LM5100CSD/NOPB Equivalent & Substitute Parts

Part Overview

The LM5100CSD/NOPB is a half-bridge gate driver IC manufactured by Texas Instruments, designed for independent N-channel MOSFET gate driving applications. This device operates with a supply voltage range of 9V to 14V and delivers 1A peak output current on both source and sink channels. The part is classified as obsolete, making substitute components necessary for new designs and ongoing production requirements.

Substiute Parts

LM5100CSD/NOPB

Texas InstrumentsIn Stock: 806LM5100CSD/NOPB Datasheet

Current PartRFQ

LM5100BMAX/NOPB

Texas InstrumentsIn Stock: 2284LM5100BMAX/NOPB Datasheet

MFR RecommendedRFQ

LM5101CSD/NOPB

Texas InstrumentsIn Stock: 9227LM5101CSD/NOPB Datasheet

MFR RecommendedRFQ

ISL2111ARTZ

Renesas Electronics CorporationIn Stock: 9546ISL2111ARTZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM5100CSD/NOPB is determined by the following critical parameters:

• Driven Configuration: Half-Bridge
• Channel Type: Independent
• Number of Drivers: 2
• Gate Type: N-Channel MOSFET
• Input Type: Non-Inverting
• Operating Temperature Range: -40°C ~ 125°C (TJ)
• Supply Voltage Compatibility: 9V ~ 14V minimum overlap
• RoHS3 Compliance

Three substitute parts meet these core requirements with varying performance characteristics and package options. The LM5100BMAX/NOPB provides enhanced output current capability in an 8-SOIC package. The LM5101CSD/NOPB maintains identical electrical specifications and package form factor as the original part. The ISL2111ARTZ from Renesas Electronics offers superior output current and faster switching performance in a 10-TDFN package.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts are active products with ROHS3 compliance, making them suitable for new designs and production environments where the obsolete LM5100CSD/NOPB is no longer available.

The LM5101CSD/NOPB is the direct functional equivalent, maintaining identical electrical specifications and package form factor. This part is recommended for designs requiring no PCB layout modifications and where the original 1A output current specification is sufficient.

The LM5100BMAX/NOPB doubles the peak output current to 2A on both source and sink channels while improving rise and fall times. This part requires PCB redesign due to its 8-SOIC package versus the original 10-WDFN package. Selection is appropriate for applications demanding higher gate drive current with layout flexibility.

The ISL2111ARTZ from Renesas Electronics provides the highest output current capability at 3A source and 4A sink, with significantly faster switching performance. The 10-TDFN package maintains similar footprint characteristics to the original part. This device operates at a lower supply voltage floor of 8V and carries MSL 2 classification. Selection is appropriate for high-performance applications where superior switching speed and output current are required.

Frequently Asked Questions (FAQ)

Q: Can the LM5101CSD/NOPB be used as a direct replacement for the LM5100CSD/NOPB?

A: Yes. The LM5101CSD/NOPB maintains identical electrical specifications, package form factor (10-WDFN), and pin configuration. No PCB modifications are required.

Q: What are the key differences between the LM5100BMAX/NOPB and the original part?

A: The LM5100BMAX/NOPB doubles the peak output current from 1A to 2A on both channels and improves switching speed. The package changes from 10-WDFN to 8-SOIC, requiring PCB layout redesign.

Q: Is the ISL2111ARTZ compatible with the original LM5100CSD/NOPB design?

A: The ISL2111ARTZ is functionally compatible as a half-bridge gate driver with non-inverting inputs and identical operating temperature range. However, it features higher output current (3A/4A), faster switching times (9ns/7.5ns), and operates at a lower minimum supply voltage of 8V. The 10-TDFN package is similar to the original 10-WDFN but requires verification of PCB footprint compatibility.

Q: What is the significance of the MSL rating difference between these parts?

A: The LM5100CSD/NOPB, LM5100BMAX/NOPB, and LM5101CSD/NOPB carry MSL 1 (Unlimited), indicating no moisture sensitivity constraints. The ISL2111ARTZ carries MSL 2 (1 Year), requiring storage in controlled humidity conditions and limiting shelf life to one year after packaging.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All three substitute parts are ROHS3 compliant, meeting environmental and regulatory requirements for new product designs.

Q: Which substitute part should be selected for a cost-optimized design?

A: Selection depends on application requirements. The LM5101CSD/NOPB provides the lowest-cost path with identical specifications and no redesign effort. The LM5100BMAX/NOPB offers enhanced performance at moderate cost with layout redesign. The ISL2111ARTZ provides maximum performance at higher cost with potential supply chain advantages from a second-source manufacturer.