LM5104MX/NOPB

Overview

The LM5104MX/NOPB is a high-voltage half-bridge gate driver designed to drive both high-side and low-side N-channel MOSFETs in synchronous buck configurations. It features adaptive edge control with programmable additional delay to minimize switching losses and prevent shoot-through. The device operates with a supply voltage range up to 100 V and provides 2-A peak output current capability for fast response applications.

Feature Summary

• Drives both high-side and low-side N-channel MOSFETs
• Adaptive rising and falling edges with programmable additional delay
• Single input configuration for simplified control

Applications

• Synchronous buck converter designs
• High-voltage switching applications requiring fast response
• Power supplies needing high current gate drive capability

Procurement Notes

Verify the specific suffix MX indicates the SOIC-8 package variant. Confirm NOPB denotes lead-free and RoHS compliance. Check for obsolescence status as Texas Instruments product lifecycles change. Ensure the design supports the 100 V maximum rating. Validate pinout compatibility with existing PCB layouts before procurement.

Selection Notes

Select this component when driving N-channel MOSFETs in high-voltage synchronous buck topologies. The adaptive delay feature is critical for optimizing efficiency in high-frequency switching. Consider the 2-A drive strength for larger gate charges. Ensure the operating temperature range meets system requirements. Verify input logic levels match the controller interface.

Part Context

This part belongs to Texas Instruments' high-voltage gate driver family, specifically optimized for half-bridge applications. It integrates features to manage switching transitions efficiently. The SOIC-8 package offers a compact solution for space-constrained designs. It complements other power management ICs in complex power systems.

Replacement Considerations

Check for direct pin-to-pin replacements within the LM510x series. Verify equivalent drive current and voltage ratings. Ensure adaptive delay functionality is present if required. Compare thermal performance and package dimensions. Consult official substitution guides for validated alternatives.