LM5100CMAX Half-Bridge Gate Driver IC Equivalent & Substitute Parts

Part Overview

The LM5100CMAX 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 9V to 14V and delivers peak output currents of 1A for both source and sink operations. The LM5100CMAX is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing system support and new design implementations.

Substiute Parts

LM5100CMAX

Texas InstrumentsIn Stock: 2075LM5100CMAX Datasheet

Current PartRFQ

LM5100CMAX/NOPB

Texas InstrumentsIn Stock: 997LM5100CMAX/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 LM5100CMAX is determined by the following critical parameters:

• Driven Configuration: Must be half-bridge
• Channel Type: Must be independent
• Number of Drivers: Must be 2
• Gate Type: Must be N-channel MOSFET
• Input Type: Must be non-inverting
• Package / Case: Must be 8-SOIC form factor
• Mounting Type: Must be surface mount

All substitute parts listed below satisfy these core requirements. Variations in supply voltage range, output current capability, bootstrap voltage, rise/fall time, and operating temperature represent performance enhancements or extended specifications that maintain functional compatibility within the half-bridge gate driver category.

Parameter Comparison

Engineering Selection Recommendations

LM5100CMAX/NOPB (Texas Instruments): This part maintains identical electrical specifications to the LM5100CMAX while offering ROHS3 compliance and Last Time Buy status. It is packaged in tape and reel format and represents the direct manufacturer upgrade path for existing LM5100CMAX designs.

HIP2100EIBZ (Renesas Electronics): This substitute provides enhanced performance characteristics including doubled peak output current (2A source/sink), faster rise and fall times (10ns typical), and extended operating temperature range (-55°C to 150°C). The package includes an exposed pad variant of the 8-SOIC form factor. ROHS3 compliance and active product status support long-term availability. Moisture sensitivity level is rated at 2 (1 Year).

HIP2100IBZ (Renesas Electronics): This substitute offers identical electrical performance to the HIP2100EIBZ with the exception of the exposed pad feature, utilizing standard 8-SOIC packaging. Moisture sensitivity level is rated at 1 (Unlimited), providing superior moisture tolerance. ROHS3 compliance and active product status ensure sustained supply chain support.

Frequently Asked Questions (FAQ)

Q: Can the LM5100CMAX be directly replaced with HIP2100EIBZ or HIP2100IBZ?

A: Yes. Both Renesas parts maintain the core functional requirements: half-bridge configuration, independent dual channels, N-channel MOSFET gate driving, non-inverting input logic, and 8-SOIC surface mount packaging. The HIP2100 series provides enhanced specifications including higher output current capability and faster switching times, making them functionally compatible and performance-superior substitutes.

Q: What are the differences between HIP2100EIBZ and HIP2100IBZ?

A: The primary difference is packaging. HIP2100EIBZ includes an exposed pad in the 8-SOIC package, while HIP2100IBZ uses standard 8-SOIC without the exposed pad. HIP2100IBZ offers unlimited moisture sensitivity (MSL 1), whereas HIP2100EIBZ is rated MSL 2 (1 Year). Electrical performance is identical between the two variants.

Q: Why is the LM5100CMAX classified as obsolete?

A: The LM5100CMAX has reached end-of-life status from Texas Instruments. The LM5100CMAX/NOPB variant is designated Last Time Buy, indicating final availability windows. For new designs and ongoing support, migration to active alternatives such as the HIP2100 series is recommended.

Q: Are there compliance differences between the substitute parts?

A: Yes. The original LM5100CMAX is RoHS non-compliant. LM5100CMAX/NOPB, HIP2100EIBZ, and HIP2100IBZ are all ROHS3 compliant. All parts are REACH unaffected and classified under ECCN EAR99.

Q: What is the significance of the exposed pad in HIP2100EIBZ?

A: The exposed pad provides enhanced thermal dissipation characteristics, beneficial in applications requiring improved heat management. For designs without thermal constraints, HIP2100IBZ without the exposed pad is functionally equivalent.

Q: How do the logic voltage thresholds differ?

A: LM5100CMAX and LM5100CMAX/NOPB specify VIL at 2.3V with VIH unspecified. HIP2100EIBZ and HIP2100IBZ specify VIL at 4V and VIH at 7V. These differences reflect different input threshold specifications and should be evaluated against specific circuit requirements.