LB11660FV-TLM-E Motor Driver Equivalent & Substitute Parts

Part Overview

The LB11660FV-TLM-E is a fully integrated motor driver IC manufactured by onsemi, designed for brushless DC (BLDC) motor applications with integrated control and power stage functionality. This device operates across a 4V to 15V supply voltage range and delivers 1.5A output current in a 16-SSOP surface mount package.

The LB11660FV-TLM-E is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production requirements for applications utilizing this motor driver topology.

Substiute Parts

LB11660FV-TLM-E

onsemiIn Stock: 20409LB11660FV-TLM-E Datasheet

Current PartRFQ

BD61245EFV-E2

Rohm SemiconductorIn Stock: 50116BD61245EFV-E2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LB11660FV-TLM-E is determined by the following critical parameters:

Functional Requirements:

• Fully integrated motor driver with control and power stage
• Brushless DC (BLDC) motor drive capability
• PWM interface support

Electrical Specifications:

• Supply voltage range: 4V ~ 15V minimum overlap
• Output current rating: 1.5A or higher
• Output configuration: High side or half bridge topology

Physical & Environmental Constraints:

• Surface mount package with compatible footprint dimensions
• Operating temperature range: -30°C to 90°C minimum coverage
• RoHS3 compliance and MSL rating compatibility

Compliance & Certification:

• ROHS3 compliant
• REACH unaffected status
• EAR99 ECCN classification

The BD61245EFV-E2 from Rohm Semiconductor qualifies as a substitute based on functional equivalence in BLDC motor driver integration, overlapping electrical specifications, compatible surface mount packaging, and matching compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

BD61245EFV-E2 Substitution Basis:

The BD61245EFV-E2 is an active product from Rohm Semiconductor and serves as a functional equivalent for the obsolete LB11660FV-TLM-E. Both devices provide fully integrated BLDC motor driver functionality with PWM control interfaces and surface mount packaging in the 16-pin SSOP/VSSOP family.

Compliance Alignment: Both parts maintain ROHS3 compliance, REACH unaffected status, and identical MSL ratings, ensuring regulatory and supply chain compatibility.

Electrical Compatibility: The BD61245EFV-E2 provides higher output current (1.8A vs. 1.5A) and extended operating temperature range (-40°C to 105°C vs. -30°C to 90°C), offering improved performance margins. Supply voltage overlap (4V ~ 15V) is maintained across both devices.

Package Considerations: Both devices use 16-pin SSOP-family packages with identical 0.173" width and 4.40mm pitch. The BD61245EFV-E2 includes an exposed pad variant (16-VSSOP), which may require PCB layout adjustment but provides thermal performance benefits.

Technology Transition: The shift from bipolar to DMOS technology in the BD61245EFV-E2 represents a manufacturing advancement with no functional impact on BLDC motor drive applications.

Frequently Asked Questions (FAQ)

Q: Can the BD61245EFV-E2 directly replace the LB11660FV-TLM-E on existing PCBs?

A: Physical footprint compatibility exists between the 16-LSSOP and 16-VSSOP packages due to identical pitch and width specifications. However, the BD61245EFV-E2 includes an exposed pad, requiring PCB layout verification. Electrical functionality is compatible across the specified operating ranges.

Q: What are the key differences in electrical performance?

A: The BD61245EFV-E2 provides 1.8A output current versus 1.5A, supporting higher motor drive capacity. Operating temperature range extends to -40°C to 105°C compared to -30°C to 90°C. Supply voltage ranges overlap at 4V ~ 15V. Load voltage specification differs (0.44V vs. 3V ~ 15V), reflecting different measurement or application contexts.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the LB11660FV-TLM-E and BD61245EFV-E2 are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution.

Q: What is the significance of the technology difference (Bipolar vs. DMOS)?

A: DMOS technology in the BD61245EFV-E2 represents a modern manufacturing process with improved efficiency characteristics. For BLDC motor driver applications, this transition maintains functional equivalence while offering potential benefits in thermal performance and power dissipation.

Q: How does the exposed pad on the BD61245EFV-E2 affect PCB design?

A: The exposed pad on the 16-VSSOP package provides direct thermal connection to the PCB ground plane, improving heat dissipation. PCB layout must include appropriate via patterns and thermal pad design to utilize this feature effectively.

Q: Is the parallel interface requirement met by the BD61245EFV-E2?

A: The LB11660FV-TLM-E specifies parallel and PWM interface support. The BD61245EFV-E2 specifies PWM interface. Design verification is required to confirm that application-specific control requirements are satisfied by the PWM interface alone.