LM5100BMAX Half-Bridge Gate Driver IC Equivalent & Substitute Parts

Part Overview

The LM5100BMAX is a half-bridge gate driver IC manufactured by Texas Instruments, designed for driving N-channel MOSFETs in half-bridge configurations. This device is classified as obsolete, which necessitates identification of active equivalent parts for new designs and ongoing production requirements. The LM5100BMAX operates with a supply voltage range of 9V to 14V and delivers 2A peak output current on both source and sink channels, making it suitable for moderate-power switching applications.

Substiute Parts

LM5100BMAX

Texas InstrumentsIn Stock: 1105LM5100BMAX Datasheet

Current PartRFQ

LM5100BMAX/NOPB

Texas InstrumentsIn Stock: 2284LM5100BMAX/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 eligibility for the LM5100BMAX is determined by the following critical parameters:

• Driven Configuration: Must be half-bridge
• Number of Drivers: Must be 2 independent channels
• Gate Type: Must be N-Channel MOSFET
• Voltage - Supply: Must support 9V ~ 14V range
• Current - Peak Output: Must support minimum 2A source and 2A sink
• Input Type: Must be non-inverting
• High Side Voltage - Max (Bootstrap): Must support minimum 118V
• Package / Case: Must be 8-SOIC form factor
• Mounting Type: Must be surface mount

All identified substitute parts meet these core electrical and mechanical requirements. Differences in logic voltage thresholds, rise/fall times, temperature range extensions, and compliance certifications do not prevent functional substitution but may offer performance or regulatory advantages.

Parameter Comparison

Engineering Selection Recommendations

Direct Replacement (Same Manufacturer): LM5100BMAX/NOPB is the active equivalent from Texas Instruments. This part maintains identical electrical specifications and operating parameters while offering ROHS3 compliance and tape & reel packaging for production environments. Selection of this part eliminates obsolescence risk while preserving design compatibility.

Cross-Manufacturer Alternatives: HIP2100EIBZ and HIP2100IBZ from Renesas Electronics Corporation are functionally equivalent alternatives. Both parts satisfy all core substitution criteria. The HIP2100IBZ variant is preferred for applications requiring unlimited moisture sensitivity tolerance. The HIP2100EIBZ variant includes an exposed pad for enhanced thermal performance and operates across an extended temperature range (-55°C to 150°C), suitable for demanding environmental conditions. Both Renesas options provide superior switching speed (10ns rise/fall time versus 570ns/430ns) and ROHS3 compliance.

Compliance Considerations: The original LM5100BMAX is RoHS non-compliant. All substitute parts listed are ROHS3 compliant, meeting current regulatory requirements for new designs and production.

Frequently Asked Questions (FAQ)

Q: Can LM5100BMAX/NOPB be used as a direct replacement for LM5100BMAX?

A: Yes. LM5100BMAX/NOPB is the active production equivalent with identical electrical specifications. The primary differences are packaging format (tape & reel versus bulk) and RoHS3 compliance status. No circuit modifications are required.

Q: What are the key differences between Texas Instruments and Renesas options?

A: All parts meet the core half-bridge gate driver requirements. Renesas HIP2100 variants offer faster switching times (10ns versus 570ns/430ns), extended operating temperature range (-55°C to 150°C versus -40°C to 125°C), and ROHS3 compliance. Bootstrap voltage capability is slightly lower (114V versus 118V), which remains adequate for most applications within the specified supply voltage range.

Q: Is the HIP2100EIBZ with exposed pad necessary for my application?

A: The exposed pad variant (HIP2100EIBZ) provides improved thermal dissipation. Selection depends on thermal requirements of your specific circuit. For standard applications, HIP2100IBZ without exposed pad is functionally equivalent and offers unlimited moisture sensitivity tolerance.

Q: Are there package compatibility concerns when substituting?

A: All substitute parts use 8-SOIC surface mount packaging with identical 0.154" (3.90mm) width. PCB footprints are compatible. HIP2100EIBZ includes an exposed pad requiring PCB layout modification for thermal connection; HIP2100IBZ uses standard 8-SOIC without exposed pad for direct footprint compatibility.

Q: What is the impact of different logic voltage thresholds?

A: LM5100BMAX specifies VIL at 2.3V with VIH unspecified. HIP2100 variants specify VIL at 4V and VIH at 7V. These differences affect input signal interpretation. Verify that your control signal levels meet the selected part's logic thresholds before substitution.

Q: Can I use these parts interchangeably in existing inventory?

A: Yes, provided your control signals meet the logic voltage requirements of the selected substitute. All parts are pin-compatible in 8-SOIC configuration and functionally equivalent for half-bridge gate driving applications.