LM5101CSD Half-Bridge Gate Driver IC Equivalent & Substitute Parts

Part Overview

The LM5101CSD 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 peak output currents of 1A (source) and 1A (sink). The LM5101CSD is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. Substitute parts must maintain functional compatibility across driven configuration, channel type, gate type, and critical electrical parameters.

Substiute Parts

LM5101CSD

Texas InstrumentsIn Stock: 642LM5101CSD Datasheet

Current PartRFQ

LM5101CSD/NOPB

Texas InstrumentsIn Stock: 9227LM5101CSD/NOPB Datasheet

DirectRFQ

ISL2111ARTZ

Renesas Electronics CorporationIn Stock: 9546ISL2111ARTZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LM5101CSD is determined by strict equivalence across the following critical parameters:

• Driven configuration must remain 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
• Supply voltage range must encompass or match 9V ~ 14V
• Peak output current capability must meet or exceed 1A (source) and 1A (sink)
• High side bootstrap voltage must support 118V operation
• Operating temperature range must cover -40°C ~ 125°C
• Package must be compatible with 10-WDFN Exposed Pad footprint

Substitute parts are grouped into two categories: direct manufacturer equivalents from Texas Instruments and manufacturer-recommended alternatives from other suppliers.

Parameter Comparison

Engineering Selection Recommendations

The LM5101CSD is obsolete and should be replaced in new designs. The LM5101CSD/NOPB is the direct equivalent from Texas Instruments, maintaining identical electrical specifications and package footprint while offering active product status and ROHS3 compliance. This part is the preferred substitute for direct replacement applications.

The ISL2111ARTZ from Renesas Electronics Corporation is a manufacturer-recommended alternative that meets all functional substitution criteria. This part offers enhanced performance characteristics including higher peak output current capability (3A source, 4A sink versus 1A, 1A), faster rise and fall times (9ns, 7.5ns versus 990ns, 715ns), and lower logic voltage thresholds (1.4V, 2.2V). The ISL2111ARTZ operates across an extended supply voltage range (8V ~ 14V) and maintains the required bootstrap voltage capability (114V). Both substitute parts carry ROHS3 compliance and REACH unaffected status.

Selection between LM5101CSD/NOPB and ISL2111ARTZ depends on application requirements. Use LM5101CSD/NOPB for direct pin-compatible replacement with identical timing characteristics. Use ISL2111ARTZ when enhanced output current capability and faster switching performance provide system benefits.

Frequently Asked Questions (FAQ)

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

A: Yes. The LM5101CSD/NOPB is electrically and mechanically identical to the LM5101CSD, with the primary difference being active product status and ROHS3 compliance. Both parts share the same 10-WSON (4x4) package, supply voltage range (9V ~ 14V), output current ratings (1A source, 1A sink), and operating temperature range (-40°C ~ 125°C).

Q: Is the ISL2111ARTZ compatible with LM5101CSD applications?

A: The ISL2111ARTZ meets all functional substitution criteria for half-bridge gate driver applications. It maintains the same driven configuration, channel type, number of drivers, gate type, and input type. However, the ISL2111ARTZ uses a 10-TDFN package versus the 10-WSON package of the LM5101CSD. PCB layout modifications are required. The ISL2111ARTZ offers superior performance with higher output current (3A, 4A) and faster switching times (9ns, 7.5ns).

Q: What are the key differences between LM5101CSD/NOPB and ISL2111ARTZ?

A: Both parts function as half-bridge gate drivers with independent N-channel MOSFET control. LM5101CSD/NOPB maintains identical electrical specifications to the original LM5101CSD. ISL2111ARTZ provides enhanced performance: higher peak output current (3A source, 4A sink), faster rise/fall times (9ns, 7.5ns), lower logic voltage thresholds (1.4V, 2.2V), and extended supply voltage range (8V ~ 14V). Package differences exist: LM5101CSD/NOPB uses 10-WSON (4x4), while ISL2111ARTZ uses 10-TDFN (4x4).

Q: Are both substitute parts RoHS compliant?

A: Yes. Both LM5101CSD/NOPB and ISL2111ARTZ carry ROHS3 compliance status. The original LM5101CSD is RoHS non-compliant.

Q: What is the moisture sensitivity level for each part?

A: LM5101CSD and LM5101CSD/NOPB both have MSL 1 (Unlimited). ISL2111ARTZ has MSL 2 (1 Year), requiring controlled storage and handling conditions.

Q: Can these parts be used interchangeably in existing designs?

A: LM5101CSD and LM5101CSD/NOPB are fully interchangeable due to identical package and electrical specifications. ISL2111ARTZ requires PCB layout changes due to different package type (10-TDFN versus 10-WSON) and may require circuit evaluation due to enhanced performance characteristics.