LM5107SD Half-Bridge Gate Driver IC Equivalent & Substitute Parts

Part Overview

The LM5107SD is a half-bridge gate driver IC manufactured by Texas Instruments, designed for driving N-channel MOSFETs in half-bridge configurations. This device operates with a supply voltage range of 8V to 14V and delivers peak output currents of 1.3A (source) and 1.4A (sink), making it suitable for power management applications requiring independent channel control.

The LM5107SD is classified as obsolete, which necessitates identification of equivalent substitute parts for ongoing design support and procurement. The LM5107SD/NOPB variant provides direct functional equivalence while maintaining active product status and improved compliance certifications.

Substiute Parts

LM5107SD

Texas InstrumentsIn Stock: 1026LM5107SD Datasheet

Current PartRFQ

LM5107SD/NOPB

Texas InstrumentsIn Stock: 4404LM5107SD/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM5107SD is determined by strict equivalence across the following critical parameters:

• Driven Configuration: Half-Bridge topology must be maintained
• Number of Drivers: Exactly 2 independent channels required
• Gate Type: N-Channel MOSFET driver specification
• Voltage - Supply: 8V ~ 14V operating range
• Peak Output Current: 1.3A source / 1.4A sink capability
• High Side Voltage - Max (Bootstrap): 118V maximum rating
• Rise / Fall Time: 15ns typical switching performance
• Operating Temperature Range: -40°C ~ 125°C (TJ)
• Package / Case: 8-WDFN Exposed Pad form factor
• Mounting Type: Surface Mount configuration

The LM5107SD/NOPB is classified as a direct substitute, sharing identical electrical specifications and mechanical packaging while differing only in product status (active vs. obsolete) and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The LM5107SD/NOPB is the direct substitute for the obsolete LM5107SD. Both parts maintain identical electrical and mechanical specifications across all critical parameters. The primary distinctions are:

Product Status: The LM5107SD/NOPB carries active product status, ensuring continued manufacturer support, availability, and compliance with current industry standards.

Compliance Certifications: The LM5107SD/NOPB is ROHS3 compliant, whereas the original LM5107SD is RoHS non-compliant. This compliance improvement aligns with current regulatory requirements for electronic components in regulated markets.

Packaging Format: The LM5107SD/NOPB is supplied in Tape & Reel (TR) format, standard for production environments, while the original LM5107SD is available in bulk packaging.

For new designs or component replacement in existing applications, the LM5107SD/NOPB is the appropriate selection, providing equivalent performance with improved compliance status and active product lifecycle support.

Frequently Asked Questions (FAQ)

Q: Can the LM5107SD/NOPB be used as a direct replacement for the LM5107SD?

A: Yes. The LM5107SD/NOPB is electrically and mechanically identical to the LM5107SD across all specified parameters, including supply voltage, output current ratings, switching times, and package form factor. The primary difference is product status and compliance certification.

Q: What is the significance of the "/NOPB" suffix in the part number?

A: The "/NOPB" suffix indicates "No Plumbum" (lead-free) packaging, reflecting RoHS3 compliance. This designation distinguishes the part from legacy versions and confirms adherence to current environmental and regulatory standards.

Q: Are there any thermal or electrical performance differences between these parts?

A: No. Both parts operate within identical temperature ranges (-40°C ~ 125°C TJ), deliver the same peak output currents (1.3A source, 1.4A sink), and exhibit identical rise/fall times (15ns typical). Thermal and electrical performance are equivalent.

Q: What packaging options are available for each part?

A: The LM5107SD is supplied in bulk packaging. The LM5107SD/NOPB is supplied in Tape & Reel (TR) format, which is standard for automated assembly and production environments.

Q: Is the 8-WSON (4x4) package compatible with existing PCB designs?

A: Yes. Both parts use the identical 8-WDFN Exposed Pad package with 8-WSON (4x4) dimensions. PCB layouts, footprints, and assembly processes remain unchanged between the two parts.