates these products are no longer in active production. Both parts maintain REACH compliance and EAR99 export classification. Inventory availability is limited; verify stock status with your supplier before design commitment.

Q: Does the substitute part require different circuit design considerations?

A: The extended load voltage capability of the LB1668M-W-AH does not require circuit modifications for applications using 12V or 24V loads. If your redesign incorporates higher load voltages (31V ~ 60V), verify that all passive components and PCB traces are rated for the increased voltage stress.