LM5101AMR/NOPB Equivalent & Substitute Parts

Part Overview

The LM5101AMR/NOPB 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 3A for both source and sink operations. The part is currently in Last Time Buy status, indicating end-of-life production. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications requiring half-bridge gate driver functionality.

Substiute Parts

LM5101AMR/NOPB

Texas InstrumentsIn Stock: 12838LM5101AMR/NOPB Datasheet

Current PartRFQ

UCC27201ADDAR

Texas InstrumentsIn Stock: 295994UCC27201ADDAR Datasheet

MFR RecommendedRFQ

ISL2111ABZ

Renesas Electronics CorporationIn Stock: 1360ISL2111ABZ Datasheet

MFR RecommendedRFQ

ISL2111ABZ-T

Renesas Electronics CorporationIn Stock: 2844ISL2111ABZ-T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LM5101AMR/NOPB is determined by the following critical parameters: half-bridge driven configuration, independent channel type, 2-driver count, N-channel MOSFET gate type, non-inverting input type, and surface mount packaging in 8-pin form factor. The substitute parts must maintain functional equivalence in these core attributes.

The UCC27201ADDAR from Texas Instruments qualifies as a direct substitute, offering the same half-bridge configuration, driver count, and gate type with an expanded supply voltage range (8V ~ 17V) and improved performance characteristics. The ISL2111ABZ and ISL2111ABZ-T from Renesas Electronics Corporation provide equivalent functionality with identical core specifications, differing primarily in packaging format (8-SOIC versus 8-PowerSOIC) and inventory packaging method (tube versus cut tape).

Parameter Comparison

Engineering Selection Recommendations

The UCC27201ADDAR is the primary recommended substitute for the LM5101AMR/NOPB. Both devices are manufactured by Texas Instruments and share identical package geometry (8-PowerSOIC), enabling direct PCB layout compatibility without redesign. The UCC27201ADDAR maintains active product status and offers extended supply voltage range (8V ~ 17V) compared to the LM5101AMR/NOPB (9V ~ 14V), providing greater design flexibility. Both parts are ROHS3 compliant and carry equivalent regulatory certifications.

The ISL2111ABZ and ISL2111ABZ-T from Renesas Electronics Corporation are functionally equivalent alternatives. These devices maintain the same half-bridge configuration, driver count, and gate type. The primary design consideration is the package transition from 8-PowerSOIC to 8-SOIC, which requires PCB layout verification to confirm pin-to-pin compatibility and thermal performance adequacy. Both ISL2111 variants are active products with ROHS3 compliance. The ISL2111ABZ-T differs from ISL2111ABZ only in packaging format (cut tape versus tube), with identical electrical specifications.

Frequently Asked Questions (FAQ)

Q: Can the UCC27201ADDAR be used as a direct replacement for the LM5101AMR/NOPB without PCB modifications?

A: Yes. Both devices use the 8-PowerSOIC package with identical pin assignments and footprint geometry, enabling direct PCB substitution without layout changes.

Q: What are the key differences between the ISL2111ABZ and ISL2111ABZ-T?

A: The ISL2111ABZ and ISL2111ABZ-T are electrically identical. The difference is packaging format: ISL2111ABZ is supplied in tube packaging, while ISL2111ABZ-T is supplied in cut tape with digi-reel format. Both use the 8-SOIC package.

Q: Can the ISL2111 series replace the LM5101AMR/NOPB on existing PCBs?

A: The ISL2111 series uses 8-SOIC packaging versus the LM5101AMR/NOPB 8-PowerSOIC package. While both are 8-pin packages with 3.90mm width, the footprint differs. PCB layout verification is required to confirm compatibility before implementation.

Q: What is the impact of the supply voltage range difference between LM5101AMR/NOPB and UCC27201ADDAR?

A: The UCC27201ADDAR supports 8V ~ 17V supply voltage, while the LM5101AMR/NOPB supports 9V ~ 14V. The UCC27201ADDAR provides broader operating range, but both devices function within the LM5101AMR/NOPB specified range. No design changes are required if the application operates within 9V ~ 14V.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The LM5101AMR/NOPB and all listed substitute parts (UCC27201ADDAR, ISL2111ABZ, ISL2111ABZ-T) are ROHS3 compliant.

Q: What is the significance of the Last Time Buy status for the LM5101AMR/NOPB?

A: Last Time Buy status indicates the manufacturer has discontinued production and will not accept new orders after a specified date. Identifying and qualifying substitute parts ensures design continuity and supply chain reliability for ongoing production requirements.