LM5104M Half-Bridge Gate Driver IC Equivalent & Substitute Parts

Part Overview

The LM5104M is a half-bridge gate driver IC manufactured by Texas Instruments, designed for driving N-channel MOSFETs in synchronous half-bridge configurations. This device operates with a supply voltage range of 9V to 14V and provides dual-channel gate driving with inverting and non-inverting input types. The LM5104M is classified as Last Time Buy, indicating limited future availability. Identifying equivalent and substitute parts ensures design continuity and supply chain resilience for applications requiring half-bridge gate driver functionality.

Substiute Parts

LM5104M

Texas InstrumentsIn Stock: 2398LM5104M Datasheet

Current PartRFQ

LM5104M/NOPB

Texas InstrumentsIn Stock: 19729LM5104M/NOPB Datasheet

DirectRFQ

LM5104MX/NOPB

Texas InstrumentsIn Stock: 10405LM5104MX/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM5104M is determined by strict equivalence across the following critical parameters:

• Driven Configuration: Half-Bridge topology
• Number of Drivers: 2 channels
• Gate Type: N-Channel MOSFET
• Voltage - Supply: 9V ~ 14V range
• Logic Voltage Thresholds: VIL 0.8V, VIH 2.2V
• Current - Peak Output: 1.6A source and sink capability
• Input Type: Inverting and Non-Inverting channels
• High Side Voltage - Max (Bootstrap): 118 V
• Rise / Fall Time (Typ): 600ns, 600ns
• Package / Case: 8-SOIC form factor
• Operating Temperature Range: -40°C ~ 125°C (TJ)

All substitute parts listed maintain identical electrical and mechanical specifications across these parameters, ensuring direct functional equivalence in half-bridge gate driver applications.

Parameter Comparison

Engineering Selection Recommendations

LM5104M/NOPB is a direct equivalent with identical electrical and mechanical specifications. This part carries Last Time Buy status, matching the original LM5104M. Selection of this variant is appropriate when tube packaging is acceptable for assembly processes.

LM5104MX/NOPB is the manufacturer-recommended substitute, offering identical electrical and mechanical specifications with Active product status, ensuring long-term availability. This part is supplied in Cut Tape (CT) and Digi-Reel® packaging formats, suitable for high-volume automated assembly operations. The Active status provides supply chain continuity beyond the Last Time Buy window of the original LM5104M.

For new designs or applications requiring extended product lifecycle support, LM5104MX/NOPB is the preferred selection. For existing inventory management or short-term production runs, LM5104M/NOPB provides equivalent functionality with current stock availability.

Frequently Asked Questions (FAQ)

Q: Can LM5104M/NOPB and LM5104MX/NOPB be used interchangeably with LM5104M?

A: Yes. All three parts maintain identical electrical specifications, logic voltage thresholds, output current ratings, timing characteristics, and 8-SOIC package dimensions. They are functionally equivalent for half-bridge gate driver applications.

Q: What is the difference between the three part numbers?

A: The differences are limited to packaging format and product status. LM5104M and LM5104M/NOPB are Last Time Buy variants; LM5104MX/NOPB is Active status. LM5104M/NOPB uses tube packaging, while LM5104MX/NOPB uses Cut Tape and Digi-Reel® formats. Electrical performance is identical across all variants.

Q: Why is LM5104MX/NOPB recommended for new designs?

A: LM5104MX/NOPB carries Active product status, ensuring continued manufacturing and availability. The original LM5104M and LM5104M/NOPB are Last Time Buy, indicating limited future production. For applications requiring long-term supply chain stability, LM5104MX/NOPB is the appropriate selection.

Q: Are there any compatibility concerns when switching between these part numbers?

A: No compatibility concerns exist. All three parts are pin-compatible, electrically identical, and use the same 8-SOIC package. PCB layout, schematic connections, and firmware remain unchanged across substitutions.

Q: What packaging formats are available?

A: LM5104M/NOPB is supplied in tube packaging. LM5104MX/NOPB is available in Cut Tape (CT) and Digi-Reel® formats. Selection depends on assembly process requirements and volume considerations.