LB11961-TLM-H Equivalent & Substitute Parts

Part Overview

The LB11961-TLM-H is a brushed DC motor driver IC manufactured by onsemi, designed for fan motor applications. This integrated power management device combines control and power stage functionality in a 14-HSSOP surface mount package. The part operates across a 4.5V to 16V supply range with 1A output current capability per half-bridge channel.

The LB11961-TLM-H is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this motor driver topology.

Substiute Parts

LB11961-TLM-H

onsemiIn Stock: 18651LB11961-TLM-H Datasheet

Current PartRFQ

LV11961HA-AH

onsemiIn Stock: 10296LV11961HA-AH Datasheet

SimilarRFQ

LB11961-TLM-E

onsemiIn Stock: 4081LB11961-TLM-E Datasheet

Parametric EquivalentRFQ

LB11961-W-AH

onsemiIn Stock: 10364LB11961-W-AH Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LB11961-TLM-H are identified based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

• Output Configuration: Half Bridge (2)
• Current - Output: 1A per channel
• Voltage - Supply Range: 4.5V ~ 16V
• Voltage - Load Range: 4.5V ~ 16V
• Package / Case: 14-LSSOP with 2 Heat Tabs
• Mounting Type: Surface Mount
• Motor Type: Brushed DC
• Applications: Fan Motor Driver

Substitute Categories:

1. Parametric Equivalent – Parts matching all critical electrical and mechanical parameters with identical supply voltage range, output current, and package specifications.

2. Similar Functional Equivalent – Parts with compatible output configuration and current rating but differing in supply voltage range or technology implementation, requiring design verification for specific applications.

Parameter Comparison

Engineering Selection Recommendations

Parametric Equivalents (Direct Substitutes):

The LB11961-TLM-E and LB11961-W-AH are parametric equivalents to the LB11961-TLM-H. These parts share identical electrical specifications (4.5V ~ 16V supply, 1A output current), mechanical packaging (14-LSSOP with heat tabs), and operating temperature range (-30°C ~ 90°C). All three parts are manufactured by onsemi, classified as obsolete, and maintain ROHS3 compliance and MSL 3 certification. These parts are suitable for direct substitution in existing designs without circuit modification.

Similar Functional Equivalent:

The LV11961HA-AH is a similar functional equivalent with the following considerations:

• Maintains identical output configuration (Half Bridge 2), current rating (1A), and package form factor (14-LSSOP with heat tabs)
• Extends supply voltage range to 3.6V ~ 16V (lower minimum than the main part)
• Extends operating temperature range to -40°C ~ 150°C (wider than the main part)
• Implements Bi-CMOS technology instead of Bipolar
• Uses Logic interface instead of Parallel interface
• Includes additional fault protection features (Over Temperature, Over Voltage, UVLO)
• Includes slew rate control

The LV11961HA-AH is suitable for applications requiring extended temperature operation or lower supply voltage operation. Circuit interface verification is necessary due to the Logic interface specification versus the Parallel interface of the main part.

All substitute parts maintain ROHS3 compliance, REACH unaffected status, and equivalent regulatory certifications (ECCN: EAR99, HTSUS: 8542.39.0001).

Frequently Asked Questions (FAQ)

Q: Can LB11961-TLM-E be used as a direct replacement for LB11961-TLM-H?

A: Yes. The LB11961-TLM-E is a parametric equivalent with identical electrical specifications, package form factor, and operating temperature range. No circuit modifications are required.

Q: What is the difference between LB11961-W-AH and LB11961-TLM-H?

A: The LB11961-W-AH is a parametric equivalent sharing all critical specifications with the LB11961-TLM-H. The difference is in the part number suffix, which indicates a different manufacturing variant or packaging configuration code. Both parts are functionally identical for motor driver applications.

Q: Can LV11961HA-AH replace LB11961-TLM-H in all applications?

A: The LV11961HA-AH is a similar functional equivalent with compatible output configuration and current rating. However, it differs in interface type (Logic vs. Parallel) and technology (Bi-CMOS vs. Bipolar). Circuit interface compatibility must be verified before substitution. The extended temperature range (-40°C ~ 150°C) and lower supply voltage minimum (3.6V) may be advantageous for specific applications.

Q: Are all substitute parts in the same package?

A: Yes. All substitute parts use the 14-LSSOP (0.173", 4.40mm Width) package with 2 heat tabs and surface mount mounting type. PCB layout compatibility is maintained across all listed substitutes.

Q: What compliance certifications apply to these substitute parts?

A: All substitute parts maintain ROHS3 compliance, REACH unaffected status, MSL 3 (168 Hours) moisture sensitivity level, ECCN EAR99, and HTSUS 8542.39.0001 classification. Regulatory requirements are consistent across the main part and all substitutes.

Q: Why is the LB11961-TLM-H classified as obsolete?

A: The product status reflects onsemi's discontinuation of this part number. Parametric equivalents (LB11961-TLM-E and LB11961-W-AH) remain available as alternatives for ongoing supply requirements.