LB11683H-TLM-E Equivalent & Substitute Parts

Part Overview

The LB11683H-TLM-E is a Brushless DC (BLDC) motor driver manufactured by onsemi, designed for general-purpose applications requiring integrated control and power stage functionality. This device operates across a 5.5V to 13.8V supply range with 1.5A output current capability in a 28-HSOP package configuration. The product is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and component procurement.

Substiute Parts

LB11683H-TLM-E

onsemiIn Stock: 807LB11683H-TLM-E Datasheet

Current PartRFQ

LB11685AV-W-AH

onsemiIn Stock: 2001LB11685AV-W-AH Datasheet

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BA6840BFS-E2

Rohm SemiconductorIn Stock: 1713BA6840BFS-E2 Datasheet

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BA6859AFP-YE2

Rohm SemiconductorIn Stock: 16046BA6859AFP-YE2 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LB11683H-TLM-E is determined by the following critical parameters:

• Motor Type: Brushless DC (BLDC)
• Function: Driver - Fully Integrated, Control and Power Stage
• Output Configuration: Half Bridge (3)
• Interface: Parallel
• Technology: Bipolar
• Applications: General Purpose

Substitute parts must maintain these core functional characteristics. Variations in output current, supply voltage range, operating temperature, and package form factor are permissible provided the substitute meets or exceeds the electrical requirements of the application. Package compatibility and thermal management considerations must be evaluated based on specific board layout constraints.

Parameter Comparison

Engineering Selection Recommendations

LB11685AV-W-AH (onsemi): This substitute maintains identical functional architecture (Half Bridge 3, Parallel interface, Bipolar technology) with expanded supply voltage range (4.5V ~ 18V) and superior operating temperature range (-40°C ~ 150°C). Output current is reduced to 1.2A, which may require application verification. Package transition from 28-HSOP to 24-LSOP necessitates PCB layout modification. Product status is obsolete; use for legacy system maintenance only.

BA6840BFS-E2 (Rohm Semiconductor): This substitute provides active product status, ensuring long-term availability and supply chain stability. Functional equivalence is maintained across core parameters. Supply voltage range is constrained to 4.25V ~ 5.5V, limiting applicability to low-voltage designs. Output current of 1.3A and operating temperature range of -20°C ~ 75°C require application compatibility verification. ROHS3 compliance and MSL 1 rating provide superior environmental handling characteristics. Package reduction to 20-SOP offers space optimization benefits.

BA6859AFP-YE2 (Rohm Semiconductor): This substitute is classified as "Not For New Designs," restricting its use to legacy system support and replacement scenarios. Detailed functional specifications are incomplete in available documentation. Supply voltage range (4.5V ~ 5.5V) is narrower than the main part. ROHS3 compliance and MSL 1 rating are present. Tape & Reel packaging indicates high-volume availability.

Frequently Asked Questions (FAQ)

Q: Can LB11685AV-W-AH directly replace LB11683H-TLM-E without circuit modification?

A: Functional replacement is possible due to matching Half Bridge (3) output configuration, Parallel interface, and Bipolar technology. However, output current reduction from 1.5A to 1.2A requires load current verification. Package change from 28-HSOP to 24-LSOP mandates PCB layout redesign. Expanded supply voltage range (4.5V ~ 18V) provides broader operational flexibility.

Q: Is BA6840BFS-E2 suitable for designs requiring the full 5.5V ~ 13.8V supply range?

A: No. BA6840BFS-E2 supply voltage range is limited to 4.25V ~ 5.5V, making it incompatible with applications requiring operation above 5.5V. This substitute is restricted to low-voltage designs within its specified range.

Q: What are the implications of product status classifications?

A: LB11683H-TLM-E and LB11685AV-W-AH are classified as obsolete, indicating discontinued manufacturing and limited future availability. BA6840BFS-E2 maintains active status, ensuring continued production and supply chain support. BA6859AFP-YE2 is marked "Not For New Designs," restricting use to legacy system maintenance and component replacement only.

Q: How do package differences affect substitution feasibility?

A: Package transitions require PCB layout modification, including trace routing, via placement, and thermal management adjustments. LB11685AV-W-AH (24-LSOP) and BA6840BFS-E2 (20-SOP) represent significant package reductions from the original 28-HSOP, potentially enabling board space optimization. BA6859AFP-YE2 (25-HSOP) maintains similar form factor to the main part, minimizing layout impact.

Q: What is the significance of MSL ratings in component selection?

A: Moisture Sensitivity Level (MSL) indicates storage and handling requirements. LB11683H-TLM-E and LB11685AV-W-AH carry MSL 3 (168 Hours), requiring controlled humidity storage and limited shelf life. BA6840BFS-E2 and BA6859AFP-YE2 carry MSL 1 (Unlimited), permitting standard storage conditions without moisture sensitivity constraints.

Q: Are all substitute parts REACH compliant?

A: Yes. All listed substitute parts maintain REACH Unaffected status, indicating compliance with regulatory requirements for hazardous substance restrictions.