LM5100AM Half-Bridge Gate Driver IC Equivalent & Substitute Parts

Part Overview

The LM5100AM is a half-bridge gate driver IC manufactured by Texas Instruments, designed for driving N-channel MOSFETs in half-bridge configurations. This component is classified as obsolete, which necessitates identification of active equivalent and substitute parts for new designs and production continuity. The LM5100AM operates with a supply voltage range of 9V to 14V and delivers peak output currents of 3A for both source and sink operations, making it suitable for moderate-power switching applications.

Substiute Parts

LM5100AM

Texas InstrumentsIn Stock: 1882LM5100AM Datasheet

Current PartRFQ

LM5100AM/NOPB

National SemiconductorIn Stock: 1004LM5100AM/NOPB Datasheet

DirectRFQ

HIP2100EIBZ

Renesas Electronics CorporationIn Stock: 25739HIP2100EIBZ Datasheet

MFR RecommendedRFQ

HIP2100IBZ

Renesas Electronics CorporationIn Stock: 21977HIP2100IBZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM5100AM is determined by strict equivalence in the following critical parameters:

• Driven Configuration: Half-Bridge topology
• Channel Type: Independent channels
• Number of Drivers: 2 drivers
• Gate Type: N-Channel MOSFET
• Supply Voltage Range: 9V ~ 14V
• Input Type: Non-Inverting
• Package Type: 8-SOIC form factor
• Mounting Type: Surface Mount

The substitute parts identified—LM5100AM/NOPB, HIP2100EIBZ, and HIP2100IBZ—maintain these core functional and mechanical parameters. Variations in secondary parameters such as logic voltage thresholds, peak output current ratings, and rise/fall times represent performance differences that must be evaluated within the context of specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

LM5100AM/NOPB serves as the direct equivalent to the obsolete LM5100AM, maintaining identical electrical specifications and package configuration. This part is currently active and available in production quantities, making it the primary choice for direct replacement in existing designs.

HIP2100EIBZ and HIP2100IBZ are manufacturer-recommended alternatives from Renesas Electronics. Both parts maintain the core half-bridge gate driver functionality and supply voltage compatibility. Key differences include reduced peak output current (2A versus 3A), slightly lower bootstrap voltage rating (114V versus 118V), and extended operating temperature range (-55°C to 150°C). The HIP2100EIBZ variant includes an exposed pad (8-SOIC-EP package) and carries ROHS3 compliance with MSL 2 rating. The HIP2100IBZ uses standard 8-SOIC packaging with MSL 1 rating and ROHS3 compliance.

Selection between these alternatives depends on application-specific requirements regarding output current capacity, temperature operating range, and regulatory compliance mandates.

Frequently Asked Questions (FAQ)

Q: Can HIP2100EIBZ and HIP2100IBZ be used interchangeably with LM5100AM?

A: Both Renesas parts maintain the critical functional parameters: half-bridge configuration, independent dual channels, N-channel MOSFET gate driving, non-inverting input logic, and 9V–14V supply voltage operation. However, the reduced peak output current (2A versus 3A) and lower bootstrap voltage maximum (114V versus 118V) must be evaluated against application load requirements.

Q: What is the difference between HIP2100EIBZ and HIP2100IBZ?

A: The primary differences are package variant and moisture sensitivity rating. HIP2100EIBZ uses 8-SOIC-EP (exposed pad) packaging with MSL 2 (1 Year), while HIP2100IBZ uses standard 8-SOIC packaging with MSL 1 (Unlimited). Both share identical electrical specifications and operating temperature range.

Q: Is LM5100AM/NOPB a true equivalent to LM5100AM?

A: Yes. LM5100AM/NOPB maintains all electrical parameters, supply voltage range, output current ratings, bootstrap voltage, and package configuration. The primary distinction is product status: LM5100AM/NOPB is active and available in production quantities.

Q: What are the package compatibility considerations?

A: All substitute parts use 8-SOIC surface-mount packaging with 0.154" (3.90mm) width, ensuring PCB footprint compatibility. HIP2100EIBZ includes an exposed pad variant, which may provide thermal benefits in high-power applications but requires PCB layout modifications.

Q: Are there compliance differences between these parts?

A: LM5100AM is RoHS non-compliant. LM5100AM/NOPB compliance status is not specified. Both HIP2100EIBZ and HIP2100IBZ are ROHS3 compliant. Applications requiring RoHS compliance should select Renesas alternatives.