LB11852FV-TLM-E Equivalent & Substitute Parts

Part Overview

The LB11852FV-TLM-E is a motor driver IC manufactured by onsemi, designed for brushless DC (BLDC) motor speed control applications. This device functions as a PWM controller with pre-driver half-bridge output configuration, operating across dual voltage supply ranges of 4.5V–5.5V and 5.5V–16V. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement.

Substiute Parts

LB11852FV-TLM-E

onsemiIn Stock: 1061LB11852FV-TLM-E Datasheet

Current PartRFQ

LV88551JA-AH

onsemiIn Stock: 708LV88551JA-AH Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LB11852FV-TLM-E are identified based on the following critical parameters that determine functional compatibility:

• Motor type support: Brushless DC (BLDC) capability
• Package compatibility: 20-LFSOP (0.173", 4.40mm Width) surface mount
• Interface type: PWM control
• Voltage supply range overlap or coverage
• Operating temperature range suitability
• Manufacturer: onsemi (same source for design continuity)

The LV88551JA-AH qualifies as a substitute based on matching package geometry, PWM interface, BLDC motor support, and onsemi manufacturing. Voltage supply range differences and temperature range variations are documented in the comparison table below for engineering evaluation.

Parameter Comparison

Engineering Selection Recommendations

Both the LB11852FV-TLM-E and LV88551JA-AH are classified as obsolete products. Selection between these parts depends on application-specific voltage and temperature requirements:

The LV88551JA-AH operates across 6V–16V supply range, which excludes the 4.5V–5.5V lower band supported by the LB11852FV-TLM-E. Applications requiring operation below 6V supply voltage cannot use the LV88551JA-AH as a direct substitute.

The LV88551JA-AH provides extended operating temperature range (-40°C to 105°C) compared to the LB11852FV-TLM-E (-30°C to 95°C), offering broader thermal performance for demanding environments.

Both parts maintain identical package geometry, moisture sensitivity classification, and regulatory compliance status (REACH Unaffected, EAR99 ECCN). PCB layout and thermal management considerations remain consistent between alternatives.

Frequently Asked Questions (FAQ)

Q: Can the LV88551JA-AH replace the LB11852FV-TLM-E in all applications?

A: No. The LV88551JA-AH minimum supply voltage is 6V, while the LB11852FV-TLM-E supports 4.5V–5.5V operation. Applications requiring the lower voltage band require the original part or alternative sources.

Q: Are the packages physically identical?

A: Yes. Both parts use 20-LFSOP (0.173", 4.40mm Width) surface mount packaging. PCB footprints are compatible without modification.

Q: What is the functional difference between these parts?

A: The LB11852FV-TLM-E functions as a PWM speed controller with pre-driver half-bridge output. The LV88551JA-AH is a multiphase motor driver with power MOSFET technology. Output configuration and driver architecture differ; application requirements determine suitability.

Q: Do both parts have the same moisture sensitivity requirements?

A: Yes. Both parts carry MSL 3 (168 Hours) classification, requiring identical handling and storage protocols.

Q: Are there compliance or regulatory differences?

A: No. Both parts are REACH Unaffected and classified under ECCN EAR99. Regulatory status is equivalent.