LB11867FV-TLM-H Equivalent & Substitute Parts

Part Overview

The LB11867FV-TLM-H is a brushless DC (BLDC) motor driver IC manufactured by onsemi, designed for applications requiring commutation control and direction management in fan controller systems. Operating across a 5.5V to 16V supply range, this device functions as a pre-driver with half-bridge output configuration in a 16-LSSOP surface mount package.

The LB11867FV-TLM-H is classified as obsolete. Identifying equivalent substitute parts is essential for design continuity, procurement planning, and system reliability when original inventory becomes unavailable.

Substiute Parts

LB11867FV-TLM-H

onsemiIn Stock: 8516LB11867FV-TLM-H Datasheet

Current PartRFQ

BD69730FV-GE2

Rohm SemiconductorIn Stock: 5216BD69730FV-GE2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LB11867FV-TLM-H is determined by the following critical parameters:

• Motor Type: Brushless DC (BLDC) motor driver capability
• Output Configuration: Half-bridge topology for motor commutation control
• Voltage Supply Range: 5.5V to 16V operational window
• Package Type: 16-LSSOP surface mount form factor
• Interface Type: Parallel or logic-level control interface
• Compliance: RoHS3 compliance and regulatory certifications (REACH, ECCN)

The BD69730FV-GE2 from Rohm Semiconductor qualifies as a substitute based on matching motor driver functionality, BLDC motor support, half-bridge output topology, compatible package dimensions, and equivalent regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The BD69730FV-GE2 is the qualified substitute for the obsolete LB11867FV-TLM-H based on the following engineering criteria:

Regulatory Compliance: Both parts maintain ROHS3 compliance, REACH unaffected status, and identical ECCN classification (EAR99), ensuring equivalent regulatory standing for procurement and deployment.

Product Status: The BD69730FV-GE2 carries active product status with current manufacturing support, addressing the obsolescence constraint of the LB11867FV-TLM-H and ensuring long-term availability.

Functional Compatibility: Both devices support BLDC motor driver functionality with half-bridge output topology, compatible with parallel and logic-level control interfaces for commutation and direction management applications.

Package Equivalence: Identical 16-LSSOP package dimensions (0.173", 4.40mm width) enable direct PCB layout compatibility without redesign.

Voltage and Temperature Operating Ranges: The BD69730FV-GE2 supply voltage range (4.3V ~ 17V) encompasses the LB11867FV-TLM-H range (5.5V ~ 16V), and the extended temperature range (-40°C ~ 105°C) provides broader operational coverage.

Moisture Sensitivity: The BD69730FV-GE2 MSL rating of 1 (unlimited) represents improved handling characteristics compared to the LB11867FV-TLM-H MSL rating of 3 (168 hours).

Frequently Asked Questions (FAQ)

Q: Can the BD69730FV-GE2 directly replace the LB11867FV-TLM-H without PCB modifications?

A: Yes. Both parts use the 16-LSSOP package with identical physical dimensions (0.173", 4.40mm width), enabling direct footprint compatibility. Pin configuration must be verified against manufacturer datasheets to confirm signal mapping alignment.

Q: What are the key differences between these two motor driver ICs?

A: The primary differences are: (1) Product status—BD69730FV-GE2 is active while LB11867FV-TLM-H is obsolete; (2) Output configuration—BD69730FV-GE2 provides 4 half-bridge outputs versus 2 for the LB11867FV-TLM-H; (3) Supply voltage floor—BD69730FV-GE2 operates from 4.3V versus 5.5V minimum; (4) Temperature range—BD69730FV-GE2 extends to -40°C and 105°C; (5) Moisture sensitivity—BD69730FV-GE2 has superior MSL rating of 1 versus 3.

Q: Are both parts suitable for fan controller applications?

A: Yes. Both devices are specified for BLDC motor control with commutation and direction management functions, supporting fan controller system requirements.

Q: What compliance certifications apply to the substitute part?

A: The BD69730FV-GE2 maintains ROHS3 compliance, REACH unaffected status, and EAR99 ECCN classification, matching the regulatory profile of the LB11867FV-TLM-H.

Q: Does the extended operating temperature range of the BD69730FV-GE2 affect system design?

A: The extended range (-40°C ~ 105°C versus -30°C ~ 95°C) provides additional thermal margin and may improve reliability in temperature-sensitive applications. System thermal design remains unchanged unless the application specifically requires operation below -30°C or above 95°C.

Q: What is the significance of the MSL rating difference?

A: MSL 1 (unlimited) for the BD69730FV-GE2 versus MSL 3 (168 hours) for the LB11867FV-TLM-H indicates improved moisture resistance. The substitute part requires less stringent moisture control during storage and handling, reducing logistics complexity.