LM5110-3M

Overview

The LM5110-3M/NOPB is a dual-channel low-side gate driver manufactured by Texas Instruments. It provides 5-A peak output current for one channel and 3-A for the other, supporting supply voltages from 3.5 V to 14 V. The device features a dedicated input ground pin to isolate logic signals from high-voltage switching noise. It includes a shutdown input for control and operates within a temperature range of -40°C to +125°C. Packaged in an 8-pin SOIC (D) format, it utilizes TTL-compatible logic inputs.

Feature Summary

• Dual-channel architecture with asymmetric drive strengths of 5 A and 3 A
• Negative output voltage capability for robust low-side driving
• Dedicated input ground pin to prevent logic disturbance during switching
• Integrated shutdown functionality for system safety control

Applications

• Low-side MOSFET driving in DC-DC converters
• Gate driving for power switches in motor control circuits
• Isolated interface stages in power supply designs

Procurement Notes

Verify the specific suffix '3M' against the official Texas Instruments datasheet to confirm package type and electrical characteristics. Ensure the 'NOPB' designation indicates lead-free compliance as per RoHS standards. Cross-reference the ordering part number with authorized distributors to avoid counterfeit components. Confirm that the 8-pin SOIC footprint matches your PCB layout requirements before finalizing procurement.

Selection Notes

Select this component when asymmetric drive currents are required for different MOSFETs in a single stage. The dedicated input ground is critical for applications with significant common-mode noise. Verify that the 14 V maximum supply voltage aligns with your system's rail. Consider the thermal performance of the SOIC package if operating near the upper temperature limit.

Part Context

This device belongs to the LM5110 family of compound gate drivers designed for high-speed power switching applications. It complements higher-voltage half-bridge drivers by providing a specialized solution for low-side configurations where noise immunity and negative voltage handling are prioritized over high-side capabilities.

Replacement Considerations

The LM5110-3SD/NOPB serves as a functional alternative in the WSON-10 package. Verify pinout compatibility and thermal dissipation differences between the SOIC and WSON packages before substitution.